go-mail/part_test.go

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// SPDX-FileCopyrightText: 2022-2023 The go-mail Authors
//
// SPDX-License-Identifier: MIT
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package mail
import (
"bytes"
"fmt"
"io"
"strings"
"testing"
)
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// TestPartEncoding tests the WithPartEncoding and Part.SetEncoding methods
func TestPartEncoding(t *testing.T) {
tests := []struct {
name string
enc Encoding
want string
}{
{"Part encoding: Base64", EncodingB64, "base64"},
{"Part encoding: Quoted-Printable", EncodingQP, "quoted-printable"},
{"Part encoding: 8bit", NoEncoding, "8bit"},
}
for _, tt := range tests {
m := NewMsg()
t.Run(tt.name, func(t *testing.T) {
part := m.newPart(TypeTextPlain, WithPartEncoding(tt.enc), nil)
if part == nil {
t.Errorf("newPart() WithPartEncoding() failed: no part returned")
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return
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}
if part.enc.String() != tt.want {
t.Errorf("newPart() WithPartEncoding() failed: expected encoding: %s, got: %s", tt.want,
part.enc.String())
}
part.enc = ""
part.SetEncoding(tt.enc)
if part.enc.String() != tt.want {
t.Errorf("newPart() SetEncoding() failed: expected encoding: %s, got: %s", tt.want,
part.enc.String())
}
})
}
}
// TestWithPartCharset tests the WithPartCharset method
func TestWithPartCharset(t *testing.T) {
tests := []struct {
name string
cs Charset
want string
}{
{"Part charset: UTF-8", CharsetUTF8, "UTF-8"},
{"Part charset: ISO-8859-1", CharsetISO88591, "ISO-8859-1"},
{"Part charset: empty", "", ""},
}
for _, tt := range tests {
m := NewMsg()
t.Run(tt.name, func(t *testing.T) {
part := m.newPart(TypeTextPlain, WithPartCharset(tt.cs), nil)
if part == nil {
t.Errorf("newPart() WithPartCharset() failed: no part returned")
return
}
if part.cset.String() != tt.want {
t.Errorf("newPart() WithPartCharset() failed: expected charset: %s, got: %s",
tt.want, part.cset.String())
}
})
}
}
// TestPart_WithPartContentDescription tests the WithPartContentDescription method
func TestPart_WithPartContentDescription(t *testing.T) {
tests := []struct {
name string
desc string
}{
{"Part description: test", "test"},
{"Part description: empty", ""},
}
for _, tt := range tests {
m := NewMsg()
t.Run(tt.name, func(t *testing.T) {
part := m.newPart(TypeTextPlain, WithPartContentDescription(tt.desc), nil)
if part == nil {
t.Errorf("newPart() WithPartContentDescription() failed: no part returned")
return
}
if part.desc != tt.desc {
t.Errorf("newPart() WithPartContentDescription() failed: expected: %s, got: %s", tt.desc,
part.desc)
}
part.desc = ""
part.SetDescription(tt.desc)
if part.desc != tt.desc {
t.Errorf("newPart() SetDescription() failed: expected: %s, got: %s", tt.desc, part.desc)
}
})
}
}
// TestPartContentType tests Part.SetContentType
func TestPart_SetContentType(t *testing.T) {
tests := []struct {
name string
ct ContentType
want string
}{
{"ContentType: text/plain", TypeTextPlain, "text/plain"},
{"ContentType: text/html", TypeTextHTML, "text/html"},
{"ContentType: application/json", "application/json", "application/json"},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
m := NewMsg()
m.SetBodyString(TypeTextPlain, "This is a test with ümläutß")
pl, err := getPartList(m)
if err != nil {
t.Errorf("failed: %s", err)
return
}
pl[0].SetContentType(tt.ct)
ct := pl[0].GetContentType()
if string(ct) != tt.want {
t.Errorf("SetContentType failed. Got: %s, expected: %s", string(ct), tt.want)
}
})
}
}
// TestPartEncoding tests Part.GetEncoding
func TestPart_GetEncoding(t *testing.T) {
tests := []struct {
name string
enc Encoding
want string
}{
{"Part encoding: Base64", EncodingB64, "base64"},
{"Part encoding: Quoted-Printable", EncodingQP, "quoted-printable"},
{"Part encoding: 8bit", NoEncoding, "8bit"},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
m := NewMsg()
m.SetBodyString(TypeTextPlain, "This is a test with ümläutß", WithPartEncoding(tt.enc))
pl, err := getPartList(m)
if err != nil {
t.Errorf("failed: %s", err)
return
}
e := pl[0].GetEncoding()
if e.String() != tt.want {
t.Errorf("Part.GetEncoding failed. Expected: %s, got: %s", tt.want, e.String())
}
})
}
}
// TestPart_GetContentType tests Part.GetContentType
func TestPart_GetContentType(t *testing.T) {
tests := []struct {
name string
ct ContentType
want string
}{
{"ContentType: text/plain", TypeTextPlain, "text/plain"},
{"ContentType: text/html", TypeTextHTML, "text/html"},
{"ContentType: application/json", "application/json", "application/json"},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
m := NewMsg()
m.SetBodyString(tt.ct, "This is a test with ümläutß")
pl, err := getPartList(m)
