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go-mail/msg_test.go
Winni Neessen 1c6b9faf15
Add tests for Msg.HasSendError method. 
Introduce several unit tests for the Msg.HasSendError function to ensure its correct behavior under different conditions like unsent messages, failed deliveries, and temporary errors. This enhances the validation of message error states within the system.
2024-10-28 17:34:35 +01:00

6889 lines
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// SPDX-FileCopyrightText: 2022-2023 The go-mail Authors
//
// SPDX-License-Identifier: MIT
package mail
import (
"bytes"
"context"
"embed"
"errors"
"fmt"
ht "html/template"
"io"
"net"
"os"
"reflect"
"strings"
"testing"
ttpl "text/template"
"time"
)
var (
charsetTests = []struct {
name string
value Charset
want Charset
}{
{"UTF-7", CharsetUTF7, "UTF-7"},
{"UTF-8", CharsetUTF8, "UTF-8"},
{"US-ASCII", CharsetASCII, "US-ASCII"},
{"ISO-8859-1", CharsetISO88591, "ISO-8859-1"},
{"ISO-8859-2", CharsetISO88592, "ISO-8859-2"},
{"ISO-8859-3", CharsetISO88593, "ISO-8859-3"},
{"ISO-8859-4", CharsetISO88594, "ISO-8859-4"},
{"ISO-8859-5", CharsetISO88595, "ISO-8859-5"},
{"ISO-8859-6", CharsetISO88596, "ISO-8859-6"},
{"ISO-8859-7", CharsetISO88597, "ISO-8859-7"},
{"ISO-8859-9", CharsetISO88599, "ISO-8859-9"},
{"ISO-8859-13", CharsetISO885913, "ISO-8859-13"},
{"ISO-8859-14", CharsetISO885914, "ISO-8859-14"},
{"ISO-8859-15", CharsetISO885915, "ISO-8859-15"},
{"ISO-8859-16", CharsetISO885916, "ISO-8859-16"},
{"ISO-2022-JP", CharsetISO2022JP, "ISO-2022-JP"},
{"ISO-2022-KR", CharsetISO2022KR, "ISO-2022-KR"},
{"windows-1250", CharsetWindows1250, "windows-1250"},
{"windows-1251", CharsetWindows1251, "windows-1251"},
{"windows-1252", CharsetWindows1252, "windows-1252"},
{"windows-1255", CharsetWindows1255, "windows-1255"},
{"windows-1256", CharsetWindows1256, "windows-1256"},
{"KOI8-R", CharsetKOI8R, "KOI8-R"},
{"KOI8-U", CharsetKOI8U, "KOI8-U"},
{"Big5", CharsetBig5, "Big5"},
{"GB18030", CharsetGB18030, "GB18030"},
{"GB2312", CharsetGB2312, "GB2312"},
{"TIS-620", CharsetTIS620, "TIS-620"},
{"EUC-KR", CharsetEUCKR, "EUC-KR"},
{"Shift_JIS", CharsetShiftJIS, "Shift_JIS"},
{"GBK", CharsetGBK, "GBK"},
{"Unknown", CharsetUnknown, "Unknown"},
}
encodingTests = []struct {
name string
value Encoding
want Encoding
}{
{"Quoted-Printable", EncodingQP, "quoted-printable"},
{"Base64", EncodingB64, "base64"},
{"Unencoded (8-Bit)", NoEncoding, "8bit"},
{"US-ASCII (7-Bit)", EncodingUSASCII, "7bit"},
}
pgpTests = []struct {
name string
value PGPType
}{
{"No PGP encoding", NoPGP},
{"PGP encrypted", PGPEncrypt},
{"PGP signed", PGPSignature},
}
boundaryTests = []struct {
name string
value string
}{
{"test123", "test123"},
{"empty string", ""},
}
mimeTests = []struct {
name string
value MIMEVersion
want MIMEVersion
}{
{"1.0", MIME10, "1.0"},
{"1.1 (not a valid version at this time)", MIMEVersion("1.1"), "1.1"},
}
contentTypeTests = []struct {
name string
ctype ContentType
}{
{"text/plain", TypeTextPlain},
{"text/html", TypeTextHTML},
{"application/octet-stream", TypeAppOctetStream},
}
// Inspired by https://www.youtube.com/watch?v=xxX81WmXjPg&t=623s, yet, some assumptions in that video are
// incorrect for RFC5321/RFC5322 but rely on deprecated information from RFC822. The tests have been
// adjusted accordingly.
rfc5322Test = []struct {
value string
valid bool
}{
{"hi@domain.tld", true},
{"hi@", false},
{`hi+there@domain.tld`, true},
{"hi.there@domain.tld", true},
{"hi.@domain.tld", false}, // Point at the end of localpart is not allowed
{"hi..there@domain.tld", false}, // Double point is not allowed
{`!#$%&'(-/=?'@domain.tld`, false}, // Invalid characters
{"hi*there@domain.tld", true}, // * is allowed in localpart
{`#$%!^/&@domain.tld`, true}, // Allowed localpart characters
{"h(a)i@domain.tld", false}, // Not allowed to use parenthesis
{"(hi)there@domain.tld", false}, // The (hi) at the start is a comment which is allowed in RFC822 but not in RFC5322 anymore
{"hithere@domain.tld(tld)", true}, // The (tld) at the end is also a comment
{"hi@there@domain.tld", false}, // Can't have two @ signs
{`"hi@there"@domain.tld`, true}, // Quoted @-signs are allowed
{`"hi there"@domain.tld`, true}, // Quoted whitespaces are allowed
{`" "@domain.tld`, true}, // Still valid, since quoted
{`"<\"@\".!#%$@domain.tld"`, false}, // Quoting with illegal characters is not allowed
{`<\"@\\".!#%$@domain.tld`, false}, // Still a bunch of random illegal characters
{`hi"@"there@domain.tld`, false}, // Quotes must be dot-seperated
{`"<\"@\\".!.#%$@domain.tld`, false}, // Quote is escaped and dot-seperated which would be RFC822 compliant, but not RFC5322 compliant
{`hi\ there@domain.tld`, false}, // Spaces must be quoted
{"hello@tld", true}, // TLD is enough
{`你好@域名.顶级域名`, true}, // We speak RFC6532
{"1@23456789", true}, // Hypothetically valid, if somebody registers that TLD
{"1@[23456789]", false}, // While 23456789 is decimal for 1.101.236.21 it is not RFC5322 compliant
}
)
//go:embed testdata/attachment.txt testdata/embed.txt
var efs embed.FS
func TestNewMsg(t *testing.T) {
t.Run("create new message", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if message.addrHeader == nil {
t.Errorf("address header map is nil")
}
if message.genHeader == nil {
t.Errorf("generic header map is nil")
}
if message.preformHeader == nil {
t.Errorf("preformatted header map is nil")
}
if message.charset != CharsetUTF8 {
t.Errorf("default charset for new Msg mismatch. Expected: %s, got: %s", CharsetUTF8,
message.charset)
}
if message.encoding != EncodingQP {
t.Errorf("default encoding for new Msg mismatch. Expected: %s, got: %s", EncodingQP,
message.encoding)
}
if message.mimever != MIME10 {
t.Errorf("default MIME version for new Msg mismatch. Expected: %s, got: %s", MIME10,
message.mimever)
}
if reflect.TypeOf(message.encoder).String() != "mime.WordEncoder" {
t.Errorf("default encoder for new Msg mismatch. Expected: %s, got: %s", "mime.WordEncoder",
reflect.TypeOf(message.encoder).String())
}
if !strings.EqualFold(message.encoder.Encode(message.charset.String(), "ab12§$/"),
`=?UTF-8?q?ab12=C2=A7$/?=`) {
t.Errorf("default encoder for new Msg mismatch. QP encoded expected string: %s, got: %s",
`=?UTF-8?q?ab12=C2=A7$/?=`, message.encoder.Encode(message.charset.String(), "ab12§$/"))
}
})
t.Run("new message with nil option", func(t *testing.T) {
message := NewMsg(nil)
if message == nil {
t.Fatal("message is nil")
}
})
t.Run("new message with custom charsets", func(t *testing.T) {
for _, tt := range charsetTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg(WithCharset(tt.value), nil)
if message == nil {
t.Fatal("message is nil")
}
if message.charset != tt.want {
t.Fatalf("NewMsg(WithCharset(%s)) failed. Expected charset: %s, got: %s", tt.value, tt.want,
message.charset)
}
})
}
})
t.Run("new message with custom encoding", func(t *testing.T) {
for _, tt := range encodingTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg(WithEncoding(tt.value), nil)
if message == nil {
t.Fatal("message is nil")
}
if message.encoding != tt.want {
t.Errorf("NewMsg(WithEncoding(%s)) failed. Expected encoding: %s, got: %s", tt.value,
tt.want, message.encoding)
}
})
}
})
t.Run("new message with custom MIME version", func(t *testing.T) {
for _, tt := range mimeTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg(WithMIMEVersion(tt.value))
if message == nil {
t.Fatal("message is nil")
}
if message.mimever != tt.want {
t.Errorf("NewMsg(WithMIMEVersion(%s)) failed. Expected MIME version: %s, got: %s",
tt.value, tt.want, message.mimever)
}
})
}
})
t.Run("new message with custom boundary", func(t *testing.T) {
for _, tt := range boundaryTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg(WithBoundary(tt.value))
if message == nil {
t.Fatal("message is nil")
}
if message.boundary != tt.value {
t.Errorf("NewMsg(WithBoundary(%s)) failed. Expected boundary: %s, got: %s", tt.value,
tt.value, message.boundary)
}
})
}
})
t.Run("new message with custom PGP type", func(t *testing.T) {
for _, tt := range pgpTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg(WithPGPType(tt.value))
if message == nil {
t.Fatal("message is nil")
}
if message.pgptype != tt.value {
t.Errorf("NewMsg(WithPGPType(%d)) failed. Expected PGP type: %d, got: %d", tt.value,
tt.value, message.pgptype)
}
})
}
})
t.Run("new message with middleware: uppercase", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if len(message.middlewares) != 0 {
t.Errorf("NewMsg() failed. Expected empty middlewares, got: %d", len(message.middlewares))
}
message = NewMsg(WithMiddleware(uppercaseMiddleware{}))
if len(message.middlewares) != 1 {
t.Errorf("NewMsg(WithMiddleware(uppercaseMiddleware{})) failed. Expected 1 middleware, got: %d",
len(message.middlewares))
}
message = NewMsg(WithMiddleware(uppercaseMiddleware{}), WithMiddleware(encodeMiddleware{}))
if len(message.middlewares) != 2 {
t.Errorf("NewMsg(WithMiddleware(uppercaseMiddleware{}),WithMiddleware(encodeMiddleware{})) "+
"failed. Expected 2 middleware, got: %d", len(message.middlewares))
}
})
t.Run("new message without default user-agent", func(t *testing.T) {
message := NewMsg(WithNoDefaultUserAgent())
if message == nil {
t.Fatal("message is nil")
}
if !message.noDefaultUserAgent {
t.Errorf("NewMsg(WithNoDefaultUserAgent()) failed. Expected noDefaultUserAgent to be true, got: %t",
message.noDefaultUserAgent)
}
})
}
func TestMsg_SetCharset(t *testing.T) {
t.Run("SetCharset on new message", func(t *testing.T) {
for _, tt := range charsetTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetCharset(tt.value)
if message.charset != tt.want {
t.Errorf("failed to set charset. Expected: %s, got: %s", tt.want, message.charset)
}
})
}
})
t.Run("SetCharset to override WithCharset", func(t *testing.T) {
message := NewMsg(WithCharset(CharsetUTF7))
if message == nil {
t.Fatal("message is nil")
}
if message.charset != CharsetUTF7 {
t.Errorf("failed to set charset on message creation. Expected: %s, got: %s", CharsetUTF7,
message.charset)
}
message.SetCharset(CharsetUTF8)
if message.charset != CharsetUTF8 {
t.Errorf("failed to set charset. Expected: %s, got: %s", CharsetUTF8, message.charset)
}
})
}
func TestMsg_SetEncoding(t *testing.T) {
t.Run("SetEncoding on new message", func(t *testing.T) {
for _, tt := range encodingTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetEncoding(tt.value)
if message.encoding != tt.want {
t.Errorf("failed to set encoding. Expected: %s, got: %s", tt.want, message.encoding)
}
})
}
})
t.Run("SetEncoding to override WithEncoding", func(t *testing.T) {
message := NewMsg(WithEncoding(EncodingUSASCII))
if message == nil {
t.Fatal("message is nil")
}
if message.encoding != EncodingUSASCII {
t.Errorf("failed to set encoding on message creation. Expected: %s, got: %s", EncodingUSASCII,
message.encoding)
}
message.SetEncoding(EncodingB64)
if message.encoding != EncodingB64 {
t.Errorf("failed to set encoding. Expected: %s, got: %s", EncodingB64, message.encoding)
}
})
}
func TestMsg_SetBoundary(t *testing.T) {
t.Run("SetBoundary on new message", func(t *testing.T) {
for _, tt := range boundaryTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBoundary(tt.value)
if message.boundary != tt.value {
t.Errorf("failed to set boundary. Expected: %s, got: %s", tt.value, message.boundary)
}
})
}
})
t.Run("SetBoundary to override WithBoundary", func(t *testing.T) {
message := NewMsg(WithBoundary("123Test"))
if message == nil {
t.Fatal("message is nil")
}
if message.boundary != "123Test" {
t.Errorf("failed to set boundary on message creation. Expected: %s, got: %s", "123Test",
message.boundary)
}
message.SetBoundary("test123")
if message.boundary != "test123" {
t.Errorf("failed to set boundary. Expected: %s, got: %s", "test123", message.boundary)
}
})
}
func TestMsg_SetMIMEVersion(t *testing.T) {
t.Run("SetMIMEVersion on new message", func(t *testing.T) {
for _, tt := range mimeTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetMIMEVersion(tt.value)
if message.mimever != tt.value {
t.Errorf("failed to set mime version. Expected: %s, got: %s", tt.value, message.mimever)
}
})
}
})
t.Run("SetMIMEVersion to override WithMIMEVersion", func(t *testing.T) {
message := NewMsg(WithMIMEVersion("1.1"))
if message == nil {
t.Fatal("message is nil")
}
if message.mimever != "1.1" {
t.Errorf("failed to set mime version on message creation. Expected: %s, got: %s", "1.1",
message.mimever)
}
message.SetMIMEVersion(MIME10)
if message.mimever != MIME10 {
t.Errorf("failed to set mime version. Expected: %s, got: %s", MIME10, message.mimever)
}
})
}
func TestMsg_SetPGPType(t *testing.T) {
t.Run("SetPGPType on new message", func(t *testing.T) {
for _, tt := range pgpTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetPGPType(tt.value)
if message.pgptype != tt.value {
t.Errorf("failed to set pgp type. Expected: %d, got: %d", tt.value, message.pgptype)
}
})
}
})
t.Run("SetPGPType to override WithPGPType", func(t *testing.T) {
message := NewMsg(WithPGPType(PGPSignature))
if message == nil {
t.Fatal("message is nil")
}
if message.pgptype != PGPSignature {
t.Errorf("failed to set pgp type on message creation. Expected: %d, got: %d", PGPSignature,
message.pgptype)
}
message.SetPGPType(PGPEncrypt)
if message.pgptype != PGPEncrypt {
t.Errorf("failed to set pgp type. Expected: %d, got: %d", PGPEncrypt, message.pgptype)
}
})
}
func TestMsg_Encoding(t *testing.T) {
t.Run("Encoding returns expected string", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range encodingTests {
t.Run(tt.name, func(t *testing.T) {
message.SetEncoding(tt.value)
if message.Encoding() != tt.want.String() {
t.Errorf("failed to get encoding. Expected: %s, got: %s", tt.want.String(), message.Encoding())
}
})
}
})
}
func TestMsg_Charset(t *testing.T) {
t.Run("Charset returns expected string", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range charsetTests {
t.Run(tt.name, func(t *testing.T) {
message.SetCharset(tt.value)
if message.Charset() != tt.want.String() {
t.Errorf("failed to get charset. Expected: %s, got: %s", tt.want.String(), message.Charset())
}
})
}
})
}
func TestMsg_SetHeader(t *testing.T) {
t.Run("SetHeader on new message", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range genHeaderTests {
t.Run(tt.name, func(t *testing.T) {
//goland:noinspection GoDeprecation
message.SetHeader(tt.header, "test", "foo", "bar")
values, ok := message.genHeader[tt.header]
if !ok {
t.Fatalf("failed to set header, genHeader field for %s is not set", tt.header)
}
if len(values) != 3 {
t.Fatalf("failed to set header, genHeader value count for %s is %d, want: 3",
tt.header, len(values))
}
if values[0] != "test" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", tt.header,
values[0], "test")
}
if values[1] != "foo" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", tt.header,
values[1], "foo")
}
if values[2] != "bar" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", tt.header,
values[1], "bar")
}
})
}
})
}
func TestMsg_SetGenHeader(t *testing.T) {
t.Run("SetGenHeader on new message", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range genHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message.SetGenHeader(tt.header, "test", "foo", "bar")
values, ok := message.genHeader[tt.header]
if !ok {
t.Fatalf("failed to set header, genHeader field for %s is not set", tt.header)
}
if len(values) != 3 {
t.Fatalf("failed to set header, genHeader value count for %s is %d, want: 3",
tt.header, len(values))
}
if values[0] != "test" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", tt.header,
values[0], "test")
}
if values[1] != "foo" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", tt.header,
values[1], "foo")
}
if values[2] != "bar" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", tt.header,
values[1], "bar")
}
})
}
})
t.Run("SetGenHeader with empty genHeaderMap", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.genHeader = nil
message.SetGenHeader(HeaderSubject, "test", "foo", "bar")
values, ok := message.genHeader[HeaderSubject]
if !ok {
t.Fatalf("failed to set header, genHeader field for %s is not set", HeaderSubject)
}
if len(values) != 3 {
t.Fatalf("failed to set header, genHeader value count for %s is %d, want: 3",
HeaderSubject, len(values))
}
if values[0] != "test" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", HeaderSubject,
values[0], "test")
}
if values[1] != "foo" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", HeaderSubject,
values[1], "foo")
}
if values[2] != "bar" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", HeaderSubject,
values[1], "bar")
}
})
}
func TestMsg_SetHeaderPreformatted(t *testing.T) {
t.Run("SetHeaderPreformatted on new message", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range genHeaderTests {
t.Run(tt.name, func(t *testing.T) {
//goland:noinspection GoDeprecation
message.SetHeaderPreformatted(tt.header, "test")
value, ok := message.preformHeader[tt.header]
if !ok {
t.Fatalf("failed to set header, genHeader field for %s is not set", tt.header)
}
if value != "test" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", tt.header,
value, "test")
}
})
}
})
}
func TestMsg_SetGenHeaderPreformatted(t *testing.T) {
t.Run("SetGenHeaderPreformatted on new message", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range genHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message.SetGenHeaderPreformatted(tt.header, "test")
value, ok := message.preformHeader[tt.header]
if !ok {
t.Fatalf("failed to set header, genHeader field for %s is not set", tt.header)
}
if value != "test" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", tt.header,
value, "test")
}
})
}
})
t.Run("SetGenHeaderPreformatted with empty preformHeader map", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.preformHeader = nil
message.SetGenHeaderPreformatted(HeaderSubject, "test")
value, ok := message.preformHeader[HeaderSubject]
if !ok {
t.Fatalf("failed to set header, genHeader field for %s is not set", HeaderSubject)
}
if value != "test" {
t.Errorf("failed to set header, genHeader value for %s is %s, want: %s", HeaderSubject,
value, "test")
}
})
}
func TestMsg_SetAddrHeader(t *testing.T) {
t.Run("SetAddrHeader with valid address without <>", func(t *testing.T) {
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.SetAddrHeader(tt.header, "toni.tester@example.com"); err != nil {
t.Fatalf("failed to set address header, err: %s", err)
}
checkAddrHeader(t, message, tt.header, "SetAddrHeader", 0, 1, "toni.tester@example.com", "")
})
}
})
t.Run("SetAddrHeader with valid address with <>", func(t *testing.T) {
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.SetAddrHeader(tt.header, "<toni.tester@example.com>"); err != nil {
t.Fatalf("failed to set address header, err: %s", err)
}
checkAddrHeader(t, message, tt.header, "SetAddrHeader", 0, 1, "toni.tester@example.com", "")
})
}
})
t.Run("SetAddrHeader with valid address and name", func(t *testing.T) {
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.SetAddrHeader(tt.header, fmt.Sprintf("%q <%s>", "Toni Tester",
"toni.tester@example.com")); err != nil {
t.Fatalf("failed to set address header, err: %s", err)
}
checkAddrHeader(t, message, tt.header, "SetAddrHeader", 0, 1,
"toni.tester@example.com", "Toni Tester")
})
}
})
t.Run("SetAddrHeader with multiple addresses", func(t *testing.T) {
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
// From must only have one address
if tt.header == HeaderFrom {
return
}
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.SetAddrHeader(tt.header, "toni.tester@example.com",
"tina.tester@example.com"); err != nil {
t.Fatalf("failed to set address header, err: %s", err)
}
checkAddrHeader(t, message, tt.header, "SetAddrHeader", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, tt.header, "SetAddrHeader", 1, 2, "tina.tester@example.com", "")
})
}
})
t.Run("SetAddrHeader with multiple addresses but from addresses should only return the first one", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.SetAddrHeader(HeaderFrom, "toni.tester@example.com",
"tina.tester@example.com"); err != nil {
t.Fatalf("failed to set address header, err: %s", err)
}
checkAddrHeader(t, message, HeaderFrom, "SetAddrHeader", 0, 1, "toni.tester@example.com", "")
})
t.Run("SetAddrHeader with addrHeader map is nil", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.addrHeader = nil
if err := message.SetAddrHeader(HeaderFrom, "toni.tester@example.com",
"tina.tester@example.com"); err != nil {
t.Fatalf("failed to set address header, err: %s", err)
}
checkAddrHeader(t, message, HeaderFrom, "SetAddrHeader", 0, 1, "toni.tester@example.com", "")
})
t.Run("SetAddrHeader with invalid address", func(t *testing.T) {
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.SetAddrHeader(HeaderFrom, "invalid"); err == nil {
t.Fatalf("SetAddrHeader with invalid address should fail")
}
})
}
})
}
func TestMsg_SetAddrHeaderIgnoreInvalid(t *testing.T) {
t.Run("SetAddrHeaderIgnoreInvalid with valid address without <>", func(t *testing.T) {
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetAddrHeaderIgnoreInvalid(tt.header, "toni.tester@example.com")
checkAddrHeader(t, message, tt.header, "SetAddrHeaderIgnoreInvalid", 0, 1,
"toni.tester@example.com", "")
})
}
})
t.Run("SetAddrHeaderIgnoreInvalid with valid address with <>", func(t *testing.T) {
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetAddrHeaderIgnoreInvalid(tt.header, "<toni.tester@example.com>")
checkAddrHeader(t, message, tt.header, "SetAddrHeaderIgnoreInvalid", 0, 1,
"toni.tester@example.com", "")
})
}
})
t.Run("SetAddrHeaderIgnoreInvalid with multiple valid addresses", func(t *testing.T) {
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
// From must only have one address
if tt.header == HeaderFrom {
return
}
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetAddrHeaderIgnoreInvalid(tt.header, "toni.tester@example.com",
"tina.tester@example.com")
checkAddrHeader(t, message, tt.header, "SetAddrHeaderIgnoreInvalid", 0, 2,
"toni.tester@example.com", "")
checkAddrHeader(t, message, tt.header, "SetAddrHeaderIgnoreInvalid", 1, 2,
"tina.tester@example.com", "")
})
}
})
t.Run("SetAddrHeaderIgnoreInvalid with multiple addresses valid and invalid", func(t *testing.T) {
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
// From must only have one address
if tt.header == HeaderFrom {
return
}
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetAddrHeaderIgnoreInvalid(tt.header, "toni.tester@example.com",
"invalid", "tina.tester@example.com")
checkAddrHeader(t, message, tt.header, "SetAddrHeaderIgnoreInvalid", 0, 2,
"toni.tester@example.com", "")
checkAddrHeader(t, message, tt.header, "SetAddrHeaderIgnoreInvalid", 1, 2,
"tina.tester@example.com", "")
})
}
})
t.Run("SetAddrHeaderIgnoreInvalid with addrHeader map is nil", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.addrHeader = nil
message.SetAddrHeaderIgnoreInvalid(HeaderFrom, "toni.tester@example.com", "tina.tester@example.com")
checkAddrHeader(t, message, HeaderFrom, "SetAddrHeaderIgnoreInvalid", 0, 1, "toni.tester@example.com", "")
})
t.Run("SetAddrHeaderIgnoreInvalid with invalid addresses only", func(t *testing.T) {
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetAddrHeaderIgnoreInvalid(HeaderTo, "invalid", "foo")
addresses, ok := message.addrHeader[HeaderTo]
if !ok {
t.Fatalf("failed to set address header, addrHeader field for %s is not set", HeaderTo)
}
if len(addresses) != 0 {
t.Fatalf("failed to set address header, addrHeader value count for To is: %d, want: 0",
len(addresses))
}
})
}
})
}
func TestMsg_EnvelopeFrom(t *testing.T) {
t.Run("EnvelopeFrom with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.EnvelopeFrom("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set envelope from: %s", err)
