mirror of
https://github.com/wneessen/go-mail.git
synced 2024-12-23 02:50:39 +01:00
Refactor client test to enhance coverage and clarity
Reorganized and refactored tests for `NewClient` by adding individual test cases for different client creation scenarios, including various options and validation. Improved clarity and coverage by isolating cases, enhancing error messages, and removing redundancy.
This commit is contained in:
parent
1c8b2904f5
commit
3251d74c36
GPG key ID:
385AC9889632126E
1 changed files with 464 additions and 74 deletions
538
client_test.go
538
client_test.go
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@ -5,17 +5,11 @@
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package mail
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import (
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"bufio"
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"context"
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"crypto/tls"
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"errors"
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"fmt"
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"io"
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"net"
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"os"
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"strconv"
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"strings"
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"sync"
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"reflect"
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"testing"
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"time"
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@ -36,54 +30,470 @@ const (
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TestServerPortBase = 2025
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)
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// TestNewClient tests the NewClient() method with its default options
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func TestNewClient(t *testing.T) {
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host := "mail.example.com"
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tests := []struct {
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name string
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host string
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shouldfail bool
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}{
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{"Default", "mail.example.com", false},
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{"Empty host should fail", "", true},
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}
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t.Run("create new Client", func(t *testing.T) {
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client, err := NewClient(DefaultHost)
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if err != nil {
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t.Fatalf("failed to create new client: %s", err)
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}
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if client.smtpAuthType != SMTPAuthNoAuth {
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t.Errorf("new Client failed. Expected smtpAuthType: %s, got: %s", SMTPAuthNoAuth,
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client.smtpAuthType)
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}
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if client.connTimeout != DefaultTimeout {
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t.Errorf("new Client failed. Expected connTimeout: %s, got: %s", DefaultTimeout.String(),
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client.connTimeout.String())
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}
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if client.host != DefaultHost {
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t.Errorf("new Client failed. Expected host: %s, got: %s", DefaultHost, client.host)
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}
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if client.port != DefaultPort {
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t.Errorf("new Client failed. Expected port: %d, got: %d", DefaultPort, client.port)
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}
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if client.tlsconfig == nil {
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t.Fatal("new Client failed. Expected tlsconfig but got nil")
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}
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if client.tlsconfig.MinVersion != DefaultTLSMinVersion {
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t.Errorf("new Client failed. Expected tlsconfig min TLS version: %d, got: %d",
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DefaultTLSMinVersion, client.tlsconfig.MinVersion)
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}
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if client.tlsconfig.ServerName != DefaultHost {
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t.Errorf("new Client failed. Expected tlsconfig server name: %s, got: %s",
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DefaultHost, client.tlsconfig.ServerName)
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}
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if client.tlspolicy != DefaultTLSPolicy {
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t.Errorf("new Client failed. Expected tlsconfig policy: %s, got: %s", DefaultTLSPolicy,
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client.tlspolicy)
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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c, err := NewClient(tt.host)
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if err != nil && !tt.shouldfail {
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t.Errorf("failed to create new client: %s", err)
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return
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}
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if c.host != tt.host {
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t.Errorf("failed to create new client. Host expected: %s, got: %s", host, c.host)
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}
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if c.connTimeout != DefaultTimeout {
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t.Errorf("failed to create new client. Timeout expected: %s, got: %s", DefaultTimeout.String(),
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c.connTimeout.String())
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}
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if c.port != DefaultPort {
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t.Errorf("failed to create new client. Port expected: %d, got: %d", DefaultPort, c.port)
