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934 lines
29 KiB
Go
934 lines
29 KiB
Go
10 months ago
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package email
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import (
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"fmt"
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"strings"
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"testing"
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"bufio"
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"bytes"
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"crypto/rand"
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"io"
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"io/ioutil"
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"mime"
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"mime/multipart"
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"mime/quotedprintable"
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"net/mail"
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"net/smtp"
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"net/textproto"
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)
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func prepareEmail() *Email {
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e := NewEmail()
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e.From = "Jordan Wright <test@example.com>"
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e.To = []string{"test@example.com"}
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e.Bcc = []string{"test_bcc@example.com"}
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e.Cc = []string{"test_cc@example.com"}
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e.Subject = "Awesome Subject"
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return e
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}
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func basicTests(t *testing.T, e *Email) *mail.Message {
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raw, err := e.Bytes()
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if err != nil {
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t.Fatal("Failed to render message: ", e)
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}
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msg, err := mail.ReadMessage(bytes.NewBuffer(raw))
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if err != nil {
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t.Fatal("Could not parse rendered message: ", err)
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}
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expectedHeaders := map[string]string{
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"To": "<test@example.com>",
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"From": "\"Jordan Wright\" <test@example.com>",
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"Cc": "<test_cc@example.com>",
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"Subject": "Awesome Subject",
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}
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for header, expected := range expectedHeaders {
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if val := msg.Header.Get(header); val != expected {
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t.Errorf("Wrong value for message header %s: %v != %v", header, expected, val)
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}
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}
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return msg
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}
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func TestEmailText(t *testing.T) {
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e := prepareEmail()
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e.Text = []byte("Text Body is, of course, supported!\n")
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msg := basicTests(t, e)
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// Were the right headers set?
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ct := msg.Header.Get("Content-type")
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mt, _, err := mime.ParseMediaType(ct)
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if err != nil {
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t.Fatal("Content-type header is invalid: ", ct)
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} else if mt != "text/plain" {
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t.Fatalf("Content-type expected \"text/plain\", not %v", mt)
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}
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}
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func TestEmailWithHTMLAttachments(t *testing.T) {
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e := prepareEmail()
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// Set plain text to exercise "mime/alternative"
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e.Text = []byte("Text Body is, of course, supported!\n")
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e.HTML = []byte("<html><body>This is a text.</body></html>")
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// Set HTML attachment to exercise "mime/related".
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attachment, err := e.Attach(bytes.NewBufferString("Rad attachment"), "rad.txt", "image/png; charset=utf-8")
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if err != nil {
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t.Fatal("Could not add an attachment to the message: ", err)
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}
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attachment.HTMLRelated = true
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b, err := e.Bytes()
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if err != nil {
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t.Fatal("Could not serialize e-mail:", err)
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}
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// Print the bytes for ocular validation and make sure no errors.
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//fmt.Println(string(b))
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// TODO: Verify the attachments.
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s := &trimReader{rd: bytes.NewBuffer(b)}
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tp := textproto.NewReader(bufio.NewReader(s))
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// Parse the main headers
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hdrs, err := tp.ReadMIMEHeader()
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if err != nil {
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t.Fatal("Could not parse the headers:", err)
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}
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// Recursively parse the MIME parts
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ps, err := parseMIMEParts(hdrs, tp.R)
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if err != nil {
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t.Fatal("Could not parse the MIME parts recursively:", err)
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}
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plainTextFound := false
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htmlFound := false
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imageFound := false
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if expected, actual := 3, len(ps); actual != expected {
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t.Error("Unexpected number of parts. Expected:", expected, "Was:", actual)
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}
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for _, part := range ps {
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// part has "header" and "body []byte"
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cd := part.header.Get("Content-Disposition")
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ct := part.header.Get("Content-Type")
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if strings.Contains(ct, "image/png") && strings.HasPrefix(cd, "inline") {
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imageFound = true
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}
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if strings.Contains(ct, "text/html") {
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htmlFound = true
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}
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if strings.Contains(ct, "text/plain") {
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plainTextFound = true
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}
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}
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if !plainTextFound {
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t.Error("Did not find plain text part.")
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}
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if !htmlFound {
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t.Error("Did not find HTML part.")
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}
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if !imageFound {
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t.Error("Did not find image part.")