}
checkAddrHeader(t, message, HeaderEnvelopeFrom, "EnvelopeFrom", 0, 1, "toni.tester@example.com", "")
})
t.Run("EnvelopeFrom with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.EnvelopeFrom("invalid"); err == nil {
t.Fatalf("EnvelopeFrom should fail with invalid address")
}
})
t.Run("EnvelopeFrom with empty string should fail", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.EnvelopeFrom(""); err == nil {
t.Fatalf("EnvelopeFrom should fail with invalid address")
}
})
}
func TestMsg_EnvelopeFromFormat(t *testing.T) {
t.Run("EnvelopeFromFormat with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.EnvelopeFromFormat("Toni Tester", "toni.tester@example.com"); err != nil {
t.Fatalf("failed to set envelope From: %s", err)
}
checkAddrHeader(t, message, HeaderEnvelopeFrom, "FromFormat", 0, 1, "toni.tester@example.com", "Toni Tester")
})
t.Run("EnvelopeFromFormat with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.EnvelopeFromFormat("Toni Tester", "invalid"); err == nil {
t.Fatalf("EnvelopeFromFormat should fail with invalid address")
}
})
t.Run("EnvelopeFromFormat with empty string should fail", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.EnvelopeFromFormat("", ""); err == nil {
t.Fatalf("EnvelopeFromFormat should fail with invalid address")
}
})
}
func TestMsg_From(t *testing.T) {
t.Run("From with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.From("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set From: %s", err)
}
checkAddrHeader(t, message, HeaderFrom, "From", 0, 1, "toni.tester@example.com", "")
})
t.Run("From with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.From("invalid"); err == nil {
t.Fatalf("From should fail with invalid address")
}
})
t.Run("From with empty string should fail", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.From(""); err == nil {
t.Fatalf("From should fail with invalid address")
}
})
t.Run("From with different RFC5322 addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range rfc5322Test {
t.Run(tt.value, func(t *testing.T) {
err := message.From(tt.value)
if err != nil && tt.valid {
t.Errorf("From on address %s should succeed, but failed with: %s", tt.value, err)
}
if err == nil && !tt.valid {
t.Errorf("From on address %s should fail, but succeeded", tt.value)
}
})
}
})
}
func TestMsg_FromFormat(t *testing.T) {
t.Run("FromFormat with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.FromFormat("Toni Tester", "toni.tester@example.com"); err != nil {
t.Fatalf("failed to set From: %s", err)
}
checkAddrHeader(t, message, HeaderFrom, "FromFormat", 0, 1, "toni.tester@example.com", "Toni Tester")
})
t.Run("FromFormat with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.FromFormat("Toni Tester", "invalid"); err == nil {
t.Fatalf("FromFormat should fail with invalid address")
}
})
t.Run("FromFormat with empty string should fail", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.FromFormat("", ""); err == nil {
t.Fatalf("FromFormat should fail with invalid address")
}
})
}
func TestMsg_To(t *testing.T) {
t.Run("To with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set To: %s", err)
}
checkAddrHeader(t, message, HeaderTo, "To", 0, 1, "toni.tester@example.com", "")
})
t.Run("To with multiple valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set To: %s", err)
}
checkAddrHeader(t, message, HeaderTo, "To", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderTo, "To", 1, 2, "tina.tester@example.com", "")
})
t.Run("To with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("invalid"); err == nil {
t.Fatalf("To should fail with invalid address")
}
})
t.Run("To with empty string should fail", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To(""); err == nil {
t.Fatalf("To should fail with invalid address")
}
})
t.Run("To with different RFC5322 addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range rfc5322Test {
t.Run(tt.value, func(t *testing.T) {
err := message.To(tt.value)
if err != nil && tt.valid {
t.Errorf("To on address %s should succeed, but failed with: %s", tt.value, err)
}
if err == nil && !tt.valid {
t.Errorf("To on address %s should fail, but succeeded", tt.value)
}
})
}
})
}
func TestMsg_AddTo(t *testing.T) {
t.Run("AddTo with valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set To: %s", err)
}
if err := message.AddTo("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set additional To: %s", err)
}
checkAddrHeader(t, message, HeaderTo, "AddTo", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderTo, "AddTo", 1, 2, "tina.tester@example.com", "")
})
t.Run("AddTo with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set To: %s", err)
}
if err := message.AddTo("invalid"); err == nil {
t.Errorf("AddTo should fail with invalid address")
}
checkAddrHeader(t, message, HeaderTo, "AddTo", 0, 1, "toni.tester@example.com", "")
})
}
func TestMsg_AddToFormat(t *testing.T) {
t.Run("AddToFormat with valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set To: %s", err)
}
if err := message.AddToFormat("Tina Tester", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set additional To: %s", err)
}
checkAddrHeader(t, message, HeaderTo, "AddToFormat", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderTo, "AddToFormat", 1, 2, "tina.tester@example.com", "Tina Tester")
})
t.Run("AddToFormat with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set To: %s", err)
}
if err := message.AddToFormat("Invalid", "invalid"); err == nil {
t.Errorf("AddToFormat should fail with invalid address")
}
checkAddrHeader(t, message, HeaderTo, "AddToFormat", 0, 1, "toni.tester@example.com", "")
})
}
func TestMsg_ToIgnoreInvalid(t *testing.T) {
t.Run("ToIgnoreInvalid with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.ToIgnoreInvalid("toni.tester@example.com")
checkAddrHeader(t, message, HeaderTo, "ToIgnoreInvalid", 0, 1, "toni.tester@example.com", "")
})
t.Run("ToIgnoreInvalid with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.ToIgnoreInvalid("invalid")
addresses, ok := message.addrHeader[HeaderTo]
if !ok {
t.Fatalf("failed to set ToIgnoreInvalid, addrHeader field is not set")
}
if len(addresses) != 0 {
t.Fatalf("failed to set ToIgnoreInvalid, addrHeader value count is: %d, want: 0", len(addresses))
}
})
t.Run("ToIgnoreInvalid with valid and invalid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.ToIgnoreInvalid("toni.tester@example.com", "invalid", "tina.tester@example.com")
checkAddrHeader(t, message, HeaderTo, "ToIgnoreInvalid", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderTo, "ToIgnoreInvalid", 1, 2, "tina.tester@example.com", "")
})
}
func TestMsg_ToFromString(t *testing.T) {
t.Run("ToFromString with valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.ToFromString(`toni.tester@example.com,<tina.tester@example.com>`); err != nil {
t.Fatalf("failed to set ToFromString: %s", err)
}
checkAddrHeader(t, message, HeaderTo, "ToFromString", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderTo, "ToFromString", 1, 2, "tina.tester@example.com", "")
})
t.Run("ToFromString with valid addresses and empty fields", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.ToFromString(`toni.tester@example.com ,,<tina.tester@example.com>`); err != nil {
t.Fatalf("failed to set ToFromString: %s", err)
}
checkAddrHeader(t, message, HeaderTo, "ToFromString", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderTo, "ToFromString", 1, 2, "tina.tester@example.com", "")
})
}
func TestMsg_Cc(t *testing.T) {
t.Run("Cc with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set Cc: %s", err)
}
checkAddrHeader(t, message, HeaderCc, "Cc", 0, 1, "toni.tester@example.com", "")
})
t.Run("Cc with multiple valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set Cc: %s", err)
}
checkAddrHeader(t, message, HeaderCc, "Cc", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderCc, "Cc", 1, 2, "tina.tester@example.com", "")
})
t.Run("Cc with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("invalid"); err == nil {
t.Fatalf("Cc should fail with invalid address")
}
})
t.Run("Cc with empty string should fail", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc(""); err == nil {
t.Fatalf("Cc should fail with invalid address")
}
})
t.Run("Cc with different RFC5322 addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range rfc5322Test {
t.Run(tt.value, func(t *testing.T) {
err := message.Cc(tt.value)
if err != nil && tt.valid {
t.Errorf("Cc on address %s should succeed, but failed with: %s", tt.value, err)
}
if err == nil && !tt.valid {
t.Errorf("Cc on address %s should fail, but succeeded", tt.value)
}
})
}
})
}
func TestMsg_AddCc(t *testing.T) {
t.Run("AddCc with valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set Cc: %s", err)
}
if err := message.AddCc("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set additional Cc: %s", err)
}
checkAddrHeader(t, message, HeaderCc, "AddCc", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderCc, "AddCc", 1, 2, "tina.tester@example.com", "")
})
t.Run("AddCc with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set Cc: %s", err)
}
if err := message.AddCc("invalid"); err == nil {
t.Errorf("AddCc should fail with invalid address")
}
checkAddrHeader(t, message, HeaderCc, "AddCc", 0, 1, "toni.tester@example.com", "")
})
}
func TestMsg_AddCcFormat(t *testing.T) {
t.Run("AddCcFormat with valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set Cc: %s", err)
}
if err := message.AddCcFormat("Tina Tester", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set additional Cc: %s", err)
}
checkAddrHeader(t, message, HeaderCc, "AddCcFormat", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderCc, "AddCcFormat", 1, 2, "tina.tester@example.com", "Tina Tester")
})
t.Run("AddCcFormat with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set Cc: %s", err)
}
if err := message.AddCcFormat("Invalid", "invalid"); err == nil {
t.Errorf("AddCcFormat should fail with invalid address")
}
checkAddrHeader(t, message, HeaderCc, "AddCcFormat", 0, 1, "toni.tester@example.com", "")
})
}
func TestMsg_CcIgnoreInvalid(t *testing.T) {
t.Run("CcIgnoreInvalid with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.CcIgnoreInvalid("toni.tester@example.com")
checkAddrHeader(t, message, HeaderCc, "CcIgnoreInvalid", 0, 1, "toni.tester@example.com", "")
})
t.Run("CcIgnoreInvalid with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.CcIgnoreInvalid("invalid")
addresses, ok := message.addrHeader[HeaderCc]
if !ok {
t.Fatalf("failed to set CcIgnoreInvalid, addrHeader field is not set")
}
if len(addresses) != 0 {
t.Fatalf("failed to set CcIgnoreInvalid, addrHeader value count is: %d, want: 0", len(addresses))
}
})
t.Run("CcIgnoreInvalid with valid and invalid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.CcIgnoreInvalid("toni.tester@example.com", "invalid", "tina.tester@example.com")
checkAddrHeader(t, message, HeaderCc, "CcIgnoreInvalid", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderCc, "CcIgnoreInvalid", 1, 2, "tina.tester@example.com", "")
})
}
func TestMsg_CcFromString(t *testing.T) {
t.Run("CcFromString with valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.CcFromString(`toni.tester@example.com,<tina.tester@example.com>`); err != nil {
t.Fatalf("failed to set CcFromString: %s", err)
}
checkAddrHeader(t, message, HeaderCc, "CcFromString", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderCc, "CcFromString", 1, 2, "tina.tester@example.com", "")
})
t.Run("CcFromString with valid addresses and empty fields", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.CcFromString(`toni.tester@example.com ,,<tina.tester@example.com>`); err != nil {
t.Fatalf("failed to set CcFromString: %s", err)
}
checkAddrHeader(t, message, HeaderCc, "CcFromString", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderCc, "CcFromString", 1, 2, "tina.tester@example.com", "")
})
}
func TestMsg_Bcc(t *testing.T) {
t.Run("Bcc with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set Bcc: %s", err)
}
checkAddrHeader(t, message, HeaderBcc, "Bcc", 0, 1, "toni.tester@example.com", "")
})
t.Run("Bcc with multiple valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("toni.tester@example.com", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set Bcc: %s", err)
}
checkAddrHeader(t, message, HeaderBcc, "Bcc", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderBcc, "Bcc", 1, 2, "tina.tester@example.com", "")
})
t.Run("Bcc with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("invalid"); err == nil {
t.Fatalf("Bcc should fail with invalid address")
}
})
t.Run("Bcc with empty string should fail", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc(""); err == nil {
t.Fatalf("Bcc should fail with invalid address")
}
})
t.Run("Bcc with different RFC5322 addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range rfc5322Test {
t.Run(tt.value, func(t *testing.T) {
err := message.Bcc(tt.value)
if err != nil && tt.valid {
t.Errorf("Bcc on address %s should succeed, but failed with: %s", tt.value, err)
}
if err == nil && !tt.valid {
t.Errorf("Bcc on address %s should fail, but succeeded", tt.value)
}
})
}
})
}
func TestMsg_AddBcc(t *testing.T) {
t.Run("AddBcc with valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set Bcc: %s", err)
}
if err := message.AddBcc("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set additional Bcc: %s", err)
}
checkAddrHeader(t, message, HeaderBcc, "AddBcc", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderBcc, "AddBcc", 1, 2, "tina.tester@example.com", "")
})
t.Run("AddBcc with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set Bcc: %s", err)
}
if err := message.AddBcc("invalid"); err == nil {
t.Errorf("AddBcc should fail with invalid address")
}
checkAddrHeader(t, message, HeaderBcc, "AddBcc", 0, 1, "toni.tester@example.com", "")
})
}
func TestMsg_AddBccFormat(t *testing.T) {
t.Run("AddBccFormat with valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set Bcc: %s", err)
}
if err := message.AddBccFormat("Tina Tester", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set additional Bcc: %s", err)
}
checkAddrHeader(t, message, HeaderBcc, "AddBccFormat", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderBcc, "AddBccFormat", 1, 2, "tina.tester@example.com", "Tina Tester")
})
t.Run("AddBccFormat with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set Bcc: %s", err)
}
if err := message.AddBccFormat("Invalid", "invalid"); err == nil {
t.Errorf("AddBccFormat should fail with invalid address")
}
checkAddrHeader(t, message, HeaderBcc, "AddBccFormat", 0, 1, "toni.tester@example.com", "")
})
}
func TestMsg_BccIgnoreInvalid(t *testing.T) {
t.Run("BccIgnoreInvalid with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.BccIgnoreInvalid("toni.tester@example.com")
checkAddrHeader(t, message, HeaderBcc, "BccIgnoreInvalid", 0, 1, "toni.tester@example.com", "")
})
t.Run("BccIgnoreInvalid with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.BccIgnoreInvalid("invalid")
addresses, ok := message.addrHeader[HeaderBcc]
if !ok {
t.Fatalf("failed to set BccIgnoreInvalid, addrHeader field is not set")
}
if len(addresses) != 0 {
t.Fatalf("failed to set BccIgnoreInvalid, addrHeader value count is: %d, want: 0", len(addresses))
}
})
t.Run("BccIgnoreInvalid with valid and invalid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.BccIgnoreInvalid("toni.tester@example.com", "invalid", "tina.tester@example.com")
checkAddrHeader(t, message, HeaderBcc, "BccIgnoreInvalid", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderBcc, "BccIgnoreInvalid", 1, 2, "tina.tester@example.com", "")
})
}
func TestMsg_BccFromString(t *testing.T) {
t.Run("BccFromString with valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.BccFromString(`toni.tester@example.com,<tina.tester@example.com>`); err != nil {
t.Fatalf("failed to set BccFromString: %s", err)
}
checkAddrHeader(t, message, HeaderBcc, "BccFromString", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderBcc, "BccFromString", 1, 2, "tina.tester@example.com", "")
})
t.Run("BccFromString with valid addresses and empty fields", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.BccFromString(`toni.tester@example.com ,,<tina.tester@example.com>`); err != nil {
t.Fatalf("failed to set BccFromString: %s", err)
}
checkAddrHeader(t, message, HeaderBcc, "BccFromString", 0, 2, "toni.tester@example.com", "")
checkAddrHeader(t, message, HeaderBcc, "BccFromString", 1, 2, "tina.tester@example.com", "")
})
}
func TestMsg_ReplyTo(t *testing.T) {
t.Run("ReplyTo with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.ReplyTo("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set ReplyTo: %s", err)
}
checkGenHeader(t, message, HeaderReplyTo, "ReplyTo", 0, 1, "<toni.tester@example.com>")
})
t.Run("ReplyTo with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.ReplyTo("invalid"); err == nil {
t.Fatalf("ReplyTo should fail with invalid address")
}
})
t.Run("ReplyTo with empty string should fail", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.ReplyTo(""); err == nil {
t.Fatalf("ReplyTo should fail with invalid address")
}
})
t.Run("ReplyTo with different RFC5322 addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range rfc5322Test {
t.Run(tt.value, func(t *testing.T) {
err := message.ReplyTo(tt.value)
if err != nil && tt.valid {
t.Errorf("ReplyTo on address %s should succeed, but failed with: %s", tt.value, err)
}
if err == nil && !tt.valid {
t.Errorf("ReplyTo on address %s should fail, but succeeded", tt.value)
}
})
}
})
}
func TestMsg_ReplyToFormat(t *testing.T) {
t.Run("ReplyToFormat with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.ReplyToFormat("Tina Tester", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set ReplyTo: %s", err)
}
checkGenHeader(t, message, HeaderReplyTo, "ReplyToFormat", 0, 1, `"Tina Tester" <tina.tester@example.com>`)
})
t.Run("ReplyToFormat with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.ReplyToFormat("Invalid", "invalid"); err == nil {
t.Errorf("ReplyToFormat should fail with invalid address")
}
})
}
func TestMsg_Subject(t *testing.T) {
tests := []struct {
name string
subject string
want string
}{
{"Normal latin characters", "Hello world!", "Hello world!"},
{"Empty string", "", ""},
{
"European umlaut characters", "Héllô wörld! äöüß",
"=?UTF-8?q?H=C3=A9ll=C3=B4_w=C3=B6rld!_=C3=A4=C3=B6=C3=BC=C3=9F?=",
},
{
"Japanese characters", `これはテスト対象です。`,
`=?UTF-8?q?=E3=81=93=E3=82=8C=E3=81=AF=E3=83=86=E3=82=B9=E3=83=88=E5=AF=BE?= ` +
`=?UTF-8?q?=E8=B1=A1=E3=81=A7=E3=81=99=E3=80=82?=`,
},
{
"Simplified chinese characters", `这是一个测试主题`,
`=?UTF-8?q?=E8=BF=99=E6=98=AF=E4=B8=80=E4=B8=AA=E6=B5=8B=E8=AF=95=E4=B8=BB?= ` +
`=?UTF-8?q?=E9=A2=98?=`,
},
{
"Cyrillic characters", `Это испытуемый`,
`=?UTF-8?q?=D0=AD=D1=82=D0=BE_=D0=B8=D1=81=D0=BF=D1=8B=D1=82=D1=83=D0=B5?= ` +
`=?UTF-8?q?=D0=BC=D1=8B=D0=B9?=`,
},
{"Emoji characters", `New Offer 🚀`, `=?UTF-8?q?New_Offer_=F0=9F=9A=80?=`},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.Subject(tt.subject)
checkGenHeader(t, message, HeaderSubject, "Subject", 0, 1, tt.want)
})
}
}
func TestMsg_SetMessageID(t *testing.T) {
t.Run("SetMessageID randomness", func(t *testing.T) {
var mids []string
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for i := 0; i < 50_000; i++ {
message.SetMessageID()
mid := message.GetMessageID()
mids = append(mids, mid)
}
c := make(map[string]int)
for i := range mids {
c[mids[i]]++
}
for k, v := range c {
if v > 1 {
t.Errorf("MessageID randomness not given. MessageID %q was generated %d times", k, v)
}
}
})
}
func TestMsg_GetMessageID(t *testing.T) {
t.Run("GetMessageID with normal IDs", func(t *testing.T) {
tests := []struct {
msgid string
want string
}{
{"this.is.a.test", "<this.is.a.test>"},
{"12345.6789@domain.com", "<12345.6789@domain.com>"},
{"abcd1234@sub.domain.com", "<abcd1234@sub.domain.com>"},
{"uniqeID-123@domain.co.tld", "<uniqeID-123@domain.co.tld>"},
{"2024_10_26192300@domain.tld", "<2024_10_26192300@domain.tld>"},
}
for _, tt := range tests {
t.Run(tt.msgid, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetMessageIDWithValue(tt.msgid)
msgid := message.GetMessageID()
if !strings.EqualFold(tt.want, msgid) {
t.Errorf("GetMessageID() failed. Want: %s, got: %s", tt.want, msgid)
}
})
}
})
t.Run("GetMessageID no messageID set should return an empty string", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
msgid := message.GetMessageID()
if msgid != "" {
t.Errorf("GetMessageID() failed. Want: empty string, got: %s", msgid)
}
})
}
func TestMsg_SetMessageIDWithValue(t *testing.T) {
// We have already covered SetMessageIDWithValue in SetMessageID and GetMessageID
t.Log("SetMessageIDWithValue is fully covered by TestMsg_GetMessageID")
}
func TestMsg_SetBulk(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBulk()
checkGenHeader(t, message, HeaderPrecedence, "SetBulk", 0, 1, "bulk")
checkGenHeader(t, message, HeaderXAutoResponseSuppress, "Bulk", 0, 1, "All")
}
func TestMsg_SetDate(t *testing.T) {
t.Run("SetDate and compare date down to the minute", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetDate()
values, ok := message.genHeader[HeaderDate]
if !ok {
t.Fatal("failed to set SetDate, genHeader field is not set")
}
if len(values) != 1 {
t.Fatalf("failed to set SetDate, genHeader value count is: %d, want: %d", len(values), 1)
}
date := values[0]
parsed, err := time.Parse(time.RFC1123Z, date)
if err != nil {
t.Fatalf("SetDate failed, failed to parse retrieved date: %s, error: %s", date, err)
}
now := time.Now()
nowNoSec := time.Date(now.Year(), now.Month(), now.Day(), now.Hour(), now.Minute(), 0, 0, now.Location())
parsedNoSec := time.Date(parsed.Year(), parsed.Month(), parsed.Day(), parsed.Hour(), parsed.Minute(),
0, 0, parsed.Location())
if !nowNoSec.Equal(parsedNoSec) {
t.Errorf("SetDate failed, retrieved date mismatch, got: %s, want: %s", parsedNoSec.String(),
nowNoSec.String())
}
})
}
func TestMsg_SetDateWithValue(t *testing.T) {
t.Run("SetDateWithValue and compare date down to the second", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
now := time.Now()
message.SetDateWithValue(now)
values, ok := message.genHeader[HeaderDate]
if !ok {
t.Fatal("failed to set SetDate, genHeader field is not set")
}
if len(values) != 1 {
t.Fatalf("failed to set SetDate, genHeader value count is: %d, want: %d", len(values), 1)
}
date := values[0]
parsed, err := time.Parse(time.RFC1123Z, date)
if err != nil {
t.Fatalf("SetDate failed, failed to parse retrieved date: %s, error: %s", date, err)
}
if !strings.EqualFold(parsed.Format(time.RFC1123Z), now.Format(time.RFC1123Z)) {
t.Errorf("SetDate failed, retrieved date mismatch, got: %s, want: %s", now.Format(time.RFC1123Z),
parsed.Format(time.RFC1123Z))
}
})
}
func TestMsg_SetImportance(t *testing.T) {
tests := []struct {
name string
importance Importance
}{
{"Non-Urgent", ImportanceNonUrgent},
{"Low", ImportanceLow},
{"Normal", ImportanceNormal},
{"High", ImportanceHigh},
{"Urgent", ImportanceUrgent},
{"Unknown", 9},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetImportance(tt.importance)
if tt.importance == ImportanceNormal {
t.Log("ImportanceNormal is does currently not set any values")
return
}
checkGenHeader(t, message, HeaderImportance, "SetImportance", 0, 1, tt.importance.String())
checkGenHeader(t, message, HeaderPriority, "SetImportance", 0, 1, tt.importance.NumString())
checkGenHeader(t, message, HeaderXPriority, "SetImportance", 0, 1, tt.importance.XPrioString())
checkGenHeader(t, message, HeaderXMSMailPriority, "SetImportance", 0, 1, tt.importance.NumString())
})
}
}
func TestMsg_SetOrganization(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetOrganization("ACME Inc.")