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}
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if c.tlspolicy != TLSMandatory {
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t.Errorf("failed to create new client. TLS policy expected: %d, got: %d", TLSMandatory, c.tlspolicy)
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}
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if c.tlsconfig.ServerName != tt.host {
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t.Errorf("failed to create new client. TLS config host expected: %s, got: %s",
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host, c.tlsconfig.ServerName)
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}
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if c.tlsconfig.MinVersion != DefaultTLSMinVersion {
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t.Errorf("failed to create new client. TLS config min versino expected: %d, got: %d",
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DefaultTLSMinVersion, c.tlsconfig.MinVersion)
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}
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if c.ServerAddr() != fmt.Sprintf("%s:%d", tt.host, c.port) {
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t.Errorf("failed to create new client. c.ServerAddr() expected: %s, got: %s",
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fmt.Sprintf("%s:%d", tt.host, c.port), c.ServerAddr())
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}
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})
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}
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hostname, err := os.Hostname()
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if err != nil {
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t.Fatalf("failed to get hostname: %s", err)
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}
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if client.helo != hostname {
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t.Errorf("new Client failed. Expected helo: %s, got: %s", hostname, client.helo)
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}
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})
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t.Run("NewClient with empty hostname should fail", func(t *testing.T) {
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_, err := NewClient("")
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if err == nil {
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t.Fatalf("NewClient with empty hostname should fail")
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}
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if !errors.Is(err, ErrNoHostname) {
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t.Errorf("NewClient with empty hostname should fail with error: %s, got: %s", ErrNoHostname, err)
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}
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})
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t.Run("NewClient with option", func(t *testing.T) {
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hostname := "mail.example.com"
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tests := []struct {
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name string
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option Option
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expectFunc func(c *Client) error
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shouldfail bool
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expectErr *error
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}{
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{"nil option", nil, nil, true, nil},
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{
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"WithPort", WithPort(465),
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func(c *Client) error {
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if c.port != 465 {
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return fmt.Errorf("failed to set custom port. Want: %d, got: %d", 465, c.port)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithPort but too high port number", WithPort(100000), nil, true,
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&ErrInvalidPort,
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},
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{
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"WithTimeout", WithTimeout(time.Second * 100),
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func(c *Client) error {
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if c.connTimeout != time.Second*100 {
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return fmt.Errorf("failed to set custom timeout. Want: %d, got: %d", time.Second*100,
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c.connTimeout)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithTimeout but invalid timeout", WithTimeout(-10), nil, true,
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&ErrInvalidTimeout,
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},
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{
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"WithSSL", WithSSL(),
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func(c *Client) error {
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if !c.useSSL {
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return fmt.Errorf("failed to set useSSL. Want: %t, got: %t", true, c.useSSL)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithSSLPort with no fallback", WithSSLPort(false),
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func(c *Client) error {
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if !c.useSSL {
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return fmt.Errorf("failed to set useSSL. Want: %t, got: %t", true, c.useSSL)
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}
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if c.port != 465 {
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return fmt.Errorf("failed to set ssl port. Want: %d, got: %d", 465, c.port)
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}
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if c.fallbackPort != 0 {
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return fmt.Errorf("failed to set ssl fallbackport. Want: %d, got: %d", 0,
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c.fallbackPort)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithSSLPort with fallback", WithSSLPort(true),
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func(c *Client) error {
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if !c.useSSL {
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return fmt.Errorf("failed to set useSSL. Want: %t, got: %t", true, c.useSSL)
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}
