227 lines
5.6 KiB
Go
227 lines
5.6 KiB
Go
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package example
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import (
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"testing"
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"time"
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mail "github.com/xhit/go-simple-mail/v2"
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)
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// Some variables to connect and the body.
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var (
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htmlBody = `<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>Hello Gophers!</title>
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</head>
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<body>
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<p>This is the <b>Go gopher</b>.</p>
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<p><img src="cid:Gopher.png" alt="Go gopher" /></p>
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<p>Image created by Renee French</p>
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</body>
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</html>`
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host = "localhost"
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port = 25
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username = "test@example.com"
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password = "santiago"
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encryptionType = mail.EncryptionNone
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connectTimeout = 10 * time.Second
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sendTimeout = 10 * time.Second
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)
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// TestSendMailWithAttachment send a simple html email.
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func TestSendMail(t *testing.T) {
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client := mail.NewSMTPClient()
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//SMTP Client
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client.Host = host
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client.Port = port
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client.Username = username
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client.Password = password
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client.Encryption = encryptionType
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client.ConnectTimeout = connectTimeout
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client.SendTimeout = sendTimeout
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client.KeepAlive = false
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//Connect to client
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smtpClient, err := client.Connect()
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if err != nil {
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t.Error("Expected nil, got", err, "connecting to client")
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}
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//NOOP command, optional, used for avoid timeout when KeepAlive is true and you aren't sending mails.
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//Execute this command each 30 seconds is ideal for persistent connection
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err = smtpClient.Noop()
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if err != nil {
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t.Error("Expected nil, got", err, "noop to client")
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}
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//Create the email message
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email := mail.NewMSG()
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email.SetFrom("From Example <test@example.com>").
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AddTo("admin@example.com").
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SetSubject("New Go Email")
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email.SetBody(mail.TextHTML, htmlBody)
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email.AddAlternative(mail.TextPlain, "Hello Gophers!")
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//Some additional options to send
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email.SetSender("xhit@test.com")
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email.SetReplyTo("replyto@reply.com")
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email.SetReturnPath("test@example.com")
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email.AddCc("cc@example1.com")
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email.AddBcc("bcccc@example2.com")
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//Add inline too!
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email.Attach(&mail.File{FilePath: "C:/Users/sdelacruz/Pictures/Gopher.png", Inline: true})
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//Attach a file with path
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email.Attach(&mail.File{FilePath: "C:/Users/sdelacruz/Pictures/Gopher.png"})
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//Attach the file with a base64
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email.Attach(&mail.File{B64Data: "Zm9v", Name: "filename"})
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//Set a different date in header email
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email.SetDate("2015-04-28 10:32:00 CDT")
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//Send with low priority
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email.SetPriority(mail.PriorityLow)
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// always check error after send
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if email.Error != nil {
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t.Error("Expected nil, got", email.Error, "generating email")
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}
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//Pass the client to the email message to send it
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err = email.Send(smtpClient)
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//Get first error
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email.GetError()
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if err != nil {
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t.Error("Expected nil, got", err, "sending email")
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}
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}
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// TestSendMultipleEmails send multiple emails in same connection.
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func TestSendMultipleEmails(t *testing.T) {
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client := mail.NewSMTPClient()
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//SMTP Client
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client.Host = host
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client.Port = port
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client.Username = username
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client.Password = password
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client.Encryption = encryptionType
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client.ConnectTimeout = connectTimeout
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client.SendTimeout = sendTimeout
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//For authentication you can use AuthPlain, AuthLogin or AuthCRAMMD5
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client.Authentication = mail.AuthPlain
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//KeepAlive true because the connection need to be open for multiple emails
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//For avoid inactivity timeout, every 30 second you can send a NO OPERATION command to smtp client
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//use smtpClient.Client.Noop() after 30 second of inactivity in this example
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client.KeepAlive = true
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//Connect to client
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smtpClient, err := client.Connect()
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if err != nil {
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t.Error("Expected nil, got", err, "connecting to client")
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}
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toList := [3]string{"to1@example1.com", "to3@example2.com", "to4@example3.com"}
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for _, to := range toList {
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err = sendEmail(htmlBody, to, smtpClient)
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if err != nil {
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t.Error("Expected nil, got", err, "sending email")
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}
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}
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}
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func sendEmail(htmlBody string, to string, smtpClient *mail.SMTPClient) error {
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//Create the email message
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email := mail.NewMSG()
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email.SetFrom("From Example <from.email@example.com>").
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AddTo(to).
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SetSubject("New Go Email")
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//Get from each mail
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email.GetFrom()
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email.SetBody(mail.TextHTML, htmlBody)
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//Send with high priority
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email.SetPriority(mail.PriorityHigh)
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// always check error after send
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if email.Error != nil {
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return email.Error
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}
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//Pass the client to the email message to send it
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return email.Send(smtpClient)
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}
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// TestWithTLS using gmail port 587.
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func TestWithTLS(t *testing.T) {
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client := mail.NewSMTPClient()
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//SMTP Client
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client.Host = "smtp.gmail.com"
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client.Port = 587
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client.Username = "aaa@gmail.com"
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client.Password = "asdfghh"
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client.Encryption = mail.EncryptionSTARTTLS
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client.ConnectTimeout = 10 * time.Second
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client.SendTimeout = 10 * time.Second
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//KeepAlive is not settted because by default is false
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//Connect to client
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smtpClient, err := client.Connect()
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if err != nil {
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t.Error("Expected nil, got", err, "connecting to client")
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}
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err = sendEmail(htmlBody, "bbb@gmail.com", smtpClient)
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if err != nil {
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t.Error("Expected nil, got", err, "sending email")
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}
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}
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// TestWithTLS using gmail port 465.
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func TestWithSSL(t *testing.T) {
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client := mail.NewSMTPClient()
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//SMTP Client
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client.Host = "smtp.gmail.com"
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client.Port = 465
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client.Username = "aaa@gmail.com"
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client.Password = "asdfghh"
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client.Encryption = mail.EncryptionSSLTLS
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client.ConnectTimeout = 10 * time.Second
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client.SendTimeout = 10 * time.Second
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//KeepAlive is not settted because by default is false
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//Connect to client
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smtpClient, err := client.Connect()
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if err != nil {
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t.Error("Expected nil, got", err, "connecting to client")
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}
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err = sendEmail(htmlBody, "bbb@gmail.com", smtpClient)
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if err != nil {
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t.Error("Expected nil, got", err, "sending email")
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}
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}
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