checkGenHeader(t, message, HeaderOrganization, "SetOrganization", 0, 1, "ACME Inc.")
}
func TestMsg_SetUserAgent(t *testing.T) {
t.Run("SetUserAgent with value", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetUserAgent("go-mail test suite")
checkGenHeader(t, message, HeaderUserAgent, "SetUserAgent", 0, 1, "go-mail test suite")
checkGenHeader(t, message, HeaderXMailer, "SetUserAgent", 0, 1, "go-mail test suite")
})
t.Run("Message without SetUserAgent should provide default agent", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
want := fmt.Sprintf("go-mail v%s // https://github.com/wneessen/go-mail", VERSION)
message.checkUserAgent()
checkGenHeader(t, message, HeaderUserAgent, "SetUserAgent", 0, 1, want)
checkGenHeader(t, message, HeaderXMailer, "SetUserAgent", 0, 1, want)
})
}
func TestMsg_IsDelivered(t *testing.T) {
t.Run("IsDelivered on unsent message", func(t *testing.T) {
message := testMessage(t)
if message.IsDelivered() {
t.Error("IsDelivered on unsent message should return false")
}
})
t.Run("IsDelivered on sent message", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
PortAdder.Add(1)
serverPort := int(TestServerPortBase + PortAdder.Load())
featureSet := "250-8BITMIME\r\n250-DSN\r\n250 SMTPUTF8"
go func() {
if err := simpleSMTPServer(ctx, t, &serverProps{
FeatureSet: featureSet,
ListenPort: serverPort,
}); err != nil {
t.Errorf("failed to start test server: %s", err)
return
}
}()
time.Sleep(time.Millisecond * 30)
client, err := NewClient(DefaultHost, WithPort(serverPort), WithTLSPolicy(NoTLS))
if err != nil {
t.Fatalf("failed to create new client: %s", err)
}
message := testMessage(t)
if err = client.DialAndSend(message); err != nil {
var netErr net.Error
if errors.As(err, &netErr) && netErr.Timeout() {
t.Skip("failed to connect to the test server due to timeout")
}
t.Fatalf("failed to connect to test server: %s", err)
}
t.Cleanup(func() {
if err := client.Close(); err != nil {
t.Errorf("failed to close client: %s", err)
}
})
if !message.IsDelivered() {
t.Error("IsDelivered on sent message should return true")
}
})
t.Run("IsDelivered on failed message delivery (DATA close)", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
PortAdder.Add(1)
serverPort := int(TestServerPortBase + PortAdder.Load())
featureSet := "250-8BITMIME\r\n250-DSN\r\n250 SMTPUTF8"
go func() {
if err := simpleSMTPServer(ctx, t, &serverProps{
FailOnDataClose: true,
FeatureSet: featureSet,
ListenPort: serverPort,
}); err != nil {
t.Errorf("failed to start test server: %s", err)
return
}
}()
time.Sleep(time.Millisecond * 30)
client, err := NewClient(DefaultHost, WithPort(serverPort), WithTLSPolicy(NoTLS))
if err != nil {
t.Fatalf("failed to create new client: %s", err)
}
message := testMessage(t)
if err = client.DialAndSend(message); err == nil {
t.Error("message delivery was supposed to fail on data close")
}
if message.IsDelivered() {
t.Error("IsDelivered on failed message delivery should return false")
}
})
t.Run("IsDelivered on failed message delivery (final RESET)", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
PortAdder.Add(1)
serverPort := int(TestServerPortBase + PortAdder.Load())
featureSet := "250-8BITMIME\r\n250-DSN\r\n250 SMTPUTF8"
go func() {
if err := simpleSMTPServer(ctx, t, &serverProps{
FailOnReset: true,
FeatureSet: featureSet,
ListenPort: serverPort,
}); err != nil {
t.Errorf("failed to start test server: %s", err)
return
}
}()
time.Sleep(time.Millisecond * 30)
client, err := NewClient(DefaultHost, WithPort(serverPort), WithTLSPolicy(NoTLS))
if err != nil {
t.Fatalf("failed to create new client: %s", err)
}
message := testMessage(t)
if err = client.DialAndSend(message); err == nil {
t.Error("message delivery was supposed to fail on data close")
}
if !message.IsDelivered() {
t.Error("IsDelivered on sent message should return true")
}
})
}
func TestMsg_RequestMDNTo(t *testing.T) {
t.Run("RequestMDNTo with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.RequestMDNTo("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set RequestMDNTo: %s", err)
}
checkGenHeader(t, message, HeaderDispositionNotificationTo, "RequestMDNTo", 0, 1, "<toni.tester@example.com>")
})
t.Run("RequestMDNTo with valid address and nil-genHeader", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.genHeader = nil
if err := message.RequestMDNTo("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set RequestMDNTo: %s", err)
}
checkGenHeader(t, message, HeaderDispositionNotificationTo, "RequestMDNTo", 0, 1, "<toni.tester@example.com>")
})
t.Run("RequestMDNTo with multiple valid addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.RequestMDNTo("toni.tester@example.com", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set RequestMDNTo: %s", err)
}
checkGenHeader(t, message, HeaderDispositionNotificationTo, "RequestMDNTo", 0, 2, "<toni.tester@example.com>")
checkGenHeader(t, message, HeaderDispositionNotificationTo, "RequestMDNTo", 1, 2, "<tina.tester@example.com>")
})
t.Run("RequestMDNTo with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.RequestMDNTo("invalid"); err == nil {
t.Fatalf("RequestMDNTo should fail with invalid address")
}
})
t.Run("RequestMDNTo with empty string should fail", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.RequestMDNTo(""); err == nil {
t.Fatalf("RequestMDNTo should fail with invalid address")
}
})
t.Run("RequestMDNTo with different RFC5322 addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range rfc5322Test {
t.Run(tt.value, func(t *testing.T) {
err := message.RequestMDNTo(tt.value)
if err != nil && tt.valid {
t.Errorf("RequestMDNTo on address %s should succeed, but failed with: %s", tt.value, err)
}
if err == nil && !tt.valid {
t.Errorf("RequestMDNTo on address %s should fail, but succeeded", tt.value)
}
})
}
})
}
func TestMsg_RequestMDNToFormat(t *testing.T) {
t.Run("RequestMDNToFormat with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.RequestMDNToFormat("Toni Tester", "toni.tester@example.com"); err != nil {
t.Fatalf("failed to set RequestMDNToFormat: %s", err)
}
checkGenHeader(t, message, HeaderDispositionNotificationTo, "RequestMDNToFormat", 0, 1,
`"Toni Tester" <toni.tester@example.com>`)
})
t.Run("RequestMDNToFormat with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.RequestMDNToFormat("invalid", "invalid"); err == nil {
t.Fatalf("RequestMDNToFormat should fail with invalid address")
}
})
}
func TestMsg_RequestMDNAddTo(t *testing.T) {
t.Run("RequestMDNAddTo with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.RequestMDNTo("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set RequestMDNTo: %s", err)
}
if err := message.RequestMDNAddTo("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set RequestMDNAddTo: %s", err)
}
checkGenHeader(t, message, HeaderDispositionNotificationTo, "RequestMDNAddTo", 0, 2,
`<toni.tester@example.com>`)
checkGenHeader(t, message, HeaderDispositionNotificationTo, "RequestMDNAddTo", 1, 2,
`<tina.tester@example.com>`)
})
t.Run("RequestMDNAddTo with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.RequestMDNTo("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set RequestMDNTo: %s", err)
}
if err := message.RequestMDNAddTo("invalid"); err == nil {
t.Errorf("RequestMDNAddTo should fail with invalid address")
}
checkGenHeader(t, message, HeaderDispositionNotificationTo, "RequestMDNAddTo", 0, 1,
`<toni.tester@example.com>`)
})
}
func TestMsg_RequestMDNAddToFormat(t *testing.T) {
t.Run("RequestMDNAddToFormat with valid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.RequestMDNTo("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set RequestMDNTo: %s", err)
}
if err := message.RequestMDNAddToFormat("Tina Tester", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set RequestMDNAddToFormat: %s", err)
}
checkGenHeader(t, message, HeaderDispositionNotificationTo, "RequestMDNAddToFormat", 0, 2,
`<toni.tester@example.com>`)
checkGenHeader(t, message, HeaderDispositionNotificationTo, "RequestMDNAddToFormat", 1, 2,
`"Tina Tester" <tina.tester@example.com>`)
})
t.Run("RequestMDNAddToFormat with invalid address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.RequestMDNTo("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set RequestMDNTo: %s", err)
}
if err := message.RequestMDNAddToFormat("invalid", "invalid"); err == nil {
t.Errorf("RequestMDNAddToFormat should fail with invalid address")
}
checkGenHeader(t, message, HeaderDispositionNotificationTo, "RequestMDNAddToFormat", 0, 1,
`<toni.tester@example.com>`)
})
}
func TestMsg_GetSender(t *testing.T) {
t.Run("GetSender with envelope from only (no full address)", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.EnvelopeFrom("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set envelope from address: %s", err)
}
sender, err := message.GetSender(false)
if err != nil {
t.Errorf("failed to get sender: %s", err)
}
if !strings.EqualFold(sender, "toni.tester@example.com") {
t.Errorf("expected sender not returned. Want: %s, got: %s", "toni.tester@example.com", sender)
}
})
t.Run("GetSender with envelope from only (full address)", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.EnvelopeFrom("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set envelope from address: %s", err)
}
sender, err := message.GetSender(true)
if err != nil {
t.Errorf("failed to get sender: %s", err)
}
if !strings.EqualFold(sender, "<toni.tester@example.com>") {
t.Errorf("expected sender not returned. Want: %s, got: %s", "<toni.tester@example.com>", sender)
}
})
t.Run("GetSender with from only (no full address)", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.From("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
sender, err := message.GetSender(false)
if err != nil {
t.Errorf("failed to get sender: %s", err)
}
if !strings.EqualFold(sender, "toni.tester@example.com") {
t.Errorf("expected sender not returned. Want: %s, got: %s", "toni.tester@example.com", sender)
}
})
t.Run("GetSender with from only (full address)", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.From("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
sender, err := message.GetSender(true)
if err != nil {
t.Errorf("failed to get sender: %s", err)
}
if !strings.EqualFold(sender, "<toni.tester@example.com>") {
t.Errorf("expected sender not returned. Want: %s, got: %s", "<toni.tester@example.com>", sender)
}
})
t.Run("GetSender with envelope from and from (no full address)", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.EnvelopeFrom("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set envelope from address: %s", err)
}
if err := message.From("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
sender, err := message.GetSender(false)
if err != nil {
t.Errorf("failed to get sender: %s", err)
}
if !strings.EqualFold(sender, "toni.tester@example.com") {
t.Errorf("expected sender not returned. Want: %s, got: %s", "toni.tester@example.com", sender)
}
})
t.Run("GetSender with envelope from and from (full address)", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.EnvelopeFrom("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set envelope from address: %s", err)
}
if err := message.From("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
sender, err := message.GetSender(true)
if err != nil {
t.Errorf("failed to get sender: %s", err)
}
if !strings.EqualFold(sender, "<toni.tester@example.com>") {
t.Errorf("expected sender not returned. Want: %s, got: %s", "<toni.tester@example.com>", sender)
}
})
t.Run("GetSender with no envelope from or from", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
_, err := message.GetSender(false)
if err == nil {
t.Errorf("GetSender with no envelope from or from should return error")
}
if !errors.Is(err, ErrNoFromAddress) {
t.Errorf("GetSender with no envelope from or from should return error. Want: %s, got: %s",
ErrNoFromAddress, err)
}
})
}
func TestMsg_GetRecipients(t *testing.T) {
t.Run("GetRecipients with only to", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set to address: %s", err)
}
rcpts, err := message.GetRecipients()
if err != nil {
t.Errorf("failed to get recipients: %s", err)
}
if len(rcpts) != 1 {
t.Fatalf("expected 1 recipient, got: %d", len(rcpts))
}
if !strings.EqualFold(rcpts[0], "toni.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"toni.tester@example.com", rcpts[0])
}
})
t.Run("GetRecipients with only cc", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set cc address: %s", err)
}
rcpts, err := message.GetRecipients()
if err != nil {
t.Errorf("failed to get recipients: %s", err)
}
if len(rcpts) != 1 {
t.Fatalf("expected 1 recipient, got: %d", len(rcpts))
}
if !strings.EqualFold(rcpts[0], "toni.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"toni.tester@example.com", rcpts[0])
}
})
t.Run("GetRecipients with only bcc", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set bcc address: %s", err)
}
rcpts, err := message.GetRecipients()
if err != nil {
t.Errorf("failed to get recipients: %s", err)
}
if len(rcpts) != 1 {
t.Fatalf("expected 1 recipient, got: %d", len(rcpts))
}
if !strings.EqualFold(rcpts[0], "toni.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"toni.tester@example.com", rcpts[0])
}
})
t.Run("GetRecipients with to and cc", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set to address: %s", err)
}
if err := message.Cc("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set cc address: %s", err)
}
rcpts, err := message.GetRecipients()
if err != nil {
t.Errorf("failed to get recipients: %s", err)
}
if len(rcpts) != 2 {
t.Fatalf("expected 2 recipient, got: %d", len(rcpts))
}
if !strings.EqualFold(rcpts[0], "toni.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"toni.tester@example.com", rcpts[0])
}
if !strings.EqualFold(rcpts[1], "tina.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"tina.tester@example.com", rcpts[1])
}
})
t.Run("GetRecipients with to and bcc", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set to address: %s", err)
}
if err := message.Bcc("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set bcc address: %s", err)
}
rcpts, err := message.GetRecipients()
if err != nil {
t.Errorf("failed to get recipients: %s", err)
}
if len(rcpts) != 2 {
t.Fatalf("expected 2 recipient, got: %d", len(rcpts))
}
if !strings.EqualFold(rcpts[0], "toni.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"toni.tester@example.com", rcpts[0])
}
if !strings.EqualFold(rcpts[1], "tina.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"tina.tester@example.com", rcpts[1])
}
})
t.Run("GetRecipients with cc and bcc", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set cc address: %s", err)
}
if err := message.Bcc("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set bcc address: %s", err)
}
rcpts, err := message.GetRecipients()
if err != nil {
t.Errorf("failed to get recipients: %s", err)
}
if len(rcpts) != 2 {
t.Fatalf("expected 2 recipient, got: %d", len(rcpts))
}
if !strings.EqualFold(rcpts[0], "toni.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"toni.tester@example.com", rcpts[0])
}
if !strings.EqualFold(rcpts[1], "tina.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"tina.tester@example.com", rcpts[1])
}
})
t.Run("GetRecipients with to, cc and bcc", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set to address: %s", err)
}
if err := message.Cc("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set cc address: %s", err)
}
if err := message.Bcc("tom.tester@example.com"); err != nil {
t.Fatalf("failed to set bcc address: %s", err)
}
rcpts, err := message.GetRecipients()
if err != nil {
t.Errorf("failed to get recipients: %s", err)
}
if len(rcpts) != 3 {
t.Fatalf("expected 3 recipient, got: %d", len(rcpts))
}
if !strings.EqualFold(rcpts[0], "toni.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"toni.tester@example.com", rcpts[0])
}
if !strings.EqualFold(rcpts[1], "tina.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"tina.tester@example.com", rcpts[1])
}
if !strings.EqualFold(rcpts[2], "tom.tester@example.com") {
t.Errorf("expected recipient not returned. Want: %s, got: %s",
"tina.tester@example.com", rcpts[2])
}
})
t.Run("GetRecipients with no recipients", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
_, err := message.GetRecipients()
if err == nil {
t.Errorf("expected error, got nil")
}
if !errors.Is(err, ErrNoRcptAddresses) {
t.Errorf("expected ErrNoRcptAddresses, got: %s", err)
}
})
}
func TestMsg_GetAddrHeader(t *testing.T) {
t.Run("GetAddrHeader with valid address (from)", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.From("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set header: %s", err)
}
addrheader := message.GetAddrHeader(HeaderFrom)
if len(addrheader) != 1 {
t.Errorf("expected 1 address, got: %d", len(addrheader))
}
if addrheader[0] == nil {
t.Fatalf("expected address, got nil")
}
if addrheader[0].String() != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addrheader[0].String())
}
})
t.Run("GetAddrHeader with valid address (to, cc, bcc)", func(t *testing.T) {
var fn func(...string) error
for _, tt := range addrHeaderTests {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
switch tt.header {
case HeaderFrom:
continue
case HeaderTo:
fn = message.To
case HeaderCc:
fn = message.Cc
case HeaderBcc:
fn = message.Bcc
default:
t.Logf("header %s not supported", tt.header)
continue
}
t.Run(tt.name, func(t *testing.T) {
if err := fn("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set header: %s", err)
}
addrheader := message.GetAddrHeader(tt.header)
if len(addrheader) != 1 {
t.Errorf("expected 1 address, got: %d", len(addrheader))
}
if addrheader[0] == nil {
t.Fatalf("expected address, got nil")
}
if addrheader[0].String() != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addrheader[0].String())
}
})
}
})
t.Run("GetAddrHeader with multiple valid address (to, cc, bcc)", func(t *testing.T) {
var fn func(...string) error
var addfn func(string) error
for _, tt := range addrHeaderTests {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
switch tt.header {
case HeaderFrom:
continue
case HeaderTo:
fn = message.To
addfn = message.AddTo
case HeaderCc:
fn = message.Cc
addfn = message.AddCc
case HeaderBcc:
fn = message.Bcc
addfn = message.AddBcc
default:
t.Logf("header %s not supported", tt.header)
continue
}
t.Run(tt.name, func(t *testing.T) {
if err := fn("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set header: %s", err)
}
if err := addfn("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set additional header value: %s", err)
}
addrheader := message.GetAddrHeader(tt.header)
if len(addrheader) != 2 {
t.Errorf("expected 1 address, got: %d", len(addrheader))
}
if addrheader[0] == nil {
t.Fatalf("expected address, got nil")
}
if addrheader[0].String() != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addrheader[0].String())
}
if addrheader[1] == nil {
t.Fatalf("expected address, got nil")
}
if addrheader[1].String() != "<tina.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<tina.tester@example.com>", addrheader[1].String())
}
})
}
})
t.Run("GetAddrHeader with no addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
addrheader := message.GetAddrHeader(HeaderFrom)
if len(addrheader) != 0 {
t.Errorf("expected 0 address, got: %d", len(addrheader))
}
})
}
})
}
func TestMsg_GetAddrHeaderString(t *testing.T) {
t.Run("GetAddrHeaderString with valid address (from)", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.From("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set header: %s", err)
}
addrheader := message.GetAddrHeaderString(HeaderFrom)
if len(addrheader) != 1 {
t.Errorf("expected 1 address, got: %d", len(addrheader))
}
if addrheader[0] == "" {
t.Fatalf("expected address, got empty string")
}
if addrheader[0] != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addrheader[0])
}
})
t.Run("GetAddrHeaderString with valid address (to, cc, bcc)", func(t *testing.T) {
var fn func(...string) error
for _, tt := range addrHeaderTests {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
switch tt.header {
case HeaderFrom:
continue
case HeaderTo:
fn = message.To
case HeaderCc:
fn = message.Cc
case HeaderBcc:
fn = message.Bcc
default:
t.Logf("header %s not supported", tt.header)
continue
}
t.Run(tt.name, func(t *testing.T) {
if err := fn("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set header: %s", err)
}
addrheader := message.GetAddrHeaderString(tt.header)
if len(addrheader) != 1 {
t.Errorf("expected 1 address, got: %d", len(addrheader))
}
if addrheader[0] == "" {
t.Fatalf("expected address, got empty string")
}
if addrheader[0] != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addrheader[0])
}
})
}
})
t.Run("GetAddrHeaderString with multiple valid address (to, cc, bcc)", func(t *testing.T) {
var fn func(...string) error
var addfn func(string) error
for _, tt := range addrHeaderTests {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
switch tt.header {
case HeaderFrom:
continue
case HeaderTo:
fn = message.To
addfn = message.AddTo
case HeaderCc:
fn = message.Cc
addfn = message.AddCc
case HeaderBcc:
fn = message.Bcc
addfn = message.AddBcc
default:
t.Logf("header %s not supported", tt.header)
continue
}
t.Run(tt.name, func(t *testing.T) {
if err := fn("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set header: %s", err)
}
if err := addfn("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set additional header value: %s", err)
}
addrheader := message.GetAddrHeaderString(tt.header)
if len(addrheader) != 2 {
t.Errorf("expected 1 address, got: %d", len(addrheader))
}
if addrheader[0] == "" {
t.Fatalf("expected address, got empty string")
}
if addrheader[0] != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addrheader[0])
}
if addrheader[1] == "" {
t.Fatalf("expected address, got nil")
}
if addrheader[1] != "<tina.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<tina.tester@example.com>", addrheader[1])
}
})
}
})
t.Run("GetAddrHeaderString with no addresses", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range addrHeaderTests {
t.Run(tt.name, func(t *testing.T) {
addrheader := message.GetAddrHeaderString(HeaderFrom)
if len(addrheader) != 0 {
t.Errorf("expected 0 address, got: %d", len(addrheader))
}
})
}
})
}
func TestMsg_GetFrom(t *testing.T) {
t.Run("GetFrom with address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.From("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetFrom()
if len(addresses) != 1 {
t.Fatalf("expected 1 address, got: %d", len(addresses))
}
if addresses[0] == nil {
t.Fatalf("expected address, got nil")
}
if addresses[0].String() != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0].String())
}
})
t.Run("GetFrom with no address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
addresses := message.GetFrom()
if len(addresses) != 0 {
t.Errorf("expected 0 address, got: %d", len(addresses))
}
})
}
func TestMsg_GetFromString(t *testing.T) {
t.Run("GetFromString with address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.From("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetFromString()
if len(addresses) != 1 {
t.Fatalf("expected 1 address, got: %d", len(addresses))
}
if addresses[0] == "" {
t.Fatalf("expected address, got nil")
}
if addresses[0] != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0])
}
})
t.Run("GetFromString with no address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