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}
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}
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func TestEmailWithHTMLAttachmentsHTMLOnly(t *testing.T) {
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e := prepareEmail()
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e.HTML = []byte("<html><body>This is a text.</body></html>")
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// Set HTML attachment to exercise "mime/related".
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attachment, err := e.Attach(bytes.NewBufferString("Rad attachment"), "rad.txt", "image/png; charset=utf-8")
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if err != nil {
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t.Fatal("Could not add an attachment to the message: ", err)
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}
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attachment.HTMLRelated = true
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b, err := e.Bytes()
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if err != nil {
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t.Fatal("Could not serialize e-mail:", err)
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}
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// Print the bytes for ocular validation and make sure no errors.
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//fmt.Println(string(b))
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// TODO: Verify the attachments.
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s := &trimReader{rd: bytes.NewBuffer(b)}
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tp := textproto.NewReader(bufio.NewReader(s))
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// Parse the main headers
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hdrs, err := tp.ReadMIMEHeader()
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if err != nil {
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t.Fatal("Could not parse the headers:", err)
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}
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if !strings.HasPrefix(hdrs.Get("Content-Type"), "multipart/related") {
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t.Error("Envelope Content-Type is not multipart/related: ", hdrs["Content-Type"])
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}
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// Recursively parse the MIME parts
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ps, err := parseMIMEParts(hdrs, tp.R)
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if err != nil {
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t.Fatal("Could not parse the MIME parts recursively:", err)
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}
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htmlFound := false
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imageFound := false
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if expected, actual := 2, len(ps); actual != expected {
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t.Error("Unexpected number of parts. Expected:", expected, "Was:", actual)
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}
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for _, part := range ps {
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// part has "header" and "body []byte"
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ct := part.header.Get("Content-Type")
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if strings.Contains(ct, "image/png") {
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imageFound = true
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}
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if strings.Contains(ct, "text/html") {
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htmlFound = true
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}
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}
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if !htmlFound {
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t.Error("Did not find HTML part.")
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}
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if !imageFound {
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t.Error("Did not find image part.")
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}
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}
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func TestEmailHTML(t *testing.T) {
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e := prepareEmail()
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e.HTML = []byte("<h1>Fancy Html is supported, too!</h1>\n")
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msg := basicTests(t, e)
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// Were the right headers set?
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ct := msg.Header.Get("Content-type")
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mt, _, err := mime.ParseMediaType(ct)
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if err != nil {
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t.Fatalf("Content-type header is invalid: %#v", ct)
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} else if mt != "text/html" {
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t.Fatalf("Content-type expected \"text/html\", not %v", mt)
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}
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}
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func TestEmailTextAttachment(t *testing.T) {
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e := prepareEmail()
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e.Text = []byte("Text Body is, of course, supported!\n")
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_, err := e.Attach(bytes.NewBufferString("Rad attachment"), "rad.txt", "text/plain; charset=utf-8")
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if err != nil {
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t.Fatal("Could not add an attachment to the message: ", err)
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}
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msg := basicTests(t, e)
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// Were the right headers set?
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ct := msg.Header.Get("Content-type")
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mt, params, err := mime.ParseMediaType(ct)
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if err != nil {
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t.Fatal("Content-type header is invalid: ", ct)
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} else if mt != "multipart/mixed" {
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t.Fatalf("Content-type expected \"multipart/mixed\", not %v", mt)
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}
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b := params["boundary"]
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if b == "" {
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t.Fatalf("Invalid or missing boundary parameter: %#v", b)
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}
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if len(params) != 1 {
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t.Fatal("Unexpected content-type parameters")
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}
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// Is the generated message parsable?
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mixed := multipart.NewReader(msg.Body, params["boundary"])
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text, err := mixed.NextPart()
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if err != nil {
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t.Fatalf("Could not find text component of email: %s", err)
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}
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// Does the text portion match what we expect?
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mt, _, err = mime.ParseMediaType(text.Header.Get("Content-type"))
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if err != nil {
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t.Fatal("Could not parse message's Content-Type")
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} else if mt != "text/plain" {
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t.Fatal("Message missing text/plain")
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}
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plainText, err := ioutil.ReadAll(text)
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if err != nil {
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t.Fatal("Could not read plain text component of message: ", err)
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}
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if !bytes.Equal(plainText, []byte("Text Body is, of course, supported!\r\n")) {
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t.Fatalf("Plain text is broken: %#q", plainText)
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}
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// Check attachments.