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if c.port != 465 {
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return fmt.Errorf("failed to set ssl port. Want: %d, got: %d", 465, c.port)
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}
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if c.fallbackPort != 25 {
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return fmt.Errorf("failed to set ssl fallbackport. Want: %d, got: %d", 0,
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c.fallbackPort)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithDebugLog", WithDebugLog(),
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func(c *Client) error {
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if !c.useDebugLog {
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return fmt.Errorf("failed to set enable debug log. Want: %t, got: %t", true,
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c.useDebugLog)
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}
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if c.logAuthData {
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return fmt.Errorf("failed to set enable debug log. Want logAuthData: %t, got: %t", true,
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c.logAuthData)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithLogger log.Stdlog", WithLogger(log.New(os.Stderr, log.LevelDebug)),
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func(c *Client) error {
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if c.logger == nil {
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return errors.New("failed to set logger. Want logger bug got got nil")
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}
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loggerType := reflect.TypeOf(c.logger).String()
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if loggerType != "*log.Stdlog" {
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return fmt.Errorf("failed to set logger. Want logger type: %s, got: %s",
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"*log.Stdlog", loggerType)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithLogger log.JSONlog", WithLogger(log.NewJSON(os.Stderr, log.LevelDebug)),
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func(c *Client) error {
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if c.logger == nil {
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return errors.New("failed to set logger. Want logger bug got got nil")
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}
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loggerType := reflect.TypeOf(c.logger).String()
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if loggerType != "*log.JSONlog" {
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return fmt.Errorf("failed to set logger. Want logger type: %s, got: %s",
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"*log.JSONlog", loggerType)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithHELO", WithHELO(hostname),
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func(c *Client) error {
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if c.helo != hostname {
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return fmt.Errorf("failed to set custom HELO. Want: %s, got: %s", hostname, c.helo)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithHELO fail with empty hostname", WithHELO(""), nil,
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true, &ErrInvalidHELO,
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},
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{
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"WithTLSPolicy TLSMandatory", WithTLSPolicy(TLSMandatory),
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func(c *Client) error {
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if c.tlspolicy != TLSMandatory {
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return fmt.Errorf("failed to set custom TLS policy. Want: %s, got: %s", TLSMandatory,
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c.tlspolicy)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithTLSPolicy TLSOpportunistic", WithTLSPolicy(TLSOpportunistic),
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func(c *Client) error {
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if c.tlspolicy != TLSOpportunistic {
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return fmt.Errorf("failed to set custom TLS policy. Want: %s, got: %s", TLSOpportunistic,
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c.tlspolicy)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithTLSPolicy NoTLS", WithTLSPolicy(NoTLS),
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func(c *Client) error {
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if c.tlspolicy != NoTLS {
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return fmt.Errorf("failed to set custom TLS policy. Want: %s, got: %s", TLSOpportunistic,
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c.tlspolicy)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithTLSPortPolicy TLSMandatory", WithTLSPortPolicy(TLSMandatory),
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func(c *Client) error {
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if c.tlspolicy != TLSMandatory {
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return fmt.Errorf("failed to set custom TLS policy. Want: %s, got: %s", TLSMandatory,
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c.tlspolicy)
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}
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if c.port != 587 {
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return fmt.Errorf("failed to set custom TLS policy. Want port: %d, got: %d", 587,
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c.port)
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}
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if c.fallbackPort != 0 {
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return fmt.Errorf("failed to set custom TLS policy. Want fallback port: %d, got: %d",
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0, c.fallbackPort)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithTLSPortPolicy TLSOpportunistic", WithTLSPortPolicy(TLSOpportunistic),
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func(c *Client) error {
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if c.tlspolicy != TLSOpportunistic {
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return fmt.Errorf("failed to set custom TLS policy. Want: %s, got: %s", TLSOpportunistic,
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c.tlspolicy)
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}
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if c.port != 587 {
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return fmt.Errorf("failed to set custom TLS policy. Want port: %d, got: %d", 587,