addresses := message.GetFromString()
if len(addresses) != 0 {
t.Errorf("expected 0 address, got: %d", len(addresses))
}
})
}
func TestMsg_GetTo(t *testing.T) {
t.Run("GetTo with address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetTo()
if len(addresses) != 1 {
t.Fatalf("expected 1 address, got: %d", len(addresses))
}
if addresses[0] == nil {
t.Fatalf("expected address, got nil")
}
if addresses[0].String() != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0].String())
}
})
t.Run("GetTo with multiple address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetTo()
if len(addresses) != 2 {
t.Fatalf("expected 2 address, got: %d", len(addresses))
}
if addresses[0] == nil {
t.Fatalf("expected address, got nil")
}
if addresses[0].String() != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0].String())
}
if addresses[1] == nil {
t.Fatalf("expected address, got nil")
}
if addresses[1].String() != "<tina.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<tina.tester@example.com>", addresses[1].String())
}
})
t.Run("GetTo with no address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
addresses := message.GetTo()
if len(addresses) != 0 {
t.Errorf("expected 0 address, got: %d", len(addresses))
}
})
}
func TestMsg_GetToString(t *testing.T) {
t.Run("GetToString with address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetToString()
if len(addresses) != 1 {
t.Fatalf("expected 1 address, got: %d", len(addresses))
}
if addresses[0] == "" {
t.Fatalf("expected address, got nil")
}
if addresses[0] != "<toni.tester@example.com>" {
t.Errorf("GetToString: expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0])
}
})
t.Run("GetToString with multiple address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.To("toni.tester@example.com", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetToString()
if len(addresses) != 2 {
t.Fatalf("expected 2 address, got: %d", len(addresses))
}
if addresses[0] == "" {
t.Fatalf("expected address, got nil")
}
if addresses[0] != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0])
}
if addresses[1] == "" {
t.Fatalf("expected address, got nil")
}
if addresses[1] != "<tina.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<tina.tester@example.com>", addresses[1])
}
})
t.Run("GetToString with no address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
addresses := message.GetToString()
if len(addresses) != 0 {
t.Errorf("expected 0 address, got: %d", len(addresses))
}
})
}
func TestMsg_GetCc(t *testing.T) {
t.Run("GetCc with address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetCc()
if len(addresses) != 1 {
t.Fatalf("expected 1 address, got: %d", len(addresses))
}
if addresses[0] == nil {
t.Fatalf("expected address, got nil")
}
if addresses[0].String() != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0].String())
}
})
t.Run("GetCc with multiple address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetCc()
if len(addresses) != 2 {
t.Fatalf("expected 2 address, got: %d", len(addresses))
}
if addresses[0] == nil {
t.Fatalf("expected address, got nil")
}
if addresses[0].String() != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0].String())
}
if addresses[1] == nil {
t.Fatalf("expected address, got nil")
}
if addresses[1].String() != "<tina.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<tina.tester@example.com>", addresses[1].String())
}
})
t.Run("GetCc with no address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
addresses := message.GetCc()
if len(addresses) != 0 {
t.Errorf("expected 0 address, got: %d", len(addresses))
}
})
}
func TestMsg_GetCcString(t *testing.T) {
t.Run("GetCcString with address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetCcString()
if len(addresses) != 1 {
t.Fatalf("expected 1 address, got: %d", len(addresses))
}
if addresses[0] == "" {
t.Fatalf("expected address, got nil")
}
if addresses[0] != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0])
}
})
t.Run("GetCcString with multiple address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Cc("toni.tester@example.com", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetCcString()
if len(addresses) != 2 {
t.Fatalf("expected 2 address, got: %d", len(addresses))
}
if addresses[0] == "" {
t.Fatalf("expected address, got nil")
}
if addresses[0] != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0])
}
if addresses[1] == "" {
t.Fatalf("GetCcString: expected address, got nil")
}
if addresses[1] != "<tina.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<tina.tester@example.com>", addresses[1])
}
})
t.Run("GetCcString with no address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
addresses := message.GetCcString()
if len(addresses) != 0 {
t.Errorf("expected 0 address, got: %d", len(addresses))
}
})
}
func TestMsg_GetBcc(t *testing.T) {
t.Run("GetBcc with address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetBcc()
if len(addresses) != 1 {
t.Fatalf("expected 1 address, got: %d", len(addresses))
}
if addresses[0] == nil {
t.Fatalf("expected address, got nil")
}
if addresses[0].String() != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0].String())
}
})
t.Run("GetBcc with multiple address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("toni.tester@example.com", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetBcc()
if len(addresses) != 2 {
t.Fatalf("expected 2 address, got: %d", len(addresses))
}
if addresses[0] == nil {
t.Fatalf("expected address, got nil")
}
if addresses[0].String() != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0].String())
}
if addresses[1] == nil {
t.Fatalf("expected address, got nil")
}
if addresses[1].String() != "<tina.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<tina.tester@example.com>", addresses[1].String())
}
})
t.Run("GetBcc with no address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
addresses := message.GetBcc()
if len(addresses) != 0 {
t.Errorf("expected 0 address, got: %d", len(addresses))
}
})
}
func TestMsg_GetBccString(t *testing.T) {
t.Run("GetBccString with address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetBccString()
if len(addresses) != 1 {
t.Fatalf("expected 1 address, got: %d", len(addresses))
}
if addresses[0] == "" {
t.Fatalf("expected address, got nil")
}
if addresses[0] != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0])
}
})
t.Run("GetBccString with multiple address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.Bcc("toni.tester@example.com", "tina.tester@example.com"); err != nil {
t.Fatalf("failed to set from address: %s", err)
}
addresses := message.GetBccString()
if len(addresses) != 2 {
t.Fatalf("expected 2 address, got: %d", len(addresses))
}
if addresses[0] == "" {
t.Fatalf("expected address, got nil")
}
if addresses[0] != "<toni.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<toni.tester@example.com>", addresses[0])
}
if addresses[1] == "" {
t.Fatalf("expected address, got nil")
}
if addresses[1] != "<tina.tester@example.com>" {
t.Errorf("expected address not returned. Want: %s, got: %s",
"<tina.tester@example.com>", addresses[1])
}
})
t.Run("GetBccString with no address", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
addresses := message.GetBccString()
if len(addresses) != 0 {
t.Errorf("expected 0 address, got: %d", len(addresses))
}
})
}
func TestMsg_GetGenHeader(t *testing.T) {
t.Run("GetGenHeader with single value", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range genHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message.SetGenHeader(tt.header, "test")
values := message.GetGenHeader(tt.header)
if len(values) != 1 {
t.Errorf("expected 1 value, got: %d", len(values))
}
if values[0] != "test" {
t.Errorf("expected value not returned. Want: %s, got: %s",
"test", values[0])
}
})
}
})
t.Run("GetGenHeader with multiple values", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range genHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message.SetGenHeader(tt.header, "test", "foobar")
values := message.GetGenHeader(tt.header)
if len(values) != 2 {
t.Errorf("expected 1 value, got: %d", len(values))
}
if values[0] != "test" {
t.Errorf("expected value not returned. Want: %s, got: %s",
"test", values[0])
}
if values[1] != "foobar" {
t.Errorf("expected value not returned. Want: %s, got: %s",
"foobar", values[1])
}
})
}
})
t.Run("GetGenHeader with nil", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
for _, tt := range genHeaderTests {
t.Run(tt.name, func(t *testing.T) {
message.SetGenHeader(tt.header)
values := message.GetGenHeader(tt.header)
if len(values) != 0 {
t.Errorf("expected 1 value, got: %d", len(values))
}
})
}
})
}
func TestMsg_GetParts(t *testing.T) {
t.Run("GetParts with single part", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBodyString(TypeTextPlain, "this is a test body")
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatalf("expected part, got nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be TypeTextPlain, got: %s", parts[0].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "this is a test body") {
t.Errorf("expected message body to be %s, got: %s", "this is a test body",
messageBuf.String())
}
})
t.Run("GetParts with multiple parts", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBodyString(TypeTextPlain, "this is a test body")
message.AddAlternativeString(TypeTextHTML, "<p>This is HTML</p>")
parts := message.GetParts()
if len(parts) != 2 {
t.Fatalf("expected 2 parts, got: %d", len(parts))
}
if parts[0] == nil || parts[1] == nil {
t.Fatalf("expected parts, got nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be TypeTextPlain, got: %s", parts[0].contentType)
}
if parts[1].contentType != TypeTextHTML {
t.Errorf("expected contentType to be TypeTextHTML, got: %s", parts[1].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "this is a test body") {
t.Errorf("expected message body to be %s, got: %s", "this is a test body",
messageBuf.String())
}
messageBuf.Reset()
_, err = parts[1].writeFunc(messageBuf)
if err != nil {
t.Errorf("GetParts: writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "<p>This is HTML</p>") {
t.Errorf("expected message body to be %s, got: %s", "<p>This is HTML</p>",
messageBuf.String())
}
})
t.Run("GetParts with no parts", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
parts := message.GetParts()
if len(parts) != 0 {
t.Fatalf("expected no parts, got: %d", len(parts))
}
})
}
func TestMsg_GetAttachments(t *testing.T) {
t.Run("GetAttachments with single attachment", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.AttachFile("testdata/attachment.txt")
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("expected 1 attachment, got: %d", len(attachments))
}
if attachments[0] == nil {
t.Fatalf("expected attachment, got nil")
}
if attachments[0].Name != "attachment.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment.txt",
attachments[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := attachments[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test attachment") {
t.Errorf("expected message body to be %s, got: %s", "This is a test attachment", got)
}
})
t.Run("GetAttachments with multiple attachments", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.AttachFile("testdata/attachment.txt")
message.AttachFile("testdata/attachment.txt", WithFileName("attachment2.txt"))
attachments := message.GetAttachments()
if len(attachments) != 2 {
t.Fatalf("expected 2 attachment, got: %d", len(attachments))
}
if attachments[0] == nil || attachments[1] == nil {
t.Fatalf("expected attachment, got nil")
}
if attachments[0].Name != "attachment.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment.txt",
attachments[0].Name)
}
if attachments[1].Name != "attachment2.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment2.txt",
attachments[1].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := attachments[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test attachment") {
t.Errorf("expected message body to be %s, got: %s", "This is a test attachment", got)
}
messageBuf.Reset()
_, err = attachments[1].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got = strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test attachment") {
t.Errorf("expected message body to be %s, got: %s", "This is a test attachment", got)
}
})
t.Run("GetAttachments with no attachment", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
attachments := message.GetAttachments()
if len(attachments) != 0 {
t.Fatalf("expected 1 attachment, got: %d", len(attachments))
}
})
}
func TestMsg_GetBoundary(t *testing.T) {
t.Run("GetBoundary", func(t *testing.T) {
message := NewMsg(WithBoundary("test"))
if message == nil {
t.Fatal("message is nil")
}
if message.GetBoundary() != "test" {
t.Errorf("expected %s, got: %s", "test", message.GetBoundary())
}
})
t.Run("GetBoundary with no boundary", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if message.GetBoundary() != "" {
t.Errorf("expected empty, got: %s", message.GetBoundary())
}
})
}
func TestMsg_SetAttachments(t *testing.T) {
t.Run("SetAttachments with single file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file := &File{
ContentType: TypeTextPlain,
Desc: "Test file",
Name: "attachment.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is a test attachment"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
message.SetAttachments([]*File{file})
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("expected 1 attachment, got: %d", len(attachments))
}
if attachments[0] == nil {
t.Fatalf("expected attachment, got nil")
}
if attachments[0].Name != "attachment.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment.txt",
attachments[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := attachments[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test attachment") {
t.Errorf("expected message body to be %s, got: %s", "This is a test attachment", got)
}
})
t.Run("SetAttachments with multiple files", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file1 := &File{
ContentType: TypeTextPlain,
Desc: "Test file",
Name: "attachment.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is a test attachment"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
file2 := &File{
ContentType: TypeTextPlain,
Desc: "Test file no. 2",
Name: "attachment2.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is also a test attachment"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
message.SetAttachments([]*File{file1, file2})
attachments := message.GetAttachments()
if len(attachments) != 2 {
t.Fatalf("expected 2 attachment, got: %d", len(attachments))
}
if attachments[0] == nil || attachments[1] == nil {
t.Fatalf("expected attachment, got nil")
}
if attachments[0].Name != "attachment.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment.txt",
attachments[0].Name)
}
if attachments[1].Name != "attachment2.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment2.txt",
attachments[1].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := attachments[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(messageBuf.String(), "This is a test attachment") {
t.Errorf("expected message body to be %s, got: %s", "This is a test attachment", got)
}
messageBuf.Reset()
_, err = attachments[1].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got = strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is also a test attachment") {
t.Errorf("expected message body to be %s, got: %s", "This is also a test attachment", got)
}
})
t.Run("SetAttachments with no file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetAttachments(nil)
attachments := message.GetAttachments()
if len(attachments) != 0 {
t.Fatalf("expected 0 attachment, got: %d", len(attachments))
}
})
}
func TestMsg_SetAttachements(t *testing.T) {
message := NewMsg()
//goland:noinspection GoDeprecation
message.SetAttachements(nil)
t.Log("SetAttachements is deprecated and fully tested by SetAttachments already")
}
func TestMsg_UnsetAllAttachments(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file1 := &File{
ContentType: TypeTextPlain,
Desc: "Test file",
Name: "attachment.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is a test attachment"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
file2 := &File{
ContentType: TypeTextPlain,
Desc: "Test file no. 2",
Name: "attachment2.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is also a test attachment"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
message.SetAttachments([]*File{file1, file2})
message.UnsetAllAttachments()
if message.attachments != nil {
t.Errorf("expected attachments to be nil, got: %v", message.attachments)
}
attachments := message.GetAttachments()
if len(attachments) != 0 {
t.Fatalf("expected 0 attachment, got: %d", len(attachments))
}
}
func TestMsg_GetEmbeds(t *testing.T) {
t.Run("GetEmbeds with single embed", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.EmbedFile("testdata/embed.txt")
embeds := message.GetEmbeds()
if len(embeds) != 1 {
t.Fatalf("expected 1 embed, got: %d", len(embeds))
}
if embeds[0] == nil {
t.Fatalf("expected embed, got nil")
}
if embeds[0].Name != "embed.txt" {
t.Errorf("expected embed name to be %s, got: %s", "embed.txt",
embeds[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := embeds[0].Writer(messageBuf)
if err != nil {
t.Errorf("Writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test embed") {
t.Errorf("expected message body to be %s, got: %s", "This is a test embed", got)
}
})
t.Run("GetEmbeds with multiple embeds", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.EmbedFile("testdata/embed.txt")
message.EmbedFile("testdata/embed.txt", WithFileName("embed2.txt"))
embeds := message.GetEmbeds()
if len(embeds) != 2 {
t.Fatalf("expected 2 embed, got: %d", len(embeds))
}
if embeds[0] == nil || embeds[1] == nil {
t.Fatalf("expected embed, got nil")
}
if embeds[0].Name != "embed.txt" {
t.Errorf("expected embed name to be %s, got: %s", "embed.txt",
embeds[0].Name)
}
if embeds[1].Name != "embed2.txt" {
t.Errorf("expected embed name to be %s, got: %s", "embed2.txt",
embeds[1].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := embeds[0].Writer(messageBuf)
if err != nil {
t.Errorf("Writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test embed") {
t.Errorf("expected message body to be %s, got: %s", "This is a test embed", got)
}
messageBuf.Reset()
_, err = embeds[1].Writer(messageBuf)
if err != nil {
t.Errorf("Writer func failed: %s", err)
}
got = strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test embed") {
t.Errorf("expected message body to be %s, got: %s", "This is a test embed", got)
}
})
t.Run("GetEmbeds with no embeds", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
embeds := message.GetEmbeds()
if len(embeds) != 0 {
t.Fatalf("expected 1 embeds, got: %d", len(embeds))
}
})
}
func TestMsg_SetEmbeds(t *testing.T) {
t.Run("SetEmbeds with single file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file := &File{
ContentType: TypeTextPlain,
Desc: "Test file",
Name: "embed.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is a test embed"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
message.SetEmbeds([]*File{file})
embeds := message.GetEmbeds()
if len(embeds) != 1 {
t.Fatalf("expected 1 embed, got: %d", len(embeds))
}
if embeds[0] == nil {
t.Fatalf("expected embed, got nil")
}
if embeds[0].Name != "embed.txt" {
t.Errorf("expected embed name to be %s, got: %s", "embed.txt",
embeds[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := embeds[0].Writer(messageBuf)
if err != nil {
t.Errorf("Writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test embed") {
t.Errorf("expected message body to be %s, got: %s", "This is a test embed", got)
}
})
t.Run("SetEmbeds with multiple files", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file1 := &File{
ContentType: TypeTextPlain,
Desc: "Test file",
Name: "embed.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is a test embed"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
file2 := &File{
ContentType: TypeTextPlain,
Desc: "Test file no. 2",
Name: "embed2.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is also a test embed"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
message.SetEmbeds([]*File{file1, file2})
embeds := message.GetEmbeds()
if len(embeds) != 2 {
t.Fatalf("expected 2 embed, got: %d", len(embeds))
}
if embeds[0] == nil || embeds[1] == nil {
t.Fatalf("expected embed, got nil")
}
if embeds[0].Name != "embed.txt" {
t.Errorf("expected embed name to be %s, got: %s", "embed.txt",
embeds[0].Name)
}
if embeds[1].Name != "embed2.txt" {
t.Errorf("expected embed name to be %s, got: %s", "embed2.txt",
embeds[1].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := embeds[0].Writer(messageBuf)
if err != nil {
t.Errorf("Writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test embed") {
t.Errorf("expected message body to be %s, got: %s", "This is a test embed", got)
}
messageBuf.Reset()
_, err = embeds[1].Writer(messageBuf)
if err != nil {
t.Errorf("Writer func failed: %s", err)
}
got = strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is also a test embed") {
t.Errorf("expected message body to be %s, got: %s", "This is also a test embed", got)
}
})
t.Run("SetEmbeds with no file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetEmbeds(nil)
embeds := message.GetEmbeds()
if len(embeds) != 0 {
t.Fatalf("expected 0 embed, got: %d", len(embeds))
}
})
}
func TestMsg_UnsetAllEmbeds(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file1 := &File{
ContentType: TypeTextPlain,
Desc: "Test file",
Name: "embed.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is a test embed"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
file2 := &File{
ContentType: TypeTextPlain,
Desc: "Test file no. 2",
Name: "embed2.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is also a test embed"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
message.SetEmbeds([]*File{file1, file2})
message.UnsetAllEmbeds()
if message.embeds != nil {
t.Errorf("expected embeds to be nil, got: %v", message.embeds)
}
embeds := message.GetEmbeds()
if len(embeds) != 0 {
t.Fatalf("expected 0 embed, got: %d", len(embeds))
}
}
func TestMsg_UnsetAllParts(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file1 := &File{
ContentType: TypeTextPlain,
Desc: "Test file",
Name: "embed.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is a test embed"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
file2 := &File{
ContentType: TypeTextPlain,
Desc: "Test file no. 2",
Name: "embed2.txt",
Writer: func(w io.Writer) (int64, error) {
buf := bytes.NewBuffer([]byte("This is also a test embed"))
n, err := w.Write(buf.Bytes())
return int64(n), err
},
}
message.SetAttachments([]*File{file1})
message.SetEmbeds([]*File{file2})
message.UnsetAllParts()
if message.embeds != nil || message.attachments != nil {
t.Error("expected attachments/embeds to be nil, got: value")
}
embeds := message.GetEmbeds()
if len(embeds) != 0 {
t.Fatalf("expected 0 embed, got: %d", len(embeds))
}
attachments := message.GetAttachments()
if len(attachments) != 0 {
t.Fatalf("expected 0 attachments, got: %d", len(attachments))
}
}
func TestMsg_SetBodyString(t *testing.T) {
t.Run("SetBodyString on all types", func(t *testing.T) {
for _, tt := range contentTypeTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBodyString(tt.ctype, "test")