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_, err = mixed.NextPart()
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if err != nil {
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t.Fatalf("Could not find attachment component of email: %s", err)
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}
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if _, err = mixed.NextPart(); err != io.EOF {
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t.Error("Expected only text and one attachment!")
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}
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}
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func TestEmailTextHtmlAttachment(t *testing.T) {
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e := prepareEmail()
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e.Text = []byte("Text Body is, of course, supported!\n")
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||
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e.HTML = []byte("<h1>Fancy Html is supported, too!</h1>\n")
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_, err := e.Attach(bytes.NewBufferString("Rad attachment"), "rad.txt", "text/plain; charset=utf-8")
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||
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if err != nil {
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||
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t.Fatal("Could not add an attachment to the message: ", err)
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||
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}
|
||
|
|
|
||
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msg := basicTests(t, e)
|
||
|
|
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||
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// Were the right headers set?
|
||
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ct := msg.Header.Get("Content-type")
|
||
|
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mt, params, err := mime.ParseMediaType(ct)
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||
|
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if err != nil {
|
||
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t.Fatal("Content-type header is invalid: ", ct)
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} else if mt != "multipart/mixed" {
|
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t.Fatalf("Content-type expected \"multipart/mixed\", not %v", mt)
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||
|
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}
|
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|
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b := params["boundary"]
|
||
|
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if b == "" {
|
||
|
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t.Fatal("Unexpected empty boundary parameter")
|
||
|
|
}
|
||
|
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if len(params) != 1 {
|
||
|
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t.Fatal("Unexpected content-type parameters")
|
||
|
|
}
|
||
|
|
|
||
|
|
// Is the generated message parsable?
|
||
|
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mixed := multipart.NewReader(msg.Body, params["boundary"])
|
||
|
|
|
||
|
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text, err := mixed.NextPart()
|
||
|
|
if err != nil {
|
||
|
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t.Fatalf("Could not find text component of email: %s", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Does the text portion match what we expect?
|
||
|
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mt, params, err = mime.ParseMediaType(text.Header.Get("Content-type"))
|
||
|
|
if err != nil {
|
||
|
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t.Fatal("Could not parse message's Content-Type")
|
||
|
|
} else if mt != "multipart/alternative" {
|
||
|
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t.Fatal("Message missing multipart/alternative")
|
||
|
|
}
|
||
|
|
mpReader := multipart.NewReader(text, params["boundary"])
|
||
|
|
part, err := mpReader.NextPart()
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal("Could not read plain text component of message: ", err)
|
||
|
|
}
|
||
|
|
plainText, err := ioutil.ReadAll(part)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal("Could not read plain text component of message: ", err)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(plainText, []byte("Text Body is, of course, supported!\r\n")) {
|
||
|
|
t.Fatalf("Plain text is broken: %#q", plainText)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check attachments.
|
||
|
|
_, err = mixed.NextPart()
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Could not find attachment component of email: %s", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
if _, err = mixed.NextPart(); err != io.EOF {
|
||
|
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t.Error("Expected only text and one attachment!")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestEmailAttachment(t *testing.T) {
|
||
|
|
e := prepareEmail()
|
||
|
|
_, err := e.Attach(bytes.NewBufferString("Rad attachment"), "rad.txt", "text/plain; charset=utf-8")
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal("Could not add an attachment to the message: ", err)
|
||
|
|
}
|
||
|
|
msg := basicTests(t, e)
|
||
|
|
|
||
|
|
// Were the right headers set?
|
||
|
|
ct := msg.Header.Get("Content-type")
|
||
|
|
mt, params, err := mime.ParseMediaType(ct)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal("Content-type header is invalid: ", ct)
|
||
|
|
} else if mt != "multipart/mixed" {
|
||
|
|
t.Fatalf("Content-type expected \"multipart/mixed\", not %v", mt)
|
||
|
|
}
|
||
|
|
b := params["boundary"]
|
||
|
|
if b == "" {
|
||
|
|
t.Fatal("Unexpected empty boundary parameter")
|
||
|
|
}
|
||
|
|
if len(params) != 1 {
|
||
|
|
t.Fatal("Unexpected content-type parameters")
|
||
|
|
}
|
||
|
|
|
||
|
|
// Is the generated message parsable?
|
||
|
|
mixed := multipart.NewReader(msg.Body, params["boundary"])
|
||
|
|
|
||
|
|
// Check attachments.