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c.port)
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}
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if c.fallbackPort != 25 {
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return fmt.Errorf("failed to set custom TLS policy. Want fallback port: %d, got: %d",
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25, c.fallbackPort)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithTLSPortPolicy NoTLS", WithTLSPortPolicy(NoTLS),
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func(c *Client) error {
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if c.tlspolicy != NoTLS {
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return fmt.Errorf("failed to set custom TLS policy. Want: %s, got: %s", TLSOpportunistic,
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c.tlspolicy)
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}
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if c.port != 25 {
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return fmt.Errorf("failed to set custom TLS policy. Want port: %d, got: %d", 587,
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c.port)
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}
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if c.fallbackPort != 0 {
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return fmt.Errorf("failed to set custom TLS policy. Want fallback port: %d, got: %d",
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25, c.fallbackPort)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithTLSConfig with empty tls.Config", WithTLSConfig(&tls.Config{}),
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func(c *Client) error {
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if c.tlsconfig == nil {
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return errors.New("failed to set custom TLS config. Wanted policy but got nil")
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}
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return nil
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},
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false, nil,
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},
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{
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"WithTLSConfig with custom tls.Config", WithTLSConfig(&tls.Config{ServerName: hostname}),
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func(c *Client) error {
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if c.tlsconfig == nil {
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return errors.New("failed to set custom TLS config. Wanted policy but got nil")
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}
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if c.tlsconfig.ServerName != hostname {
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return fmt.Errorf("failed to set custom TLS config. Want hostname: %s, got: %s",
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hostname, c.tlsconfig.ServerName)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithTLSConfig with nil", WithTLSConfig(nil), nil,
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true, &ErrInvalidTLSConfig,
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},
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{
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"WithSMTPAuthCustom with PLAIN auth",
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WithSMTPAuthCustom(smtp.PlainAuth("", "", "", "", false)),
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func(c *Client) error {
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if c.smtpAuthType != SMTPAuthCustom {
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return fmt.Errorf("failed to set custom SMTP auth method. Want smtp auth type: %s, "+
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"got: %s", SMTPAuthCustom, c.smtpAuthType)
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}
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if c.smtpAuth == nil {
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return errors.New("failed to set custom SMTP auth method. Wanted smtp auth method but" +
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" got nil")
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}
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smtpAuthType := reflect.TypeOf(c.smtpAuth).String()
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if smtpAuthType != "*smtp.plainAuth" {
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return fmt.Errorf("failed to set custom SMTP auth method. Want smtp auth method of type: %s, "+
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"got: %s", "*smtp.plainAuth", smtpAuthType)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithSMTPAuthCustom with LOGIN auth",
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WithSMTPAuthCustom(smtp.LoginAuth("", "", "", false)),
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func(c *Client) error {
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if c.smtpAuthType != SMTPAuthCustom {
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return fmt.Errorf("failed to set custom SMTP auth method. Want smtp auth type: %s, "+
|
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"got: %s", SMTPAuthCustom, c.smtpAuthType)
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}
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if c.smtpAuth == nil {
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return errors.New("failed to set custom SMTP auth method. Wanted smtp auth method but" +
|
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" got nil")
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}
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smtpAuthType := reflect.TypeOf(c.smtpAuth).String()
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if smtpAuthType != "*smtp.loginAuth" {
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return fmt.Errorf("failed to set custom SMTP auth method. Want smtp auth method of type: %s, "+
|
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"got: %s", "*smtp.loginAuth", smtpAuthType)
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}
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return nil
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},
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false, nil,
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},
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{
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"WithSMTPAuthCustom with nil", WithSMTPAuthCustom(nil), nil,
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true, &ErrSMTPAuthMethodIsNil,
|
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},
|
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{
|
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"WithUsername", WithUsername("toni.tester"),