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != tt.ctype {
t.Errorf("expected contentType to be %s, got: %s", tt.ctype,
parts[0].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "test") {
t.Errorf("expected message body to be %s, got: %s", "test", messageBuf.String())
}
})
}
})
}
func TestMsg_SetBodyWriter(t *testing.T) {
writerFunc := func(w io.Writer) (int64, error) {
buffer := bytes.NewBufferString("test")
n, err := w.Write(buffer.Bytes())
return int64(n), err
}
t.Run("SetBodyWriter on all types", func(t *testing.T) {
for _, tt := range contentTypeTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBodyWriter(tt.ctype, writerFunc)
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != tt.ctype {
t.Errorf("expected contentType to be %s, got: %s", tt.ctype,
parts[0].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "test") {
t.Errorf("expected message body to be %s, got: %s", "test", messageBuf.String())
}
})
}
})
t.Run("SetBodyWriter WithPartCharset", func(t *testing.T) {
for _, tt := range charsetTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBodyWriter(TypeTextPlain, writerFunc, WithPartCharset(tt.value))
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain,
parts[0].contentType)
}
if parts[0].charset != tt.value {
t.Errorf("expected charset to be %s, got: %s", tt.value, parts[0].charset)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "test") {
t.Errorf("expected message body to be %s, got: %s", "test", messageBuf.String())
}
})
}
})
t.Run("SetBodyWriter WithPartEncoding", func(t *testing.T) {
for _, tt := range encodingTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBodyWriter(TypeTextPlain, writerFunc, WithPartEncoding(tt.value))
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain,
parts[0].contentType)
}
if parts[0].encoding != tt.value {
t.Errorf("expected encoding to be %s, got: %s", tt.value, parts[0].encoding)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "test") {
t.Errorf("expected message body to be %s, got: %s", "test", messageBuf.String())
}
})
}
})
t.Run("SetBodyWriter WithPartContentDescription", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBodyWriter(TypeTextPlain, writerFunc, WithPartContentDescription("description"))
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain,
parts[0].contentType)
}
if parts[0].description != "description" {
t.Errorf("expected description to be %s, got: %s", "description", parts[0].description)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "test") {
t.Errorf("expected message body to be %s, got: %s", "test", messageBuf.String())
}
})
}
func TestMsg_SetBodyHTMLTemplate(t *testing.T) {
tplString := `<p>{{.teststring}}</p>`
invalidTplString := `<p>{{call $.invalid .teststring}}</p>`
data := map[string]interface{}{"teststring": "this is a test"}
htmlTpl, err := ht.New("htmltpl").Parse(tplString)
if err != nil {
t.Fatalf("failed to parse HTML template: %s", err)
}
invalidTpl, err := ht.New("htmltpl").Parse(invalidTplString)
if err != nil {
t.Fatalf("failed to parse invalid HTML template: %s", err)
}
t.Run("SetBodyHTMLTemplate default", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err = message.SetBodyHTMLTemplate(htmlTpl, data); err != nil {
t.Fatalf("failed to set body HTML template: %s", err)
}
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextHTML {
t.Errorf("expected contentType to be %s, got: %s", TypeTextHTML, parts[0].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "<p>this is a test</p>") {
t.Errorf("expected message body to be %s, got: %s", "<p>this is a test</p>", messageBuf.String())
}
})
t.Run("SetBodyHTMLTemplate with nil tpl", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.SetBodyHTMLTemplate(nil, nil)
if err == nil {
t.Fatal("expected error, got nil")
}
if !strings.EqualFold(err.Error(), errTplPointerNil) {
t.Errorf("expected error to be %s, got: %s", errTplPointerNil, err.Error())
}
})
t.Run("SetBodyHTMLTemplate with invalid tpl", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.SetBodyHTMLTemplate(invalidTpl, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectErr := `failed to execute template: template: htmltpl:1:5: executing "htmltpl" at <call $.invalid ` +
`.teststring>: error calling call: call of nil`
if !strings.EqualFold(err.Error(), expectErr) {
t.Errorf("expected error to be %s, got: %s", expectErr, err.Error())
}
})
}
func TestMsg_SetBodyTextTemplate(t *testing.T) {
tplString := `Teststring: {{.teststring}}`
invalidTplString := `Teststring: {{call $.invalid .teststring}}`
data := map[string]interface{}{"teststring": "this is a test"}
textTpl, err := ttpl.New("texttpl").Parse(tplString)
if err != nil {
t.Fatalf("failed to parse Text template: %s", err)
}
invalidTpl, err := ttpl.New("texttpl").Parse(invalidTplString)
if err != nil {
t.Fatalf("failed to parse invalid Text template: %s", err)
}
t.Run("SetBodyTextTemplate default", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err = message.SetBodyTextTemplate(textTpl, data); err != nil {
t.Fatalf("failed to set body text template: %s", err)
}
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain, parts[0].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "Teststring: this is a test") {
t.Errorf("expected message body to be %s, got: %s", "Teststring: this is a test", messageBuf.String())
}
})
t.Run("SetBodyTextTemplate with nil tpl", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.SetBodyTextTemplate(nil, nil)
if err == nil {
t.Fatal("expected error, got nil")
}
if !strings.EqualFold(err.Error(), errTplPointerNil) {
t.Errorf("expected error to be %s, got: %s", errTplPointerNil, err.Error())
}
})
t.Run("SetBodyTextTemplate with invalid tpl", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.SetBodyTextTemplate(invalidTpl, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectErr := `failed to execute template: template: texttpl:1:14: executing "texttpl" at <call $.invalid ` +
`.teststring>: error calling call: call of nil`
if !strings.EqualFold(err.Error(), expectErr) {
t.Errorf("expected error to be %s, got: %s", expectErr, err.Error())
}
})
}
func TestMsg_AddAlternativeString(t *testing.T) {
t.Run("AddAlternativeString on all types", func(t *testing.T) {
for _, tt := range contentTypeTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.AddAlternativeString(tt.ctype, "test")
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != tt.ctype {
t.Errorf("expected contentType to be %s, got: %s", tt.ctype,
parts[0].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "test") {
t.Errorf("expected message body to be %s, got: %s", "test", messageBuf.String())
}
})
}
})
}
func TestMsg_AddAlternativeWriter(t *testing.T) {
writerFunc := func(w io.Writer) (int64, error) {
buffer := bytes.NewBufferString("test")
n, err := w.Write(buffer.Bytes())
return int64(n), err
}
t.Run("AddAlternativeWriter on all types", func(t *testing.T) {
for _, tt := range contentTypeTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.AddAlternativeWriter(tt.ctype, writerFunc)
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != tt.ctype {
t.Errorf("expected contentType to be %s, got: %s", tt.ctype,
parts[0].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "test") {
t.Errorf("expected message body to be %s, got: %s", "test", messageBuf.String())
}
})
}
})
t.Run("AddAlternativeWriter WithPartCharset", func(t *testing.T) {
for _, tt := range charsetTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.AddAlternativeWriter(TypeTextPlain, writerFunc, WithPartCharset(tt.value))
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain,
parts[0].contentType)
}
if parts[0].charset != tt.value {
t.Errorf("expected charset to be %s, got: %s", tt.value, parts[0].charset)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "test") {
t.Errorf("expected message body to be %s, got: %s", "test", messageBuf.String())
}
})
}
})
t.Run("AddAlternativeWriter WithPartEncoding", func(t *testing.T) {
for _, tt := range encodingTests {
t.Run(tt.name, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.AddAlternativeWriter(TypeTextPlain, writerFunc, WithPartEncoding(tt.value))
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain,
parts[0].contentType)
}
if parts[0].encoding != tt.value {
t.Errorf("expected encoding to be %s, got: %s", tt.value, parts[0].encoding)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "test") {
t.Errorf("expected message body to be %s, got: %s", "test", messageBuf.String())
}
})
}
})
t.Run("AddAlternativeWriter WithPartContentDescription", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.AddAlternativeWriter(TypeTextPlain, writerFunc, WithPartContentDescription("description"))
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain,
parts[0].contentType)
}
if parts[0].description != "description" {
t.Errorf("expected description to be %s, got: %s", "description", parts[0].description)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "test") {
t.Errorf("expected message body to be %s, got: %s", "test", messageBuf.String())
}
})
t.Run("AddAlternativeWriter with body string set", func(t *testing.T) {
writerFunc = func(w io.Writer) (int64, error) {
buffer := bytes.NewBufferString("<p>alternative body</p>")
n, err := w.Write(buffer.Bytes())
return int64(n), err
}
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBodyString(TypeTextPlain, "body string")
message.AddAlternativeWriter(TypeTextHTML, writerFunc)
parts := message.GetParts()
if len(parts) != 2 {
t.Fatalf("expected 2 part, got: %d", len(parts))
}
if parts[0] == nil || parts[1] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain,
parts[0].contentType)
}
if parts[1].contentType != TypeTextHTML {
t.Errorf("expected alternative contentType to be %s, got: %s", TypeTextHTML,
parts[1].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err := parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "body string") {
t.Errorf("expected message body to be %s, got: %s", "body string", messageBuf.String())
}
messageBuf.Reset()
_, err = parts[1].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "<p>alternative body</p>") {
t.Errorf("expected alternative message body to be %s, got: %s", "<p>alternative body</p>", messageBuf.String())
}
})
}
func TestMsg_AddAlternativeHTMLTemplate(t *testing.T) {
tplString := `<p>{{.teststring}}</p>`
invalidTplString := `<p>{{call $.invalid .teststring}}</p>`
data := map[string]interface{}{"teststring": "this is a test"}
htmlTpl, err := ht.New("htmltpl").Parse(tplString)
if err != nil {
t.Fatalf("failed to parse HTML template: %s", err)
}
invalidTpl, err := ht.New("htmltpl").Parse(invalidTplString)
if err != nil {
t.Fatalf("failed to parse invalid HTML template: %s", err)
}
t.Run("AddAlternativeHTMLTemplate default", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err = message.AddAlternativeHTMLTemplate(htmlTpl, data); err != nil {
t.Fatalf("failed to set body HTML template: %s", err)
}
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextHTML {
t.Errorf("expected contentType to be %s, got: %s", TypeTextHTML, parts[0].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "<p>this is a test</p>") {
t.Errorf("expected message body to be %s, got: %s", "<p>this is a test</p>", messageBuf.String())
}
})
t.Run("AddAlternativeHTMLTemplate with body string", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBodyString(TypeTextPlain, "body string")
if err = message.AddAlternativeHTMLTemplate(htmlTpl, data); err != nil {
t.Fatalf("failed to set body HTML template: %s", err)
}
parts := message.GetParts()
if len(parts) != 2 {
t.Fatalf("expected 2 part, got: %d", len(parts))
}
if parts[0] == nil || parts[1] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain, parts[0].contentType)
}
if parts[1].contentType != TypeTextHTML {
t.Errorf("expected contentType to be %s, got: %s", TypeTextHTML, parts[1].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "body string") {
t.Errorf("expected message body to be %s, got: %s", "body string", messageBuf.String())
}
messageBuf.Reset()
_, err = parts[1].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "<p>this is a test</p>") {
t.Errorf("expected message body to be %s, got: %s", "<p>this is a test</p>", messageBuf.String())
}
})
t.Run("AddAlternativeHTMLTemplate with nil tpl", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.AddAlternativeHTMLTemplate(nil, nil)
if err == nil {
t.Fatal("expected error, got nil")
}
if !strings.EqualFold(err.Error(), errTplPointerNil) {
t.Errorf("expected error to be %s, got: %s", errTplPointerNil, err.Error())
}
})
t.Run("AddAlternativeHTMLTemplate with invalid tpl", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.AddAlternativeHTMLTemplate(invalidTpl, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectErr := `failed to execute template: template: htmltpl:1:5: executing "htmltpl" at <call $.invalid ` +
`.teststring>: error calling call: call of nil`
if !strings.EqualFold(err.Error(), expectErr) {
t.Errorf("expected error to be %s, got: %s", expectErr, err.Error())
}
})
}
func TestMsg_AddAlternativeTextTemplate(t *testing.T) {
tplString := `Teststring: {{.teststring}}`
invalidTplString := `Teststring: {{call $.invalid .teststring}}`
data := map[string]interface{}{"teststring": "this is a test"}
textTpl, err := ttpl.New("texttpl").Parse(tplString)
if err != nil {
t.Fatalf("failed to parse Text template: %s", err)
}
invalidTpl, err := ttpl.New("texttpl").Parse(invalidTplString)
if err != nil {
t.Fatalf("failed to parse invalid Text template: %s", err)
}
t.Run("AddAlternativeTextTemplate default", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err = message.AddAlternativeTextTemplate(textTpl, data); err != nil {
t.Fatalf("failed to set body text template: %s", err)
}
parts := message.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 part, got: %d", len(parts))
}
if parts[0] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain, parts[0].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "Teststring: this is a test") {
t.Errorf("expected message body to be %s, got: %s", "Teststring: this is a test", messageBuf.String())
}
})
t.Run("AddAlternativeTextTemplate with body string", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.SetBodyString(TypeTextPlain, "body string")
if err = message.AddAlternativeTextTemplate(textTpl, data); err != nil {
t.Fatalf("failed to set body text template: %s", err)
}
parts := message.GetParts()
if len(parts) != 2 {
t.Fatalf("expected 2 part, got: %d", len(parts))
}
if parts[0] == nil || parts[1] == nil {
t.Fatal("expected part to be not nil")
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain, parts[0].contentType)
}
if parts[1].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain, parts[1].contentType)
}
messageBuf := bytes.NewBuffer(nil)
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "body string") {
t.Errorf("expected message body to be %s, got: %s", "body string", messageBuf.String())
}
messageBuf.Reset()
_, err = parts[1].writeFunc(messageBuf)
if err != nil {
t.Errorf("writeFunc failed: %s", err)
}
if !strings.EqualFold(messageBuf.String(), "Teststring: this is a test") {
t.Errorf("expected message body to be %s, got: %s", "Teststring: this is a test", messageBuf.String())
}
})
t.Run("AddAlternativeTextTemplate with nil tpl", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.AddAlternativeTextTemplate(nil, nil)
if err == nil {
t.Fatal("expected error, got nil")
}
if !strings.EqualFold(err.Error(), errTplPointerNil) {
t.Errorf("expected error to be %s, got: %s", errTplPointerNil, err.Error())
}
})
t.Run("AddAlternativeTextTemplate with invalid tpl", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.AddAlternativeTextTemplate(invalidTpl, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectErr := `failed to execute template: template: texttpl:1:14: executing "texttpl" at <call $.invalid ` +
`.teststring>: error calling call: call of nil`
if !strings.EqualFold(err.Error(), expectErr) {
t.Errorf("expected error to be %s, got: %s", expectErr, err.Error())
}
})
}
func TestMsg_AttachFile(t *testing.T) {
t.Run("AttachFile with file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.AttachFile("testdata/attachment.txt")
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("failed to retrieve attachments list")
}
if attachments[0] == nil {
t.Fatal("expected attachment to be not nil")
}
if attachments[0].Name != "attachment.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment.txt", attachments[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := attachments[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test attachment") {
t.Errorf("expected message body to be %s, got: %s", "This is a test attachment", got)
}
})
t.Run("AttachFile with non-existant file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.AttachFile("testdata/non-existant-file.txt")
attachments := message.GetAttachments()
if len(attachments) != 0 {
t.Fatalf("failed to retrieve attachments list")
}
})
t.Run("AttachFile with options", func(t *testing.T) {
t.Log("all options have already been tested in file_test.go")
})
t.Run("AttachFile with normal file and nil option", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.AttachFile("testdata/attachment.txt", nil)
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("failed to retrieve attachments list")
}
if attachments[0] == nil {
t.Fatal("expected attachment to be not nil")
}
if attachments[0].Name != "attachment.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment.txt", attachments[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := attachments[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test attachment") {
t.Errorf("expected message body to be %s, got: %s", "This is a test attachment", got)
}
})
t.Run("AttachFile with fileFromFS fails on copy", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.AttachFile("testdata/attachment.txt")
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("failed to get attachments, expected 1, got: %d", len(attachments))
}
_, err := attachments[0].Writer(failReadWriteSeekCloser{})
if err == nil {
t.Error("writer func expected to fail, but didn't")
}
})
}
func TestMsg_AttachReader(t *testing.T) {
t.Run("AttachReader with file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file, err := os.Open("testdata/attachment.txt")
if err != nil {
t.Fatalf("failed to open file: %s", err)
}
t.Cleanup(func() {
if err := file.Close(); err != nil {
t.Errorf("failed to close file: %s", err)
}
})
if err = message.AttachReader("attachment.txt", file); err != nil {
t.Fatalf("failed to attach reader: %s", err)
}
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("failed to retrieve attachments list")
}
if attachments[0] == nil {
t.Fatal("expected attachment to be not nil")
}
if attachments[0].Name != "attachment.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment.txt", attachments[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err = attachments[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test attachment") {
t.Errorf("expected message body to be %s, got: %s", "This is a test attachment", got)
}
})
t.Run("AttachReader with fileFromReader fails on copy", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file, err := os.Open("testdata/attachment.txt")
if err != nil {
t.Fatalf("failed to open file: %s", err)
}
t.Cleanup(func() {
if err := file.Close(); err != nil {
t.Errorf("failed to close file: %s", err)
}
})
if err = message.AttachReader("attachment.txt", file); err != nil {
t.Fatalf("failed to attach reader: %s", err)
}
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("failed to get attachments, expected 1, got: %d", len(attachments))
}
_, err = attachments[0].Writer(failReadWriteSeekCloser{})
if err == nil {
t.Error("writer func expected to fail, but didn't")
}
})
}
func TestMsg_AttachReadSeeker(t *testing.T) {
t.Run("AttachReadSeeker with file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file, err := os.Open("testdata/attachment.txt")
if err != nil {
t.Fatalf("failed to open file: %s", err)
}
t.Cleanup(func() {
if err := file.Close(); err != nil {
t.Errorf("failed to close file: %s", err)
}
})
message.AttachReadSeeker("attachment.txt", file)
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("failed to retrieve attachments list")
}
if attachments[0] == nil {
t.Fatal("expected attachment to be not nil")
}
if attachments[0].Name != "attachment.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment.txt", attachments[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err = attachments[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test attachment") {
t.Errorf("expected message body to be %s, got: %s", "This is a test attachment", got)
}
})
t.Run("AttachReadSeeker with fileFromReadSeeker fails on copy", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file, err := os.Open("testdata/attachment.txt")
if err != nil {
t.Fatalf("failed to open file: %s", err)
}
t.Cleanup(func() {
if err := file.Close(); err != nil {
t.Errorf("failed to close file: %s", err)
}
})
message.AttachReadSeeker("attachment.txt", file)
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("failed to get attachments, expected 1, got: %d", len(attachments))
}
_, err = attachments[0].Writer(failReadWriteSeekCloser{})
if err == nil {
t.Error("writer func expected to fail, but didn't")
}
})
}
func TestMsg_AttachHTMLTemplate(t *testing.T) {
tplString := `<p>{{.teststring}}</p>`
invalidTplString := `<p>{{call $.invalid .teststring}}</p>`
data := map[string]interface{}{"teststring": "this is a test"}
htmlTpl, err := ht.New("htmltpl").Parse(tplString)
if err != nil {
t.Fatalf("failed to parse HTML template: %s", err)
}
invalidTpl, err := ht.New("htmltpl").Parse(invalidTplString)
if err != nil {
t.Fatalf("failed to parse invalid HTML template: %s", err)
}
t.Run("AttachHTMLTemplate with valid template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err = message.AttachHTMLTemplate("attachment.html", htmlTpl, data); err != nil {
t.Fatalf("failed to set body HTML template: %s", err)
}
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("failed to retrieve attachments list")
}
if attachments[0] == nil {
t.Fatal("expected attachment to be not nil")
}
if attachments[0].Name != "attachment.html" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment.html", attachments[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err = attachments[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "<p>this is a test</p>") {
t.Errorf("expected message body to be %s, got: %s", "<p>this is a test</p>", got)
}
})
t.Run("AttachHTMLTemplate with invalid template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.AttachHTMLTemplate("attachment.html", invalidTpl, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectErr := `failed to attach template: failed to execute template: template: htmltpl:1:5: executing "htmltpl" ` +
`at <call $.invalid .teststring>: error calling call: call of nil`
if !strings.EqualFold(err.Error(), expectErr) {
t.Errorf("expected error to be %s, got: %s", expectErr, err.Error())
}
})
t.Run("AttachHTMLTemplate with nil template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.AttachHTMLTemplate("attachment.html", nil, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectedErr := `failed to attach template: ` + errTplPointerNil