if err != nil {
t.Errorf("failed: %s", err)
return
}
c := pl[0].GetContentType()
if string(c) != tt.want {
t.Errorf("Part.GetContentType failed. Expected: %s, got: %s", tt.want, string(c))
}
})
}
}
// TestPart_GetWriteFunc tests Part.GetWriteFunc
func TestPart_GetWriteFunc(t *testing.T) {
c := "This is a test with ümläutß"
m := NewMsg()
m.SetBodyString(TypeTextPlain, c)
pl, err := getPartList(m)
if err != nil {
t.Errorf("failed: %s", err)
return
}
wf := pl[0].GetWriteFunc()
var b bytes.Buffer
if _, err := wf(&b); err != nil {
t.Errorf("failed to execute writefunc: %s", err)
}
if b.String() != c {
t.Errorf("GetWriteFunc failed. Expected: %s, got: %s", c, b.String())
}
}
// TestPart_GetContent tests Part.GetContent
func TestPart_GetContent(t *testing.T) {
c := "This is a test with ümläutß"
m := NewMsg()
m.SetBodyString(TypeTextPlain, c)
pl, err := getPartList(m)
if err != nil {
t.Errorf("failed: %s", err)
return
}
cb, err := pl[0].GetContent()
if err != nil {
t.Errorf("Part.GetContent failed: %s", err)
}
if string(cb) != c {
t.Errorf("Part.GetContent failed. Expected: %s, got: %s", c, string(cb))
}
}
// TestPart_GetContentBroken tests Part.GetContent
func TestPart_GetContentBroken(t *testing.T) {
c := "This is a test with ümläutß"
m := NewMsg()
m.SetBodyString(TypeTextPlain, c)
pl, err := getPartList(m)
if err != nil {
t.Errorf("failed: %s", err)
return
}
pl[0].w = func(io.Writer) (int64, error) {
return 0, fmt.Errorf("broken")
}
_, err = pl[0].GetContent()
if err == nil {
t.Errorf("Part.GetContent was supposed to failed, but didn't")
}
}
// TestPart_SetWriteFunc tests Part.SetWriteFunc
func TestPart_SetWriteFunc(t *testing.T) {
c := "This is a test with ümläutß"
m := NewMsg()
m.SetBodyString(TypeTextPlain, c)
pl, err := getPartList(m)
if err != nil {
t.Errorf("failed: %s", err)
return
}
cb, err := pl[0].GetContent()
if err != nil {
t.Errorf("Part.GetContent failed: %s", err)
}
pl[0].SetWriteFunc(func(w io.Writer) (int64, error) {
ns := strings.ToUpper(string(cb))
buf := bytes.NewBufferString(ns)
nb, err := w.Write(buf.Bytes())
return int64(nb), err
})
nc, err := pl[0].GetContent()
if err != nil {
t.Errorf("Part.GetContent failed: %s", err)
}
if string(nc) != strings.ToUpper(c) {
t.Errorf("SetWriteFunc failed. Expected: %s, got: %s", strings.ToUpper(c), string(nc))
}
}
// TestPart_SetContent tests Part.SetContent
func TestPart_SetContent(t *testing.T) {
c := "This is a test with ümläutß"
m := NewMsg()
m.SetBodyString(TypeTextPlain, c)
pl, err := getPartList(m)
if err != nil {
t.Errorf("failed: %s", err)
return
}
cb, err := pl[0].GetContent()
if err != nil {
t.Errorf("Part.GetContent failed: %s", err)
}
pl[0].SetContent(strings.ToUpper(string(cb)))
nc, err := pl[0].GetContent()
if err != nil {
t.Errorf("Part.GetContent failed: %s", err)
}
if string(nc) != strings.ToUpper(c) {
t.Errorf("SetContent failed. Expected: %s, got: %s", strings.ToUpper(c), string(nc))
}
}
// TestPart_SetDescription tests Part.SetDescription
func TestPart_SetDescription(t *testing.T) {
c := "This is a test"
d := "test-description"
m := NewMsg()
m.SetBodyString(TypeTextPlain, c)
pl, err := getPartList(m)
if err != nil {
t.Errorf("failed: %s", err)
return
}
pd := pl[0].GetDescription()
if pd != "" {
t.Errorf("Part.GetDescription failed. Expected empty description but got: %s", pd)
}
pl[0].SetDescription(d)
if pl[0].desc != d {
t.Errorf("Part.SetDescription failed. Expected desc to be: %s, got: %s", d, pd)
}
pd = pl[0].GetDescription()
if pd != d {
t.Errorf("Part.GetDescription failed. Expected: %s, got: %s", d, pd)
}
}
// TestPart_Delete tests Part.Delete
func TestPart_Delete(t *testing.T) {
c := "This is a test with ümläutß"
m := NewMsg()
m.SetBodyString(TypeTextPlain, c)
pl, err := getPartList(m)
if err != nil {
t.Errorf("failed: %s", err)
return
}
pl[0].Delete()
if !pl[0].del {
t.Errorf("Delete failed. Expected: %t, got: %t", true, pl[0].del)
}
}
// getPartList is a helper function
func getPartList(m *Msg) ([]*Part, error) {
pl := m.GetParts()
if len(pl) <= 0 {
return nil, fmt.Errorf("Msg.GetParts failed. Part list is empty")
}
return pl, nil
}
// TestPart_SetCharset tests Part.SetCharset method
func TestPart_SetCharset(t *testing.T) {
tests := []struct {
name string
cs Charset
want string
}{
{"Charset: UTF-8", CharsetUTF8, "UTF-8"},
{"Charset: ISO-8859-1", CharsetISO88591, "ISO-8859-1"},
{"Charset: empty", "", ""},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
m := NewMsg()
m.SetBodyString(TypeTextPlain, "This is a test with ümläutß")
pl, err := getPartList(m)
if err != nil {
t.Errorf("failed: %s", err)
return
}
pl[0].SetCharset(tt.cs)
cs := pl[0].GetCharset()
if string(cs) != tt.want {
t.Errorf("SetCharset failed. Got: %s, expected: %s", string(cs), tt.want)
}
})
}
}