|
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func(c *Client) error {
|
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if c.user != "toni.tester" {
|
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return fmt.Errorf("failed to set username. Want username: %s, got: %s",
|
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"toni.tester", c.user)
|
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}
|
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return nil
|
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},
|
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false, nil,
|
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},
|
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{
|
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"WithPassword", WithPassword("sU*p3rS3cr3t"),
|
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func(c *Client) error {
|
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if c.pass != "sU*p3rS3cr3t" {
|
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return fmt.Errorf("failed to set password. Want password: %s, got: %s",
|
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"sU*p3rS3cr3t", c.pass)
|
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}
|
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return nil
|
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},
|
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false, nil,
|
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},
|
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{
|
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"WithDSN", WithDSN(),
|
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func(c *Client) error {
|
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if c.requestDSN != true {
|
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return fmt.Errorf("failed to enable DSN. Want requestDSN: %t, got: %t", true,
|
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c.requestDSN)
|
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}
|
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if c.dsnReturnType != DSNMailReturnFull {
|
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return fmt.Errorf("failed to enable DSN. Want dsnReturnType: %s, got: %s",
|
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DSNMailReturnFull, c.dsnReturnType)
|
||||
}
|
||||
if len(c.dsnRcptNotifyType) != 2 {
|
||||
return fmt.Errorf("failed to enable DSN. Want 2 default DSN Rcpt Notify types, got: %d",
|
||||
len(c.dsnRcptNotifyType))
|
||||
}
|
||||
if c.dsnRcptNotifyType[0] != string(DSNRcptNotifyFailure) {
|
||||
return fmt.Errorf("failed to enable DSN. Want DSN Rcpt Notify Failure type: %s, got: %s",
|
||||
string(DSNRcptNotifyFailure), c.dsnRcptNotifyType[0])
|
||||
}
|
||||
if c.dsnRcptNotifyType[1] != string(DSNRcptNotifySuccess) {
|
||||
return fmt.Errorf("failed to enable DSN. Want DSN Rcpt Notify Success type: %s, got: %s",
|
||||
string(DSNRcptNotifySuccess), c.dsnRcptNotifyType[1])
|
||||
}
|
||||
return nil
|
||||
},
|
||||
false, nil,
|
||||
},
|
||||
}
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
client, err := NewClient(DefaultHost, tt.option)
|
||||
if !tt.shouldfail && err != nil {
|
||||
t.Fatalf("failed to create new client: %s", err)
|
||||
}
|
||||
if tt.shouldfail && tt.expectErr != nil {
|
||||
if !errors.Is(err, *tt.expectErr) {
|
||||
t.Errorf("error for NewClient mismatch. Expected: %s, got: %s",
|
||||
*tt.expectErr, err)
|
||||
}
|
||||
}
|
||||
if tt.expectFunc != nil {
|
||||
if err = tt.expectFunc(client); err != nil {
|
||||
t.Errorf("NewClient with custom option failed: %s", err)
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
})
|
||||
t.Run("NewClient WithSMTPAuth", func(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
option Option
|
||||
expected SMTPAuthType
|
||||
}{
|
||||
{"CRAM-MD5", WithSMTPAuth(SMTPAuthCramMD5), SMTPAuthCramMD5},
|
||||
{"LOGIN", WithSMTPAuth(SMTPAuthLogin), SMTPAuthLogin},
|
||||
{"LOGIN-NOENC", WithSMTPAuth(SMTPAuthLoginNoEnc), SMTPAuthLoginNoEnc},
|
||||
{"NOAUTH", WithSMTPAuth(SMTPAuthNoAuth), SMTPAuthNoAuth},
|
||||
{"PLAIN", WithSMTPAuth(SMTPAuthPlain), SMTPAuthPlain},
|
||||
{"PLAIN-NOENC", WithSMTPAuth(SMTPAuthPlainNoEnc), SMTPAuthPlainNoEnc},
|
||||
{"SCRAM-SHA-1", WithSMTPAuth(SMTPAuthSCRAMSHA1), SMTPAuthSCRAMSHA1},
|
||||
{"SCRAM-SHA-1-PLUS", WithSMTPAuth(SMTPAuthSCRAMSHA1PLUS), SMTPAuthSCRAMSHA1PLUS},
|
||||
{"SCRAM-SHA-256", WithSMTPAuth(SMTPAuthSCRAMSHA256), SMTPAuthSCRAMSHA256},
|
||||
{"SCRAM-SHA-256-PLUS", WithSMTPAuth(SMTPAuthSCRAMSHA256PLUS), SMTPAuthSCRAMSHA256PLUS},
|
||||
{"XOAUTH2", WithSMTPAuth(SMTPAuthXOAUTH2), SMTPAuthXOAUTH2},
|
||||
}
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
client, err := NewClient(DefaultHost, tt.option)
|
||||
if err != nil {
|
||||
t.Fatalf("failed to create new client: %s", err)
|
||||
}
|
||||
if client.smtpAuthType != tt.expected {
|
||||
t.Errorf("failed to set custom SMTP auth type. Want: %s, got: %s",
|
||||
tt.expected, client.smtpAuthType)
|
||||
}
|
||||
})
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
// TestNewClient tests the NewClient() method with its custom options
|
||||
func TestNewClientWithOptions(t *testing.T) {
|
||||
host := "mail.example.com"
|
||||
|
|
@ -92,29 +502,6 @@ func TestNewClientWithOptions(t *testing.T) {
|
|||
option Option
|
||||
shouldfail bool
|
||||
}{
|
||||
{"nil option", nil, true},
|
||||
{"WithPort()", WithPort(465), false},
|
||||
{"WithPort(); port is too high", WithPort(100000), true},
|
||||
{"WithTimeout()", WithTimeout(time.Second * 5), false},
|
||||
{"WithTimeout()", WithTimeout(-10), true},
|
||||
{"WithSSL()", WithSSL(), false},
|
||||
{"WithSSLPort(false)", WithSSLPort(false), false},
|
||||
{"WithSSLPort(true)", WithSSLPort(true), false},
|
||||
{"WithHELO()", WithHELO(host), false},
|
||||
{"WithHELO(); helo is empty", WithHELO(""), true},
|
||||
{"WithTLSPolicy()", WithTLSPolicy(TLSOpportunistic), false},
|
||||
{"WithTLSPortPolicy()", WithTLSPortPolicy(TLSOpportunistic), false},
|
||||
{"WithTLSConfig()", WithTLSConfig(&tls.Config{}), false},
|
||||
{"WithTLSConfig(); config is nil", WithTLSConfig(nil), true},
|
||||
{"WithSMTPAuth(NoAuth)", WithSMTPAuth(SMTPAuthNoAuth), false},
|
||||
{"WithSMTPAuth()", WithSMTPAuth(SMTPAuthLogin), false},
|
||||
{
|
||||
"WithSMTPAuthCustom()",
|
||||
WithSMTPAuthCustom(smtp.PlainAuth("", "", "", "", false)),
|
||||
false,
|
||||
},
|
||||
{"WithUsername()", WithUsername("test"), false},
|
||||
{"WithPassword()", WithPassword("test"), false},
|
||||
{"WithDSN()", WithDSN(), false},
|
||||
{"WithDSNMailReturnType()", WithDSNMailReturnType(DSNMailReturnFull), false},
|
||||
{"WithDSNMailReturnType() wrong option", WithDSNMailReturnType("FAIL"), true},
|
||||
|
|
@ -2806,3 +3193,6 @@ func handleTestServerConnection(connection net.Conn, featureSet string, failRese
|
|||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
*/
|
||||
|
|
|
|||
Loading…
Reference in a new issue