if !strings.EqualFold(err.Error(), expectedErr) {
t.Errorf("expected error to be %s, got: %s", expectedErr, err.Error())
}
})
}
func TestMsg_AttachTextTemplate(t *testing.T) {
tplString := `Teststring: {{.teststring}}`
invalidTplString := `Teststring: {{call $.invalid .teststring}}`
data := map[string]interface{}{"teststring": "this is a test"}
textTpl, err := ttpl.New("texttpl").Parse(tplString)
if err != nil {
t.Fatalf("failed to parse Text template: %s", err)
}
invalidTpl, err := ttpl.New("texttpl").Parse(invalidTplString)
if err != nil {
t.Fatalf("failed to parse invalid Text template: %s", err)
}
t.Run("AttachTextTemplate with valid template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err = message.AttachTextTemplate("attachment.txt", textTpl, data); err != nil {
t.Fatalf("failed to set body HTML template: %s", err)
}
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("failed to retrieve attachments list")
}
if attachments[0] == nil {
t.Fatal("expected attachment to be not nil")
}
if attachments[0].Name != "attachment.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment.txt", attachments[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err = attachments[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "Teststring: this is a test") {
t.Errorf("expected message body to be %s, got: %s", "Teststring: this is a test", got)
}
})
t.Run("AttachTextTemplate with invalid template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.AttachTextTemplate("attachment.txt", invalidTpl, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectErr := `failed to attach template: failed to execute template: template: texttpl:1:14: executing "texttpl" ` +
`at <call $.invalid .teststring>: error calling call: call of nil`
if !strings.EqualFold(err.Error(), expectErr) {
t.Errorf("expected error to be %s, got: %s", expectErr, err.Error())
}
})
t.Run("AttachTextTemplate with nil template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.AttachTextTemplate("attachment.html", nil, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectedErr := `failed to attach template: ` + errTplPointerNil
if !strings.EqualFold(err.Error(), expectedErr) {
t.Errorf("expected error to be %s, got: %s", expectedErr, err.Error())
}
})
}
func TestMsg_AttachFromEmbedFS(t *testing.T) {
t.Run("AttachFromEmbedFS successful", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.AttachFromEmbedFS("testdata/attachment.txt", &efs,
WithFileName("attachment.txt")); err != nil {
t.Fatalf("failed to attach from embed FS: %s", err)
}
attachments := message.GetAttachments()
if len(attachments) != 1 {
t.Fatalf("failed to retrieve attachments list")
}
if attachments[0] == nil {
t.Fatal("expected attachment to be not nil")
}
if attachments[0].Name != "attachment.txt" {
t.Errorf("expected attachment name to be %s, got: %s", "attachment.txt", attachments[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := attachments[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test attachment") {
t.Errorf("expected message body to be %s, got: %s", "This is a test attachment", got)
}
})
t.Run("AttachFromEmbedFS with invalid path", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err := message.AttachFromEmbedFS("testdata/invalid.txt", &efs, WithFileName("attachment.txt"))
if err == nil {
t.Fatal("expected error, got nil")
}
})
t.Run("AttachFromEmbedFS with nil embed FS", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err := message.AttachFromEmbedFS("testdata/invalid.txt", nil, WithFileName("attachment.txt"))
if err == nil {
t.Fatal("expected error, got nil")
}
})
}
func TestMsg_EmbedFile(t *testing.T) {
t.Run("EmbedFile with file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.EmbedFile("testdata/embed.txt")
embeds := message.GetEmbeds()
if len(embeds) != 1 {
t.Fatalf("failed to retrieve embeds list")
}
if embeds[0] == nil {
t.Fatal("expected embed to be not nil")
}
if embeds[0].Name != "embed.txt" {
t.Errorf("expected embed name to be %s, got: %s", "embed.txt", embeds[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := embeds[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test embed") {
t.Errorf("expected message body to be %s, got: %s", "This is a test embed", got)
}
})
t.Run("EmbedFile with non-existant file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.EmbedFile("testdata/non-existant-file.txt")
embeds := message.GetEmbeds()
if len(embeds) != 0 {
t.Fatalf("failed to retrieve attachments list")
}
})
t.Run("EmbedFile with fileFromFS fails on copy", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
message.EmbedFile("testdata/embed.txt")
emebeds := message.GetEmbeds()
if len(emebeds) != 1 {
t.Fatalf("failed to get emebeds, expected 1, got: %d", len(emebeds))
}
_, err := emebeds[0].Writer(failReadWriteSeekCloser{})
if err == nil {
t.Error("writer func expected to fail, but didn't")
}
})
t.Run("EmbedFile with options", func(t *testing.T) {
t.Log("all options have already been tested in file_test.go")
})
}
func TestMsg_EmbedReader(t *testing.T) {
t.Run("EmbedReader with file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file, err := os.Open("testdata/embed.txt")
if err != nil {
t.Fatalf("failed to open file: %s", err)
}
t.Cleanup(func() {
if err := file.Close(); err != nil {
t.Errorf("failed to close file: %s", err)
}
})
if err = message.EmbedReader("embed.txt", file); err != nil {
t.Fatalf("failed to embed reader: %s", err)
}
embeds := message.GetEmbeds()
if len(embeds) != 1 {
t.Fatalf("failed to retrieve embeds list")
}
if embeds[0] == nil {
t.Fatal("expected embed to be not nil")
}
if embeds[0].Name != "embed.txt" {
t.Errorf("expected embed name to be %s, got: %s", "embed.txt", embeds[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err = embeds[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test embed") {
t.Errorf("expected message body to be %s, got: %s", "This is a test embed", got)
}
})
t.Run("EmbedReader with fileFromReader fails on copy", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file, err := os.Open("testdata/embed.txt")
if err != nil {
t.Fatalf("failed to open file: %s", err)
}
t.Cleanup(func() {
if err := file.Close(); err != nil {
t.Errorf("failed to close file: %s", err)
}
})
if err = message.EmbedReader("embed.txt", file); err != nil {
t.Fatalf("failed to embed reader: %s", err)
}
embeds := message.GetEmbeds()
if len(embeds) != 1 {
t.Fatalf("failed to get embeds, expected 1, got: %d", len(embeds))
}
_, err = embeds[0].Writer(failReadWriteSeekCloser{})
if err == nil {
t.Error("writer func expected to fail, but didn't")
}
})
t.Run("EmbedReader with fileFromReader on closed reader", func(t *testing.T) {
tempfile, err := os.CreateTemp("", "embedfile-close-reader.*.txt")
if err != nil {
t.Fatalf("failed to create temp file: %s", err)
}
if err = tempfile.Close(); err != nil {
t.Fatalf("failed to close temp file: %s", err)
}
t.Cleanup(func() {
if err := os.Remove(tempfile.Name()); err != nil {
t.Errorf("failed to remove temp file: %s", err)
}
})
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err = message.EmbedReader("embed.txt", tempfile); err == nil {
t.Fatalf("expected error, got nil")
}
})
}
func TestMsg_EmbedReadSeeker(t *testing.T) {
t.Run("EmbedReadSeeker with file", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file, err := os.Open("testdata/embed.txt")
if err != nil {
t.Fatalf("failed to open file: %s", err)
}
t.Cleanup(func() {
if err := file.Close(); err != nil {
t.Errorf("failed to close file: %s", err)
}
})
message.EmbedReadSeeker("embed.txt", file)
embeds := message.GetEmbeds()
if len(embeds) != 1 {
t.Fatalf("failed to retrieve embeds list")
}
if embeds[0] == nil {
t.Fatal("expected embed to be not nil")
}
if embeds[0].Name != "embed.txt" {
t.Errorf("expected embed name to be %s, got: %s", "embed.txt", embeds[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err = embeds[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test embed") {
t.Errorf("expected message body to be %s, got: %s", "This is a test embed", got)
}
})
t.Run("EmbedReadSeeker with fileFromReadSeeker fails on copy", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
file, err := os.Open("testdata/embed.txt")
if err != nil {
t.Fatalf("failed to open file: %s", err)
}
t.Cleanup(func() {
if err := file.Close(); err != nil {
t.Errorf("failed to close file: %s", err)
}
})
message.EmbedReadSeeker("embed.txt", file)
embeds := message.GetEmbeds()
if len(embeds) != 1 {
t.Fatalf("failed to get embeds, expected 1, got: %d", len(embeds))
}
_, err = embeds[0].Writer(failReadWriteSeekCloser{})
if err == nil {
t.Error("writer func expected to fail, but didn't")
}
})
}
func TestMsg_EmbedHTMLTemplate(t *testing.T) {
tplString := `<p>{{.teststring}}</p>`
invalidTplString := `<p>{{call $.invalid .teststring}}</p>`
data := map[string]interface{}{"teststring": "this is a test"}
htmlTpl, err := ht.New("htmltpl").Parse(tplString)
if err != nil {
t.Fatalf("failed to parse HTML template: %s", err)
}
invalidTpl, err := ht.New("htmltpl").Parse(invalidTplString)
if err != nil {
t.Fatalf("failed to parse invalid HTML template: %s", err)
}
t.Run("EmbedHTMLTemplate with valid template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err = message.EmbedHTMLTemplate("embed.html", htmlTpl, data); err != nil {
t.Fatalf("failed to set body HTML template: %s", err)
}
embeds := message.GetEmbeds()
if len(embeds) != 1 {
t.Fatalf("failed to retrieve embeds list")
}
if embeds[0] == nil {
t.Fatal("expected embed to be not nil")
}
if embeds[0].Name != "embed.html" {
t.Errorf("expected embed name to be %s, got: %s", "embed.html", embeds[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err = embeds[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "<p>this is a test</p>") {
t.Errorf("expected message body to be %s, got: %s", "<p>this is a test</p>", got)
}
})
t.Run("EmbedHTMLTemplate with invalid template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.EmbedHTMLTemplate("embed.html", invalidTpl, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectErr := `failed to embed template: failed to execute template: template: htmltpl:1:5: executing "htmltpl" ` +
`at <call $.invalid .teststring>: error calling call: call of nil`
if !strings.EqualFold(err.Error(), expectErr) {
t.Errorf("expected error to be %s, got: %s", expectErr, err.Error())
}
})
t.Run("EmbedHTMLTemplate with nil template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.EmbedHTMLTemplate("embed.html", nil, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectedErr := `failed to embed template: ` + errTplPointerNil
if !strings.EqualFold(err.Error(), expectedErr) {
t.Errorf("expected error to be %s, got: %s", expectedErr, err.Error())
}
})
}
func TestMsg_EmbedTextTemplate(t *testing.T) {
tplString := `Teststring: {{.teststring}}`
invalidTplString := `Teststring: {{call $.invalid .teststring}}`
data := map[string]interface{}{"teststring": "this is a test"}
textTpl, err := ttpl.New("texttpl").Parse(tplString)
if err != nil {
t.Fatalf("failed to parse Text template: %s", err)
}
invalidTpl, err := ttpl.New("texttpl").Parse(invalidTplString)
if err != nil {
t.Fatalf("failed to parse invalid Text template: %s", err)
}
t.Run("EmbedTextTemplate with valid template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err = message.EmbedTextTemplate("embed.txt", textTpl, data); err != nil {
t.Fatalf("failed to set body HTML template: %s", err)
}
embeds := message.GetEmbeds()
if len(embeds) != 1 {
t.Fatalf("failed to retrieve embeds list")
}
if embeds[0] == nil {
t.Fatal("expected embed to be not nil")
}
if embeds[0].Name != "embed.txt" {
t.Errorf("expected embed name to be %s, got: %s", "embed.txt", embeds[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err = embeds[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "Teststring: this is a test") {
t.Errorf("expected message body to be %s, got: %s", "Teststring: this is a test", got)
}
})
t.Run("EmbedTextTemplate with invalid template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.EmbedTextTemplate("embed.txt", invalidTpl, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectErr := `failed to embed template: failed to execute template: template: texttpl:1:14: executing "texttpl" ` +
`at <call $.invalid .teststring>: error calling call: call of nil`
if !strings.EqualFold(err.Error(), expectErr) {
t.Errorf("expected error to be %s, got: %s", expectErr, err.Error())
}
})
t.Run("EmbedTextTemplate with nil template", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err = message.EmbedTextTemplate("embed.html", nil, data)
if err == nil {
t.Fatal("expected error, got nil")
}
expectedErr := `failed to embed template: ` + errTplPointerNil
if !strings.EqualFold(err.Error(), expectedErr) {
t.Errorf("expected error to be %s, got: %s", expectedErr, err.Error())
}
})
}
func TestMsg_EmbedFromEmbedFS(t *testing.T) {
t.Run("EmbedFromEmbedFS successful", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.EmbedFromEmbedFS("testdata/embed.txt", &efs,
WithFileName("embed.txt")); err != nil {
t.Fatalf("failed to embed from embed FS: %s", err)
}
embeds := message.GetEmbeds()
if len(embeds) != 1 {
t.Fatalf("failed to retrieve embeds list")
}
if embeds[0] == nil {
t.Fatal("expected embed to be not nil")
}
if embeds[0].Name != "embed.txt" {
t.Errorf("expected embed name to be %s, got: %s", "embed.txt", embeds[0].Name)
}
messageBuf := bytes.NewBuffer(nil)
_, err := embeds[0].Writer(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.EqualFold(got, "This is a test embed") {
t.Errorf("expected message body to be %s, got: %s", "This is a test embed", got)
}
})
t.Run("EmbedFromEmbedFS with invalid path", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err := message.EmbedFromEmbedFS("testdata/invalid.txt", &efs, WithFileName("embed.txt"))
if err == nil {
t.Fatal("expected error, got nil")
}
})
t.Run("EmbedFromEmbedFS with nil embed FS", func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
err := message.EmbedFromEmbedFS("testdata/invalid.txt", nil, WithFileName("embed.txt"))
if err == nil {
t.Fatal("expected error, got nil")
}
})
}
func TestMsg_Reset(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if err := message.From("toni.tester@example.com"); err != nil {
t.Fatalf("failed to set From address: %s", err)
}
if err := message.To("tina.tester@example.com"); err != nil {
t.Fatalf("failed to set To address: %s", err)
}
message.Subject("This is the subject")
message.SetBodyString(TypeTextPlain, "This is the body")
message.AddAlternativeString(TypeTextPlain, "This is the alternative string")
message.EmbedFile("testdata/embed.txt")
message.AttachFile("testdata/attach.txt")
message.Reset()
if len(message.GetFromString()) != 0 {
t.Errorf("expected message From address to be empty, got: %+v", message.GetFromString())
}
if len(message.GetToString()) != 0 {
t.Errorf("expected message To address to be empty, got: %+v", message.GetFromString())
}
if len(message.GetGenHeader(HeaderSubject)) != 0 {
t.Errorf("expected message Subject to be empty, got: %+v", message.GetGenHeader(HeaderSubject))
}
if len(message.GetAttachments()) != 0 {
t.Errorf("expected message Attachments to be empty, got: %d", len(message.GetAttachments()))
}
if len(message.GetEmbeds()) != 0 {
t.Errorf("expected message Embeds to be empty, got: %d", len(message.GetEmbeds()))
}
if len(message.GetParts()) != 0 {
t.Errorf("expected message Parts to be empty, got: %d", len(message.GetParts()))
}
}
func TestMsg_applyMiddlewares(t *testing.T) {
t.Run("new message with middleware: uppercase", func(t *testing.T) {
tests := []struct {
subject string
want string
}{
{"This is test subject", "THIS IS TEST SUBJECT"},
{"This is also a test subject", "THIS IS ALSO A TEST SUBJECT"},
}
for _, tt := range tests {
t.Run(tt.subject, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if len(message.middlewares) != 0 {
t.Errorf("NewMsg() failed. Expected empty middlewares, got: %d", len(message.middlewares))
}
message = NewMsg(WithMiddleware(uppercaseMiddleware{}))
if len(message.middlewares) != 1 {
t.Errorf("NewMsg(WithMiddleware(uppercaseMiddleware{})) failed. Expected 1 middleware, got: %d",
len(message.middlewares))
}
message.Subject(tt.subject)
checkGenHeader(t, message, HeaderSubject, "applyMiddleware", 0, 1, tt.subject)
message = message.applyMiddlewares(message)
checkGenHeader(t, message, HeaderSubject, "applyMiddleware", 0, 1, tt.want)
})
}
})
t.Run("new message with middleware: encode", func(t *testing.T) {
tests := []struct {
subject string
want string
}{
{"This is a test subject", "This is @ test subject"},
{"This is also a test subject", "This is @lso @ test subject"},
}
for _, tt := range tests {
t.Run(tt.subject, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if len(message.middlewares) != 0 {
t.Errorf("NewMsg() failed. Expected empty middlewares, got: %d", len(message.middlewares))
}
message = NewMsg(WithMiddleware(encodeMiddleware{}))
if len(message.middlewares) != 1 {
t.Errorf("NewMsg(WithMiddleware(encodeMiddleware{})) failed. Expected 1 middleware, got: %d",
len(message.middlewares))
}
message.Subject(tt.subject)
checkGenHeader(t, message, HeaderSubject, "applyMiddleware", 0, 1, tt.subject)
message = message.applyMiddlewares(message)
checkGenHeader(t, message, HeaderSubject, "applyMiddleware", 0, 1, tt.want)
})
}
})
t.Run("new message with middleware: uppercase and encode", func(t *testing.T) {
tests := []struct {
subject string
want string
}{
{"This is a test subject", "THIS IS @ TEST SUBJECT"},
{"This is also a test subject", "THIS IS @LSO @ TEST SUBJECT"},
}
for _, tt := range tests {
t.Run(tt.subject, func(t *testing.T) {
message := NewMsg()
if message == nil {
t.Fatal("message is nil")
}
if len(message.middlewares) != 0 {
t.Errorf("NewMsg() failed. Expected empty middlewares, got: %d", len(message.middlewares))
}
message = NewMsg(WithMiddleware(encodeMiddleware{}), WithMiddleware(uppercaseMiddleware{}))
if len(message.middlewares) != 2 {
t.Errorf("NewMsg(WithMiddleware(encodeMiddleware{})) failed. Expected 2 middlewares, got: %d",
len(message.middlewares))
}
message.Subject(tt.subject)
checkGenHeader(t, message, HeaderSubject, "applyMiddleware", 0, 1, tt.subject)
message = message.applyMiddlewares(message)
checkGenHeader(t, message, HeaderSubject, "applyMiddleware", 0, 1, tt.want)
})
}
})
}
func TestMsg_WriteTo(t *testing.T) {
t.Run("WriteTo memory buffer with normal mail parts", func(t *testing.T) {
message := testMessage(t)
buffer := bytes.NewBuffer(nil)
if _, err := message.WriteTo(buffer); err != nil {
t.Fatalf("failed to write message to buffer: %s", err)
}
parsed, err := EMLToMsgFromReader(buffer)
if err != nil {
t.Fatalf("failed to parse message in buffer: %s", err)
}
checkAddrHeader(t, parsed, HeaderFrom, "WriteTo", 0, 1, TestSenderValid, "")
checkAddrHeader(t, parsed, HeaderTo, "WriteTo", 0, 1, TestRcptValid, "")
checkGenHeader(t, parsed, HeaderSubject, "WriteTo", 0, 1, "Testmail")
parts := parsed.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 parts, got: %d", len(parts))
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain, parts[0].contentType)
}
if parts[0].encoding != EncodingQP {
t.Errorf("expected encoding to be %s, got: %s", EncodingQP, parts[0].encoding)
}
messageBuf := bytes.NewBuffer(nil)
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.HasSuffix(got, "Testmail") {
t.Errorf("expected message buffer to contain Testmail, got: %s", got)
}
})
t.Run("WriteTo fails to write", func(t *testing.T) {
message := testMessage(t)
_, err := message.WriteTo(failReadWriteSeekCloser{})
if err == nil {
t.Fatalf("writing to failReadWriteSeekCloser should fail")
}
if strings.EqualFold(err.Error(), "failed to write message to buffer: intentional write failure") {
t.Fatalf("expected error to be: failed to write message to buffer: intentional write failure, got: %s",
err)
}
})
t.Run("WriteTo with long headers", func(t *testing.T) {
message := testMessage(t)
message.SetGenHeader(HeaderContentLang, "de", "en", "fr", "es", "xxxx", "yyyy", "de", "en", "fr",
"es", "xxxx", "yyyy", "de", "en", "fr", "es", "xxxx", "yyyy", "de", "en", "fr")
message.SetGenHeader(HeaderContentID, "XXXXXXXXXXXXXXX XXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXX "+
"XXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXX")
messageBuffer := bytes.NewBuffer(nil)
n, err := message.WriteTo(messageBuffer)
if err != nil {
t.Fatalf("failed to write message to buffer: %s", err)
}
if n != int64(messageBuffer.Len()) {
t.Errorf("expected written bytes: %d, got: %d", n, messageBuffer.Len())
}
})
t.Run("WriteTo with multiple writes", func(t *testing.T) {
message := testMessage(t)
buffer := bytes.NewBuffer(nil)
messageBuf := bytes.NewBuffer(nil)
for i := 0; i < 10; i++ {
t.Run(fmt.Sprintf("write %d", i), func(t *testing.T) {
if _, err := message.WriteTo(buffer); err != nil {
t.Fatalf("failed to write message to buffer: %s", err)
}
parsed, err := EMLToMsgFromReader(buffer)
if err != nil {
t.Fatalf("failed to parse message in buffer: %s", err)
}
checkAddrHeader(t, parsed, HeaderFrom, "WriteTo", 0, 1, TestSenderValid, "")
checkAddrHeader(t, parsed, HeaderTo, "WriteTo", 0, 1, TestRcptValid, "")
checkGenHeader(t, parsed, HeaderSubject, "WriteTo", 0, 1, "Testmail")
parts := parsed.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 parts, got: %d", len(parts))
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain, parts[0].contentType)
}
if parts[0].encoding != EncodingQP {
t.Errorf("expected encoding to be %s, got: %s", EncodingQP, parts[0].encoding)
}
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.HasSuffix(got, "Testmail") {
t.Errorf("expected message buffer to contain Testmail, got: %s", got)
}
buffer.Reset()
})
}
})
}
func TestMsg_WriteToFile(t *testing.T) {
t.Run("WriteToFile with normal mail parts", func(t *testing.T) {
tempfile, err := os.CreateTemp("", "testmail.*.eml")
if err != nil {
t.Fatalf("failed to create temp file: %s", err)
}
if err = tempfile.Close(); err != nil {
t.Fatalf("failed to close temp file: %s", err)
}
if err = os.Remove(tempfile.Name()); err != nil {
t.Fatalf("failed to remove temp file: %s", err)
}
message := testMessage(t)
if err = message.WriteToFile(tempfile.Name()); err != nil {
t.Fatalf("failed to write message to tempfile %q: %s", tempfile.Name(), err)
}
parsed, err := EMLToMsgFromFile(tempfile.Name())
if err != nil {
t.Fatalf("failed to parse message in buffer: %s", err)
}
checkAddrHeader(t, parsed, HeaderFrom, "WriteTo", 0, 1, TestSenderValid, "")
checkAddrHeader(t, parsed, HeaderTo, "WriteTo", 0, 1, TestRcptValid, "")
checkGenHeader(t, parsed, HeaderSubject, "WriteTo", 0, 1, "Testmail")
parts := parsed.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 parts, got: %d", len(parts))
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain, parts[0].contentType)
}
if parts[0].encoding != EncodingQP {
t.Errorf("expected encoding to be %s, got: %s", EncodingQP, parts[0].encoding)
}
messageBuf := bytes.NewBuffer(nil)
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.HasSuffix(got, "Testmail") {
t.Errorf("expected message buffer to contain Testmail, got: %s", got)
}
})
}
func TestMsg_Write(t *testing.T) {
message := testMessage(t)
if _, err := message.Write(io.Discard); err != nil {
t.Fatalf("failed to write message to io.Discard: %s", err)
}
t.Log("Write() is just an alias to WriteTo(), which has already been tested.")