|
||
|
|
a, err := mixed.NextPart()
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Could not find attachment component of email: %s", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
if !strings.HasPrefix(a.Header.Get("Content-Disposition"), "attachment") {
|
||
|
|
t.Fatalf("Content disposition is not attachment: %s", a.Header.Get("Content-Disposition"))
|
||
|
|
}
|
||
|
|
|
||
|
|
if _, err = mixed.NextPart(); err != io.EOF {
|
||
|
|
t.Error("Expected only one attachment!")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestHeaderEncoding(t *testing.T) {
|
||
|
|
cases := []struct {
|
||
|
|
field string
|
||
|
|
have string
|
||
|
|
want string
|
||
|
|
}{
|
||
|
|
{
|
||
|
|
field: "From",
|
||
|
|
have: "Needs Encóding <encoding@example.com>, Only ASCII <foo@example.com>",
|
||
|
|
want: "=?utf-8?q?Needs_Enc=C3=B3ding?= <encoding@example.com>, \"Only ASCII\" <foo@example.com>\r\n",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
field: "To",
|
||
|
|
have: "Keith Moore <moore@cs.utk.edu>, Keld Jørn Simonsen <keld@dkuug.dk>",
|
||
|
|
want: "\"Keith Moore\" <moore@cs.utk.edu>, =?utf-8?q?Keld_J=C3=B8rn_Simonsen?= <keld@dkuug.dk>\r\n",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
field: "Cc",
|
||
|
|
have: "Needs Encóding <encoding@example.com>, \"Test :)\" <test@localhost>",
|
||
|
|
want: "=?utf-8?q?Needs_Enc=C3=B3ding?= <encoding@example.com>, \"Test :)\" <test@localhost>\r\n",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
field: "Subject",
|
||
|
|
have: "Subject with a 🐟",
|
||
|
|
want: "=?UTF-8?q?Subject_with_a_=F0=9F=90=9F?=\r\n",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
field: "Subject",
|
||
|
|
have: "Subject with only ASCII",
|
||
|
|
want: "Subject with only ASCII\r\n",
|
||
|
|
},
|
||
|
|
}
|
||
|
|
buff := &bytes.Buffer{}
|
||
|
|
for _, c := range cases {
|
||
|
|
header := make(textproto.MIMEHeader)
|
||
|
|
header.Add(c.field, c.have)
|
||
|
|
buff.Reset()
|
||
|
|
headerToBytes(buff, header)
|
||
|
|
want := fmt.Sprintf("%s: %s", c.field, c.want)
|
||
|
|
got := buff.String()
|
||
|
|
if got != want {
|
||
|
|
t.Errorf("invalid utf-8 header encoding. \nwant:%#v\ngot: %#v", want, got)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestEmailFromReader(t *testing.T) {
|
||
|
|
ex := &Email{
|
||
|
|
Subject: "Test Subject",
|
||
|
|
To: []string{"Jordan Wright <jmwright798@gmail.com>", "also@example.com"},
|
||
|
|
From: "Jordan Wright <jmwright798@gmail.com>",
|
||
|
|
ReplyTo: []string{"Jordan Wright <jmwright798@gmail.com>"},
|
||
|
|
Cc: []string{"one@example.com", "Two <two@example.com>"},
|
||
|
|
Bcc: []string{"three@example.com", "Four <four@example.com>"},
|
||
|
|
Text: []byte("This is a test email with HTML Formatting. It also has very long lines so\nthat the content must be wrapped if using quoted-printable decoding.\n"),
|
||
|
|
HTML: []byte("<div dir=\"ltr\">This is a test email with <b>HTML Formatting.</b>\u00a0It also has very long lines so that the content must be wrapped if using quoted-printable decoding.</div>\n"),
|
||
|
|
}
|
||
|
|
raw := []byte(`
|
||
|
|
MIME-Version: 1.0
|
||
|
|
Subject: Test Subject
|
||
|
|
From: Jordan Wright <jmwright798@gmail.com>
|
||
|
|
Reply-To: Jordan Wright <jmwright798@gmail.com>
|
||
|
|
To: Jordan Wright <jmwright798@gmail.com>, also@example.com
|
||
|
|
Cc: one@example.com, Two <two@example.com>
|
||
|
|
Bcc: three@example.com, Four <four@example.com>
|
||
|
|
Content-Type: multipart/alternative; boundary=001a114fb3fc42fd6b051f834280
|
||
|
|
|
||
|
|
--001a114fb3fc42fd6b051f834280
|
||
|
|
Content-Type: text/plain; charset=UTF-8
|
||
|
|
|
||
|
|
This is a test email with HTML Formatting. It also has very long lines so
|
||
|
|
that the content must be wrapped if using quoted-printable decoding.