}
func TestMsg_WriteToSkipMiddleware(t *testing.T) {
t.Run("WriteToSkipMiddleware with two middlewares, skipping uppercase", func(t *testing.T) {
message := NewMsg(WithMiddleware(encodeMiddleware{}), WithMiddleware(uppercaseMiddleware{}))
if message == nil {
t.Fatal("failed to create new message")
}
if err := message.From(TestSenderValid); err != nil {
t.Errorf("failed to set sender address: %s", err)
}
if err := message.To(TestRcptValid); err != nil {
t.Errorf("failed to set recipient address: %s", err)
}
message.Subject("This is a test subject")
message.SetBodyString(TypeTextPlain, "Testmail")
buffer := bytes.NewBuffer(nil)
if _, err := message.WriteToSkipMiddleware(buffer, uppercaseMiddleware{}.Type()); err != nil {
t.Fatalf("failed to write message with middleware to buffer: %s", err)
}
parsed, err := EMLToMsgFromReader(buffer)
if err != nil {
t.Fatalf("failed to parse message in buffer: %s", err)
}
checkAddrHeader(t, parsed, HeaderFrom, "WriteTo", 0, 1, TestSenderValid, "")
checkAddrHeader(t, parsed, HeaderTo, "WriteTo", 0, 1, TestRcptValid, "")
checkGenHeader(t, parsed, HeaderSubject, "WriteTo", 0, 1, "This is @ test subject")
parts := parsed.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 parts, got: %d", len(parts))
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain, parts[0].contentType)
}
if parts[0].encoding != EncodingQP {
t.Errorf("expected encoding to be %s, got: %s", EncodingQP, parts[0].encoding)
}
messageBuf := bytes.NewBuffer(nil)
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.HasSuffix(got, "Testmail") {
t.Errorf("expected message buffer to contain Testmail, got: %s", got)
}
})
}
// TestMsg_WriteToSendmailWithContext tests the WriteToSendmailWithContext() method of the Msg
func TestMsg_WriteToSendmailWithContext(t *testing.T) {
if os.Getenv("PERFORM_SENDMAIL_TESTS") != "true" {
t.Skipf("PERFORM_SENDMAIL_TESTS variable is not set to true, skipping sendmail test")
}
if !hasSendmail() {
t.Skipf("sendmail binary not found, skipping test")
}
tests := []struct {
sendmailPath string
shouldFail bool
}{
{"/dev/null", true},
{"/bin/cat", true},
{"/is/invalid", true},
{SendmailPath, false},
}
t.Run("WriteToSendmailWithContext on different paths", func(t *testing.T) {
for _, tt := range tests {
t.Run(tt.sendmailPath, func(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), time.Second*1)
defer cancel()
message := testMessage(t)
err := message.WriteToSendmailWithContext(ctx, tt.sendmailPath)
if err != nil && !tt.shouldFail {
t.Errorf("failed to write message to sendmail: %s", err)
}
if err == nil && tt.shouldFail {
t.Error("expected error, got nil")
}
})
}
})
t.Run("WriteToSendmailWithContext on canceled context", func(t *testing.T) {
if !hasSendmail() {
t.Skipf("sendmail binary not found, skipping test")
}
ctx, cancel := context.WithTimeout(context.Background(), time.Second*1)
cancel()
message := testMessage(t)
if err := message.WriteToSendmailWithContext(ctx, SendmailPath); err == nil {
t.Fatalf("expected error on canceled context, got nil")
}
})
t.Run("WriteToSendmailWithContext via WriteToSendmail", func(t *testing.T) {
if !hasSendmail() {
t.Skipf("sendmail binary not found, skipping test")
}
message := testMessage(t)
if err := message.WriteToSendmail(); err != nil {
t.Fatalf("failed to write message to sendmail: %s", err)
}
})
t.Run("WriteToSendmailWithContext via WriteToSendmailWithCommand", func(t *testing.T) {
if !hasSendmail() {
t.Skipf("sendmail binary not found, skipping test")
}
message := testMessage(t)
if err := message.WriteToSendmailWithCommand(SendmailPath); err != nil {
t.Fatalf("failed to write message to sendmail: %s", err)
}
})
}
func TestMsg_NewReader(t *testing.T) {
t.Run("NewReader succeeds", func(t *testing.T) {
message := testMessage(t)
reader := message.NewReader()
if reader == nil {
t.Fatalf("failed to create message reader")
}
if reader.Error() != nil {
t.Errorf("failed to create message reader: %s", reader.Error())
}
parsed, err := EMLToMsgFromReader(reader)
if err != nil {
t.Fatalf("failed to parse message in buffer: %s", err)
}
checkAddrHeader(t, parsed, HeaderFrom, "WriteTo", 0, 1, TestSenderValid, "")
checkAddrHeader(t, parsed, HeaderTo, "WriteTo", 0, 1, TestRcptValid, "")
checkGenHeader(t, parsed, HeaderSubject, "WriteTo", 0, 1, "Testmail")
parts := parsed.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 parts, got: %d", len(parts))
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain, parts[0].contentType)
}
if parts[0].encoding != EncodingQP {
t.Errorf("expected encoding to be %s, got: %s", EncodingQP, parts[0].encoding)
}
messageBuf := bytes.NewBuffer(nil)
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.HasSuffix(got, "Testmail") {
t.Errorf("expected message buffer to contain Testmail, got: %s", got)
}
})
t.Run("NewReader should fail on write", func(t *testing.T) {
message := testMessage(t)
if len(message.parts) != 1 {
t.Fatalf("expected 1 parts, got: %d", len(message.parts))
}
message.parts[0].writeFunc = func(io.Writer) (int64, error) {
return 0, errors.New("intentional write error")
}
reader := message.NewReader()
if reader == nil {
t.Fatalf("failed to create message reader")
}
if reader.Error() == nil {
t.Fatalf("expected error on write, got nil")
}
if !strings.EqualFold(reader.Error().Error(), `failed to write Msg to Reader buffer: bodyWriter function: `+
`intentional write error`) {
t.Errorf("expected error to be %s, got: %s", `failed to write Msg to Reader buffer: bodyWriter function: `+
`intentional write error`, reader.Error().Error())
}
})
}
func TestMsg_UpdateReader(t *testing.T) {
t.Run("UpdateReader succeeds", func(t *testing.T) {
message := testMessage(t)
reader := message.NewReader()
if reader == nil {
t.Fatalf("failed to create message reader")
}
if reader.Error() != nil {
t.Errorf("failed to create message reader: %s", reader.Error())
}
message.Subject("This is the actual subject")
message.UpdateReader(reader)
if reader == nil {
t.Fatalf("failed to create message reader")
}
if reader.Error() != nil {
t.Errorf("failed to create message reader: %s", reader.Error())
}
parsed, err := EMLToMsgFromReader(reader)
if err != nil {
t.Fatalf("failed to parse message in buffer: %s", err)
}
checkAddrHeader(t, parsed, HeaderFrom, "WriteTo", 0, 1, TestSenderValid, "")
checkAddrHeader(t, parsed, HeaderTo, "WriteTo", 0, 1, TestRcptValid, "")
checkGenHeader(t, parsed, HeaderSubject, "WriteTo", 0, 1, "This is the actual subject")
parts := parsed.GetParts()
if len(parts) != 1 {
t.Fatalf("expected 1 parts, got: %d", len(parts))
}
if parts[0].contentType != TypeTextPlain {
t.Errorf("expected contentType to be %s, got: %s", TypeTextPlain, parts[0].contentType)
}
if parts[0].encoding != EncodingQP {
t.Errorf("expected encoding to be %s, got: %s", EncodingQP, parts[0].encoding)
}
messageBuf := bytes.NewBuffer(nil)
_, err = parts[0].writeFunc(messageBuf)
if err != nil {
t.Errorf("writer func failed: %s", err)
}
got := strings.TrimSpace(messageBuf.String())
if !strings.HasSuffix(got, "Testmail") {
t.Errorf("expected message buffer to contain Testmail, got: %s", got)
}
})
t.Run("UpdateReader should fail on write", func(t *testing.T) {
message := testMessage(t)
reader := message.NewReader()
if reader == nil {
t.Fatalf("failed to create message reader")
}
if reader.Error() != nil {
t.Errorf("failed to create message reader: %s", reader.Error())
}
message.Subject("This is the actual subject")
if len(message.parts) != 1 {
t.Fatalf("expected 1 parts, got: %d", len(message.parts))
}
message.parts[0].writeFunc = func(io.Writer) (int64, error) {
return 0, errors.New("intentional write error")
}
message.UpdateReader(reader)
if reader == nil {
t.Fatalf("failed to create message reader")
}
if reader.Error() == nil {
t.Fatalf("expected error on write, got nil")
}
if !strings.EqualFold(reader.Error().Error(), `bodyWriter function: intentional write error`) {
t.Errorf("expected error to be %s, got: %s", `bodyWriter function: intentional write error`,
reader.Error().Error())
}
})
}
func TestMsg_HasSendError(t *testing.T) {
t.Run("HasSendError on unsent message", func(t *testing.T) {
message := testMessage(t)
if message.HasSendError() {
t.Error("HasSendError on unsent message should return false")
}
})
t.Run("HasSendError on sent message", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
PortAdder.Add(1)
serverPort := int(TestServerPortBase + PortAdder.Load())
featureSet := "250-8BITMIME\r\n250-DSN\r\n250 SMTPUTF8"
go func() {
if err := simpleSMTPServer(ctx, t, &serverProps{
FeatureSet: featureSet,
ListenPort: serverPort,
}); err != nil {
t.Errorf("failed to start test server: %s", err)
return
}
}()
time.Sleep(time.Millisecond * 30)
client, err := NewClient(DefaultHost, WithPort(serverPort), WithTLSPolicy(NoTLS))
if err != nil {
t.Fatalf("failed to create new client: %s", err)
}
message := testMessage(t)
if err = client.DialAndSend(message); err != nil {
var netErr net.Error
if errors.As(err, &netErr) && netErr.Timeout() {
t.Skip("failed to connect to the test server due to timeout")
}
t.Fatalf("failed to connect to test server: %s", err)
}
t.Cleanup(func() {
if err := client.Close(); err != nil {
t.Errorf("failed to close client: %s", err)
}
})
if message.HasSendError() {
t.Error("HasSendError on sent message should return false")
}
})
t.Run("HasSendError on failed message delivery", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
PortAdder.Add(1)
serverPort := int(TestServerPortBase + PortAdder.Load())
featureSet := "250-8BITMIME\r\n250-DSN\r\n250 SMTPUTF8"
go func() {
if err := simpleSMTPServer(ctx, t, &serverProps{
FailOnDataClose: true,
FeatureSet: featureSet,
ListenPort: serverPort,
}); err != nil {
t.Errorf("failed to start test server: %s", err)
return
}
}()
time.Sleep(time.Millisecond * 30)
client, err := NewClient(DefaultHost, WithPort(serverPort), WithTLSPolicy(NoTLS))
if err != nil {
t.Fatalf("failed to create new client: %s", err)
}
message := testMessage(t)
if err = client.DialAndSend(message); err == nil {
t.Error("message delivery was supposed to fail on data close")
}
if !message.HasSendError() {
t.Error("HasSendError on failed message delivery should return true")
}
})
t.Run("HasSendError on failed message with SendError", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
PortAdder.Add(1)
serverPort := int(TestServerPortBase + PortAdder.Load())
featureSet := "250-8BITMIME\r\n250-DSN\r\n250 SMTPUTF8"
go func() {
if err := simpleSMTPServer(ctx, t, &serverProps{
FailOnDataClose: true,
FeatureSet: featureSet,
ListenPort: serverPort,
}); err != nil {
t.Errorf("failed to start test server: %s", err)
return
}
}()
time.Sleep(time.Millisecond * 30)
client, err := NewClient(DefaultHost, WithPort(serverPort), WithTLSPolicy(NoTLS))
if err != nil {
t.Fatalf("failed to create new client: %s", err)
}
message := testMessage(t)
if err = client.DialAndSend(message); err == nil {
t.Error("message delivery was supposed to fail on data close")
}
if !message.HasSendError() {
t.Fatal("HasSendError on failed message delivery should return true")
}
if message.SendError() == nil {
t.Fatal("SendError on failed message delivery should return SendErr")
}
var sendErr *SendError
if !errors.As(message.SendError(), &sendErr) {
t.Fatal("expected SendError to return a SendError type")
}
})
t.Run("HasSendError with SendErrorIsTemp", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
PortAdder.Add(1)
serverPort := int(TestServerPortBase + PortAdder.Load())
featureSet := "250-8BITMIME\r\n250-DSN\r\n250 SMTPUTF8"
go func() {
if err := simpleSMTPServer(ctx, t, &serverProps{
FailOnDataClose: true,
FeatureSet: featureSet,
ListenPort: serverPort,
}); err != nil {
t.Errorf("failed to start test server: %s", err)
return
}
}()
time.Sleep(time.Millisecond * 30)
client, err := NewClient(DefaultHost, WithPort(serverPort), WithTLSPolicy(NoTLS))
if err != nil {
t.Fatalf("failed to create new client: %s", err)
}
message := testMessage(t)
if err = client.DialAndSend(message); err == nil {
t.Error("message delivery was supposed to fail on data close")
}
if !message.HasSendError() {
t.Error("HasSendError on failed message delivery should return true")
}
if message.SendErrorIsTemp() {
t.Error("SendErrorIsTemp on hard failed message delivery should return false")
}
})
t.Run("HasSendError with SendErrorIsTemp on temp error", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
PortAdder.Add(1)
serverPort := int(TestServerPortBase + PortAdder.Load())
featureSet := "250-8BITMIME\r\n250-DSN\r\n250 SMTPUTF8"
go func() {
if err := simpleSMTPServer(ctx, t, &serverProps{
FailTemp: true,
FeatureSet: featureSet,
ListenPort: serverPort,
}); err != nil {
t.Errorf("failed to start test server: %s", err)
return
}
}()
time.Sleep(time.Millisecond * 30)
client, err := NewClient(DefaultHost, WithPort(serverPort), WithTLSPolicy(NoTLS))
if err != nil {
t.Fatalf("failed to create new client: %s", err)
}
message := testMessage(t)
if err = client.DialAndSend(message); err == nil {
t.Error("message delivery was supposed to fail on data close")
}
if !message.HasSendError() {
t.Error("HasSendError on failed message delivery should return true")
}
if !message.SendErrorIsTemp() {
t.Error("SendErrorIsTemp on temp failed message delivery should return true")
}
})
t.Run("HasSendError with not a SendErr", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
PortAdder.Add(1)
serverPort := int(TestServerPortBase + PortAdder.Load())
featureSet := "250-8BITMIME\r\n250-DSN\r\n250 SMTPUTF8"
go func() {
if err := simpleSMTPServer(ctx, t, &serverProps{
FailTemp: true,
FeatureSet: featureSet,
ListenPort: serverPort,
}); err != nil {
t.Errorf("failed to start test server: %s", err)
return
}
}()
time.Sleep(time.Millisecond * 30)
client, err := NewClient(DefaultHost, WithPort(serverPort), WithTLSPolicy(NoTLS))
if err != nil {
t.Fatalf("failed to create new client: %s", err)
}
message := testMessage(t)
if err = client.DialAndSend(message); err == nil {
t.Error("message delivery was supposed to fail on data close")
}
message.sendError = errors.New("not a SendErr")
if !message.HasSendError() {
t.Error("HasSendError with not a SendErr should still return true")
}
if message.SendErrorIsTemp() {
t.Error("SendErrorIsTemp on not a SendErr should return false")
}
})
}
/*
// TestMsg_hasAlt tests the hasAlt() method of the Msg
func TestMsg_hasAlt(t *testing.T) {
m := NewMsg()
m.SetBodyString(TypeTextPlain, "Plain")
m.AddAlternativeString(TypeTextHTML, "<b>HTML</b>")
if !m.hasAlt() {
t.Errorf("mail has alternative parts but hasAlt() returned true")
}
}
// TestMsg_hasRelated tests the hasRelated() method of the Msg
func TestMsg_hasRelated(t *testing.T) {
m := NewMsg()
m.SetBodyString(TypeTextPlain, "Plain")
m.EmbedFile("README.md")
if !m.hasRelated() {
t.Errorf("mail has related parts but hasRelated() returned true")
}
}
// TestMsg_hasMixed tests the hasMixed() method of the Msg
func TestMsg_hasMixed(t *testing.T) {
m := NewMsg()
m.SetBodyString(TypeTextPlain, "Plain")
m.AttachFile("README.md")
if !m.hasMixed() {
t.Errorf("mail has mixed parts but hasMixed() returned true")
}
}
// TestMsg_UpdateReader tests the Msg.UpdateReader method
func TestMsg_UpdateReader(t *testing.T) {
m := NewMsg()
m.Subject("Subject-Run 1")
mr := m.NewReader()
if mr == nil {
t.Errorf("NewReader failed: Reader is nil")
}
wbuf1 := bytes.Buffer{}
_, err := io.Copy(&wbuf1, mr)
if err != nil {
t.Errorf("io.Copy on Reader failed: %s", err)
}
if !strings.Contains(wbuf1.String(), "Subject: Subject-Run 1") {
t.Errorf("io.Copy on Reader failed. Expected to find %q but string in Subject was not found",
"Subject-Run 1")
}
m.Subject("Subject-Run 2")
m.UpdateReader(mr)
wbuf2 := bytes.Buffer{}
_, err = io.Copy(&wbuf2, mr)
if err != nil {
t.Errorf("2nd io.Copy on Reader failed: %s", err)
}
if !strings.Contains(wbuf2.String(), "Subject: Subject-Run 2") {
t.Errorf("io.Copy on Reader failed. Expected to find %q but string in Subject was not found",
"Subject-Run 2")
}
}
// TestMsg_GetGenHeader will test the GetGenHeader method of the Msg
func TestMsg_GetGenHeader(t *testing.T) {
m := NewMsg()
m.Subject("this is a test")
sa := m.GetGenHeader(HeaderSubject)
if len(sa) <= 0 {
t.Errorf("GetGenHeader on subject failed. Got empty slice")
return
}
if sa[0] == "" {
t.Errorf("GetGenHeader on subject failed. Got empty value")
}
if sa[0] != "this is a test" {
t.Errorf("GetGenHeader on subject failed. Expected: %q, got: %q", "this is a test", sa[0])
}
}
// TestMsg_GetAddrHeader will test the Msg.GetAddrHeader method
func TestMsg_GetAddrHeader(t *testing.T) {
m := NewMsg()
if err := m.FromFormat("Toni Sender", "sender@example.com"); err != nil {
t.Errorf("failed to set FROM address: %s", err)
}
if err := m.AddToFormat("Toni To", "to@example.com"); err != nil {
t.Errorf("failed to set TO address: %s", err)
}
if err := m.AddCcFormat("Toni Cc", "cc@example.com"); err != nil {
t.Errorf("failed to set CC address: %s", err)
}
if err := m.AddBccFormat("Toni Bcc", "bcc@example.com"); err != nil {
t.Errorf("failed to set BCC address: %s", err)
}
fh := m.GetAddrHeader(HeaderFrom)
if len(fh) <= 0 {
t.Errorf("GetAddrHeader on FROM failed. Got empty slice")
return
}
if fh[0].String() == "" {
t.Errorf("GetAddrHeader on FROM failed. Got empty value")
}
if fh[0].String() != `"Toni Sender" <sender@example.com>` {
t.Errorf("GetAddrHeader on FROM failed. Expected: %q, got: %q",
`"Toni Sender" <sender@example.com>"`, fh[0].String())
}
th := m.GetAddrHeader(HeaderTo)
if len(th) <= 0 {
t.Errorf("GetAddrHeader on TO failed. Got empty slice")
return
}
if th[0].String() == "" {
t.Errorf("GetAddrHeader on TO failed. Got empty value")
}
if th[0].String() != `"Toni To" <to@example.com>` {
t.Errorf("GetAddrHeader on TO failed. Expected: %q, got: %q",
`"Toni To" <to@example.com>"`, th[0].String())
}
ch := m.GetAddrHeader(HeaderCc)
if len(ch) <= 0 {
t.Errorf("GetAddrHeader on CC failed. Got empty slice")
return
}
if ch[0].String() == "" {
t.Errorf("GetAddrHeader on CC failed. Got empty value")
}
if ch[0].String() != `"Toni Cc" <cc@example.com>` {
t.Errorf("GetAddrHeader on CC failed. Expected: %q, got: %q",
`"Toni Cc" <cc@example.com>"`, ch[0].String())
}
bh := m.GetAddrHeader(HeaderBcc)
if len(bh) <= 0 {
t.Errorf("GetAddrHeader on BCC failed. Got empty slice")
return
}
if bh[0].String() == "" {
t.Errorf("GetAddrHeader on BCC failed. Got empty value")
}
if bh[0].String() != `"Toni Bcc" <bcc@example.com>` {
t.Errorf("GetAddrHeader on BCC failed. Expected: %q, got: %q",
`"Toni Bcc" <bcc@example.com>"`, bh[0].String())
}
}
// TestMsg_GetFrom will test the Msg.GetFrom method
func TestMsg_GetFrom(t *testing.T) {
m := NewMsg()
if err := m.FromFormat("Toni Sender", "sender@example.com"); err != nil {
t.Errorf("failed to set FROM address: %s", err)
}
fh := m.GetFrom()
if len(fh) <= 0 {
t.Errorf("GetFrom failed. Got empty slice")
return
}
if fh[0].String() == "" {
t.Errorf("GetFrom failed. Got empty value")
}
if fh[0].String() != `"Toni Sender" <sender@example.com>` {
t.Errorf("GetFrom failed. Expected: %q, got: %q",
`"Toni Sender" <sender@example.com>"`, fh[0].String())
}
}
// TestMsg_GetFromString will test the Msg.GetFromString method
func TestMsg_GetFromString(t *testing.T) {
m := NewMsg()
if err := m.FromFormat("Toni Sender", "sender@example.com"); err != nil {
t.Errorf("failed to set FROM address: %s", err)
}
fh := m.GetFromString()
if len(fh) <= 0 {
t.Errorf("GetFromString failed. Got empty slice")
return
}
if fh[0] == "" {
t.Errorf("GetFromString failed. Got empty value")
}
if fh[0] != `"Toni Sender" <sender@example.com>` {
t.Errorf("GetFromString failed. Expected: %q, got: %q",
`"Toni Sender" <sender@example.com>"`, fh[0])
}
}
// TestMsg_GetTo will test the Msg.GetTo method
func TestMsg_GetTo(t *testing.T) {
m := NewMsg()
if err := m.AddToFormat("Toni To", "to@example.com"); err != nil {
t.Errorf("failed to set TO address: %s", err)
}
fh := m.GetTo()
if len(fh) <= 0 {
t.Errorf("GetTo failed. Got empty slice")
return
}
if fh[0].String() == "" {
t.Errorf("GetTo failed. Got empty value")
}
if fh[0].String() != `"Toni To" <to@example.com>` {
t.Errorf("GetTo failed. Expected: %q, got: %q",
`"Toni To" <to@example.com>"`, fh[0].String())
}
}
// TestMsg_GetToString will test the Msg.GetToString method
func TestMsg_GetToString(t *testing.T) {
m := NewMsg()
if err := m.AddToFormat("Toni To", "to@example.com"); err != nil {
t.Errorf("failed to set TO address: %s", err)
}
fh := m.GetToString()
if len(fh) <= 0 {
t.Errorf("GetToString failed. Got empty slice")
return
}
if fh[0] == "" {
t.Errorf("GetToString failed. Got empty value")
}
if fh[0] != `"Toni To" <to@example.com>` {
t.Errorf("GetToString failed. Expected: %q, got: %q",
`"Toni To" <to@example.com>"`, fh[0])
}
}
// TestMsg_GetCc will test the Msg.GetCc method
func TestMsg_GetCc(t *testing.T) {
m := NewMsg()
if err := m.AddCcFormat("Toni Cc", "cc@example.com"); err != nil {
t.Errorf("failed to set TO address: %s", err)
}
fh := m.GetCc()
if len(fh) <= 0 {
t.Errorf("GetCc failed. Got empty slice")
return
}
if fh[0].String() == "" {
t.Errorf("GetCc failed. Got empty value")
}
if fh[0].String() != `"Toni Cc" <cc@example.com>` {
t.Errorf("GetCc failed. Expected: %q, got: %q",
`"Toni Cc" <cc@example.com>"`, fh[0].String())
}
}
// TestMsg_GetCcString will test the Msg.GetCcString method
func TestMsg_GetCcString(t *testing.T) {
m := NewMsg()
if err := m.AddCcFormat("Toni Cc", "cc@example.com"); err != nil {
t.Errorf("failed to set TO address: %s", err)
}
fh := m.GetCcString()
if len(fh) <= 0 {
t.Errorf("GetCcString failed. Got empty slice")
return
}
if fh[0] == "" {
t.Errorf("GetCcString failed. Got empty value")
}
if fh[0] != `"Toni Cc" <cc@example.com>` {
t.Errorf("GetCcString failed. Expected: %q, got: %q",
`"Toni Cc" <cc@example.com>"`, fh[0])
}
}
// TestMsg_GetBcc will test the Msg.GetBcc method
func TestMsg_GetBcc(t *testing.T) {
m := NewMsg()
if err := m.AddBccFormat("Toni Bcc", "bcc@example.com"); err != nil {
t.Errorf("failed to set TO address: %s", err)
}
fh := m.GetBcc()
if len(fh) <= 0 {
t.Errorf("GetBcc failed. Got empty slice")
return
}
if fh[0].String() == "" {
t.Errorf("GetBcc failed. Got empty value")
}
if fh[0].String() != `"Toni Bcc" <bcc@example.com>` {
t.Errorf("GetBcc failed. Expected: %q, got: %q",
`"Toni Cc" <bcc@example.com>"`, fh[0].String())
}
}
// TestMsg_GetBccString will test the Msg.GetBccString method
func TestMsg_GetBccString(t *testing.T) {
m := NewMsg()
if err := m.AddBccFormat("Toni Bcc", "bcc@example.com"); err != nil {
t.Errorf("failed to set TO address: %s", err)
}
fh := m.GetBccString()
if len(fh) <= 0 {
t.Errorf("GetBccString failed. Got empty slice")
return
}
if fh[0] == "" {
t.Errorf("GetBccString failed. Got empty value")
}
if fh[0] != `"Toni Bcc" <bcc@example.com>` {
t.Errorf("GetBccString failed. Expected: %q, got: %q",
`"Toni Cc" <bcc@example.com>"`, fh[0])
}
}
// TestMsg_GetBoundary will test the Msg.GetBoundary method
func TestMsg_GetBoundary(t *testing.T) {
b := "random_boundary_string"
m := NewMsg()
if boundary := m.GetBoundary(); boundary != "" {
t.Errorf("GetBoundary failed. Expected empty string, but got: %s", boundary)
}
m = NewMsg(WithBoundary(b))
if boundary := m.GetBoundary(); boundary != b {
t.Errorf("GetBoundary failed. Expected boundary: %s, got: %s", b, boundary)
}
}
// TestMsg_AttachEmbedReader_consecutive tests the Msg.AttachReader and Msg.EmbedReader
// methods with consecutive calls to Msg.WriteTo to make sure the attachments are not
// lost (see Github issue #110)
func TestMsg_AttachEmbedReader_consecutive(t *testing.T) {
ts1 := "This is a test string"
ts2 := "Another test string"
m := NewMsg()
if err := m.AttachReader("attachment.txt", bytes.NewBufferString(ts1)); err != nil {
t.Errorf("AttachReader() failed. Expected no error, got: %s", err.Error())
return
}
if err := m.EmbedReader("embedded.txt", bytes.NewBufferString(ts2)); err != nil {
t.Errorf("EmbedReader() failed. Expected no error, got: %s", err.Error())
return
}
obuf1 := &bytes.Buffer{}
obuf2 := &bytes.Buffer{}
_, err := m.WriteTo(obuf1)
if err != nil {
t.Errorf("WriteTo to first output buffer failed: %s", err)
}
_, err = m.WriteTo(obuf2)
if err != nil {
t.Errorf("WriteTo to second output buffer failed: %s", err)
}
if !strings.Contains(obuf1.String(), "VGhpcyBpcyBhIHRlc3Qgc3RyaW5n") {
t.Errorf("Expected file attachment string not found in first output buffer")
}
if !strings.Contains(obuf2.String(), "VGhpcyBpcyBhIHRlc3Qgc3RyaW5n") {
t.Errorf("Expected file attachment string not found in second output buffer")
}
if !strings.Contains(obuf1.String(), "QW5vdGhlciB0ZXN0IHN0cmluZw==") {
t.Errorf("Expected embedded file string not found in first output buffer")
}
if !strings.Contains(obuf2.String(), "QW5vdGhlciB0ZXN0IHN0cmluZw==") {
t.Errorf("Expected embded file string not found in second output buffer")
}
}
// TestMsg_AttachEmbedReadSeeker_consecutive tests the Msg.AttachReadSeeker and
// Msg.EmbedReadSeeker methods with consecutive calls to Msg.WriteTo to make
// sure the attachments are not lost (see Github issue #110)
func TestMsg_AttachEmbedReadSeeker_consecutive(t *testing.T) {
ts1 := []byte("This is a test string")
ts2 := []byte("Another test string")
m := NewMsg()
m.AttachReadSeeker("attachment.txt", bytes.NewReader(ts1))
m.EmbedReadSeeker("embedded.txt", bytes.NewReader(ts2))
obuf1 := &bytes.Buffer{}
obuf2 := &bytes.Buffer{}
_, err := m.WriteTo(obuf1)
if err != nil {
t.Errorf("WriteTo to first output buffer failed: %s", err)
}
_, err = m.WriteTo(obuf2)
if err != nil {
t.Errorf("WriteTo to second output buffer failed: %s", err)
}
if !strings.Contains(obuf1.String(), "VGhpcyBpcyBhIHRlc3Qgc3RyaW5n") {
t.Errorf("Expected file attachment string not found in first output buffer")
}
if !strings.Contains(obuf2.String(), "VGhpcyBpcyBhIHRlc3Qgc3RyaW5n") {
t.Errorf("Expected file attachment string not found in second output buffer")
}
if !strings.Contains(obuf1.String(), "QW5vdGhlciB0ZXN0IHN0cmluZw==") {
t.Errorf("Expected embedded file string not found in first output buffer")
}
if !strings.Contains(obuf2.String(), "QW5vdGhlciB0ZXN0IHN0cmluZw==") {
t.Errorf("Expected embded file string not found in second output buffer")
}
}
// TestMsg_AttachReadSeeker tests the Msg.AttachReadSeeker method
func TestMsg_AttachReadSeeker(t *testing.T) {
m := NewMsg()
ts := []byte("This is a test string")
r := bytes.NewReader(ts)
m.AttachReadSeeker("testfile.txt", r)
if len(m.attachments) != 1 {
t.Errorf("AttachReadSeeker() failed. Number of attachments expected: %d, got: %d", 1,
len(m.attachments))
return
}
file := m.attachments[0]
if file == nil {
t.Errorf("AttachReadSeeker() failed. Attachment file pointer is nil")
return
}
if file.Name != "testfile.txt" {
t.Errorf("AttachReadSeeker() failed. Expected file name: %s, got: %s", "testfile.txt",
file.Name)
}
wbuf := bytes.Buffer{}
if _, err := file.Writer(&wbuf); err != nil {
t.Errorf("execute WriterFunc failed: %s", err)
}
if wbuf.String() != string(ts) {
t.Errorf("AttachReadSeeker() failed. Expected string: %q, got: %q", ts, wbuf.String())
}
}
// TestMsg_EmbedReadSeeker tests the Msg.EmbedReadSeeker method
func TestMsg_EmbedReadSeeker(t *testing.T) {
m := NewMsg()
ts := []byte("This is a test string")
r := bytes.NewReader(ts)
m.EmbedReadSeeker("testfile.txt", r)
if len(m.embeds) != 1 {
t.Errorf("EmbedReadSeeker() failed. Number of attachments expected: %d, got: %d", 1,
len(m.embeds))
return
}
file := m.embeds[0]
if file == nil {
t.Errorf("EmbedReadSeeker() failed. Embedded file pointer is nil")
return
}
if file.Name != "testfile.txt" {
t.Errorf("EmbedReadSeeker() failed. Expected file name: %s, got: %s", "testfile.txt",
file.Name)
}
wbuf := bytes.Buffer{}
if _, err := file.Writer(&wbuf); err != nil {
t.Errorf("execute WriterFunc failed: %s", err)
}
if wbuf.String() != string(ts) {
t.Errorf("EmbedReadSeeker() failed. Expected string: %q, got: %q", ts, wbuf.String())
}
}
// TestMsg_ToFromString tests Msg.ToFromString in different scenarios
func TestMsg_ToFromString(t *testing.T) {
tests := []struct {
n string
v string
w []*mail.Address
sf bool
}{
{"valid single address", "test@test.com", []*mail.Address{
{Name: "", Address: "test@test.com"},
}, false},
{
"valid multiple addresses", "test@test.com,test2@example.com",
[]*mail.Address{
{Name: "", Address: "test@test.com"},
{Name: "", Address: "test2@example.com"},
},
false,
},
{
"valid multiple addresses with space and name",
`test@test.com, "Toni Tester" <test2@example.com>`,
[]*mail.Address{
{Name: "", Address: "test@test.com"},
{Name: "Toni Tester", Address: "test2@example.com"},
},
false,
},
{
"invalid and valid multiple addresses", "test@test.com,test2#example.com", nil,
true,
},
}
for _, tt := range tests {
t.Run(tt.n, func(t *testing.T) {
m := NewMsg()
if err := m.ToFromString(tt.v); err != nil && !tt.sf {
t.Errorf("Msg.ToFromString failed: %s", err)
return
}
mto := m.GetTo()
if len(mto) != len(tt.w) {
t.Errorf("Msg.ToFromString failed, expected len: %d, got: %d", len(tt.w),
len(mto))
return
}
for i := range mto {
w := tt.w[i]
g := mto[i]
if w.String() != g.String() {
t.Errorf("Msg.ToFromString failed, expected address: %s, got: %s",
w.String(), g.String())
}
}
})
}
}
// TestMsg_CcFromString tests Msg.CcFromString in different scenarios
func TestMsg_CcFromString(t *testing.T) {
tests := []struct {
n string
v string
w []*mail.Address
sf bool
}{
{"valid single address", "test@test.com", []*mail.Address{
{Name: "", Address: "test@test.com"},
}, false},
{
"valid multiple addresses", "test@test.com,test2@example.com",
[]*mail.Address{
{Name: "", Address: "test@test.com"},
{Name: "", Address: "test2@example.com"},
},
false,
},
{
"valid multiple addresses with space and name",
`test@test.com, "Toni Tester" <test2@example.com>`,
[]*mail.Address{
{Name: "", Address: "test@test.com"},
{Name: "Toni Tester", Address: "test2@example.com"},
},
false,
},
{
"invalid and valid multiple addresses", "test@test.com,test2#example.com", nil,
true,
},
}
for _, tt := range tests {
t.Run(tt.n, func(t *testing.T) {
m := NewMsg()
if err := m.CcFromString(tt.v); err != nil && !tt.sf {
t.Errorf("Msg.CcFromString failed: %s", err)
return
}
mto := m.GetCc()
if len(mto) != len(tt.w) {
t.Errorf("Msg.CcFromString failed, expected len: %d, got: %d", len(tt.w),
len(mto))
return
}
for i := range mto {
w := tt.w[i]
g := mto[i]
if w.String() != g.String() {
t.Errorf("Msg.CcFromString failed, expected address: %s, got: %s",
w.String(), g.String())
}
}
})
}
}
// TestMsg_BccFromString tests Msg.BccFromString in different scenarios
func TestMsg_BccFromString(t *testing.T) {
tests := []struct {
n string
v string
w []*mail.Address
sf bool
}{
{"valid single address", "test@test.com", []*mail.Address{
{Name: "", Address: "test@test.com"},
}, false},
{
"valid multiple addresses", "test@test.com,test2@example.com",
[]*mail.Address{
{Name: "", Address: "test@test.com"},
{Name: "", Address: "test2@example.com"},
},
false,
},
{
"valid multiple addresses with space and name",
`test@test.com, "Toni Tester" <test2@example.com>`,
[]*mail.Address{
{Name: "", Address: "test@test.com"},
{Name: "Toni Tester", Address: "test2@example.com"},
},
false,
},
{
"invalid and valid multiple addresses", "test@test.com,test2#example.com", nil,
true,
},
}
for _, tt := range tests {
t.Run(tt.n, func(t *testing.T) {
m := NewMsg()
if err := m.BccFromString(tt.v); err != nil && !tt.sf {
t.Errorf("Msg.BccFromString failed: %s", err)
return
}
mto := m.GetBcc()
if len(mto) != len(tt.w) {
t.Errorf("Msg.BccFromString failed, expected len: %d, got: %d", len(tt.w),
len(mto))
return
}
for i := range mto {
w := tt.w[i]
g := mto[i]
if w.String() != g.String() {
t.Errorf("Msg.BccFromString failed, expected address: %s, got: %s",
w.String(), g.String())
}
}
})
}
}
// TestMsg_checkUserAgent tests the checkUserAgent method of the Msg
func TestMsg_checkUserAgent(t *testing.T) {
tests := []struct {
name string
noDefaultUserAgent bool
genHeader map[Header][]string
wantUserAgent string
sf bool
}{
{
name: "check default user agent",
noDefaultUserAgent: false,
wantUserAgent: fmt.Sprintf("go-mail v%s // https://github.com/wneessen/go-mail", VERSION),
sf: false,
},
{
name: "check no default user agent",
noDefaultUserAgent: true,
wantUserAgent: "",
sf: true,
},
{
name: "check if ua and xm is already set",
noDefaultUserAgent: false,
genHeader: map[Header][]string{
HeaderUserAgent: {"custom UA"},
HeaderXMailer: {"custom XM"},
},
wantUserAgent: "custom UA",
sf: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
msg := &Msg{
noDefaultUserAgent: tt.noDefaultUserAgent,
genHeader: tt.genHeader,
}
msg.checkUserAgent()
gotUserAgent := ""
if val, ok := msg.genHeader[HeaderUserAgent]; ok {
gotUserAgent = val[0] // Assuming the first one is the needed value
}
if gotUserAgent != tt.wantUserAgent && !tt.sf {
t.Errorf("UserAgent got = %v, want = %v", gotUserAgent, tt.wantUserAgent)
}
})
}
}
// TestNewMsgWithMIMEVersion tests WithMIMEVersion and Msg.SetMIMEVersion
func TestNewMsgWithNoDefaultUserAgent(t *testing.T) {
m := NewMsg(WithNoDefaultUserAgent())
if m.noDefaultUserAgent != true {
t.Errorf("WithNoDefaultUserAgent() failed. Expected: %t, got: %t", true, false)
}
}
// Fuzzing tests
func FuzzMsg_Subject(f *testing.F) {
f.Add("Testsubject")
f.Add("")
f.Add("This is a longer test subject.")
f.Add("Let's add some umlauts: üäöß")
f.Add("Or even emojis: ☝️💪👍")
f.Fuzz(func(t *testing.T, data string) {
m := NewMsg()
m.Subject(data)
m.Reset()
})
}
func FuzzMsg_From(f *testing.F) {
f.Add("Toni Tester <toni@tester.com>")
f.Add("<tester@example.com>")
f.Add("mail@server.com")
f.Fuzz(func(t *testing.T, data string) {
m := NewMsg()
if err := m.From(data); err != nil &&
!strings.Contains(err.Error(), "failed to parse mail address") {
t.Errorf("failed set set FROM address: %s", err)
}
m.Reset()
})
}
*/
type uppercaseMiddleware struct{}
func (mw uppercaseMiddleware) Handle(m *Msg) *Msg {
s, ok := m.genHeader[HeaderSubject]
if !ok {
fmt.Println("can't find the subject header")
}
if s == nil || len(s) < 1 {
s = append(s, "")
}
m.Subject(strings.ToUpper(s[0]))
return m
}
func (mw uppercaseMiddleware) Type() MiddlewareType {
return "uppercase"
}
type encodeMiddleware struct{}
func (mw encodeMiddleware) Handle(m *Msg) *Msg {
s, ok := m.genHeader[HeaderSubject]
if !ok {
fmt.Println("can't find the subject header")
}
if s == nil || len(s) < 1 {
s = append(s, "")
}
m.Subject(strings.Replace(s[0], "a", "@", -1))
return m
}
func (mw encodeMiddleware) Type() MiddlewareType {
return "encode"
}
// failReadWriteSeekCloser is a type that always returns an error. It satisfies the io.Reader, io.Writer
// io.Closer, io.Seeker, io.WriteSeeker, io.ReadSeeker, io.ReadCloser and io.WriteCloser interfaces
type failReadWriteSeekCloser struct{}
// Write satisfies the io.Writer interface for the failReadWriteSeekCloser type
func (failReadWriteSeekCloser) Write([]byte) (int, error) {
return 0, errors.New("intentional write failure")
}
// Read satisfies the io.Reader interface for the failReadWriteSeekCloser type
func (failReadWriteSeekCloser) Read([]byte) (int, error) {
return 0, errors.New("intentional read failure")
}
// Seek satisfies the io.Seeker interface for the failReadWriteSeekCloser type
func (failReadWriteSeekCloser) Seek(int64, int) (int64, error) {
return 0, errors.New("intentional seek failure")
}
// Close satisfies the io.Closer interface for the failReadWriteSeekCloser type
func (failReadWriteSeekCloser) Close() error {
return errors.New("intentional close failure")
}
// checkAddrHeader verifies the correctness of an AddrHeader in a Msg based on the provided criteria.
// It checks whether the AddrHeader contains the correct address, name, and number of fields.
func checkAddrHeader(t *testing.T, message *Msg, header AddrHeader, fn string, field, wantFields int,
wantMail, wantName string,
) {
t.Helper()
addresses, ok := message.addrHeader[header]
if !ok {
t.Fatalf("failed to exec %s, addrHeader field is not set", fn)
}
if len(addresses) != wantFields {
t.Fatalf("failed to exec %s, addrHeader value count is: %d, want: %d", fn, len(addresses), field)
}
if addresses[field].Address != wantMail {
t.Errorf("failed to exec %s, addrHeader value is %s, want: %s", fn, addresses[field].Address, wantMail)
}
wantString := fmt.Sprintf(`<%s>`, wantMail)
if wantName != "" {
wantString = fmt.Sprintf(`%q <%s>`, wantName, wantMail)
}
if addresses[field].String() != wantString {
t.Errorf("failed to exec %s, addrHeader value is %s, want: %s", fn, addresses[field].String(), wantString)
}
if addresses[field].Name != wantName {
t.Errorf("failed to exec %s, addrHeader name is %s, want: %s", fn, addresses[field].Name, wantName)
}
}
// checkGenHeader validates the generated header in an email message, verifying its presence and expected values.
func checkGenHeader(t *testing.T, message *Msg, header Header, fn string, field, wantFields int,
wantVal string,
) {
t.Helper()
values, ok := message.genHeader[header]
if !ok {
t.Fatalf("failed to exec %s, genHeader field is not set", fn)
}
if len(values) != wantFields {
t.Fatalf("failed to exec %s, genHeader value count is: %d, want: %d", fn, len(values), field)
}
if values[field] != wantVal {
t.Errorf("failed to exec %s, genHeader value is %s, want: %s", fn, values[field], wantVal)
}
}
// hasSendmail checks if the /usr/sbin/sendmail file exists and is executable. Returns true if conditions are met.
func hasSendmail() bool {
sm, err := os.Stat(SendmailPath)
if err == nil {
if sm.Mode()&0o111 != 0 {
return true
}
}
return false
}
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