|
||
|
|
|
||
|
|
--001a114fb3fc42fd6b051f834280
|
||
|
|
Content-Type: text/html; charset=UTF-8
|
||
|
|
Content-Transfer-Encoding: quoted-printable
|
||
|
|
|
||
|
|
<div dir=3D"ltr">This is a test email with <b>HTML Formatting.</b>=C2=A0It =
|
||
|
|
also has very long lines so that the content must be wrapped if using quote=
|
||
|
|
d-printable decoding.</div>
|
||
|
|
|
||
|
|
--001a114fb3fc42fd6b051f834280--`)
|
||
|
|
e, err := NewEmailFromReader(bytes.NewReader(raw))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Error creating email %s", err.Error())
|
||
|
|
}
|
||
|
|
if e.Subject != ex.Subject {
|
||
|
|
t.Fatalf("Incorrect subject. %#q != %#q", e.Subject, ex.Subject)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(e.Text, ex.Text) {
|
||
|
|
t.Fatalf("Incorrect text: %#q != %#q", e.Text, ex.Text)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(e.HTML, ex.HTML) {
|
||
|
|
t.Fatalf("Incorrect HTML: %#q != %#q", e.HTML, ex.HTML)
|
||
|
|
}
|
||
|
|
if e.From != ex.From {
|
||
|
|
t.Fatalf("Incorrect \"From\": %#q != %#q", e.From, ex.From)
|
||
|
|
}
|
||
|
|
if len(e.To) != len(ex.To) {
|
||
|
|
t.Fatalf("Incorrect number of \"To\" addresses: %v != %v", len(e.To), len(ex.To))
|
||
|
|
}
|
||
|
|
if e.To[0] != ex.To[0] {
|
||
|
|
t.Fatalf("Incorrect \"To[0]\": %#q != %#q", e.To[0], ex.To[0])
|
||
|
|
}
|
||
|
|
if e.To[1] != ex.To[1] {
|
||
|
|
t.Fatalf("Incorrect \"To[1]\": %#q != %#q", e.To[1], ex.To[1])
|
||
|
|
}
|
||
|
|
if len(e.Cc) != len(ex.Cc) {
|
||
|
|
t.Fatalf("Incorrect number of \"Cc\" addresses: %v != %v", len(e.Cc), len(ex.Cc))
|
||
|
|
}
|
||
|
|
if e.Cc[0] != ex.Cc[0] {
|
||
|
|
t.Fatalf("Incorrect \"Cc[0]\": %#q != %#q", e.Cc[0], ex.Cc[0])
|
||
|
|
}
|
||
|
|
if e.Cc[1] != ex.Cc[1] {
|
||
|
|
t.Fatalf("Incorrect \"Cc[1]\": %#q != %#q", e.Cc[1], ex.Cc[1])
|
||
|
|
}
|
||
|
|
if len(e.Bcc) != len(ex.Bcc) {
|
||
|
|
t.Fatalf("Incorrect number of \"Bcc\" addresses: %v != %v", len(e.Bcc), len(ex.Bcc))
|
||
|
|
}
|
||
|
|
if e.Bcc[0] != ex.Bcc[0] {
|
||
|
|
t.Fatalf("Incorrect \"Bcc[0]\": %#q != %#q", e.Cc[0], ex.Cc[0])
|
||
|
|
}
|
||
|
|
if e.Bcc[1] != ex.Bcc[1] {
|
||
|
|
t.Fatalf("Incorrect \"Bcc[1]\": %#q != %#q", e.Bcc[1], ex.Bcc[1])
|
||
|
|
}
|
||
|
|
if len(e.ReplyTo) != len(ex.ReplyTo) {
|
||
|
|
t.Fatalf("Incorrect number of \"Reply-To\" addresses: %v != %v", len(e.ReplyTo), len(ex.ReplyTo))
|
||
|
|
}
|
||
|
|
if e.ReplyTo[0] != ex.ReplyTo[0] {
|
||
|
|
t.Fatalf("Incorrect \"ReplyTo\": %#q != %#q", e.ReplyTo[0], ex.ReplyTo[0])
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestNonAsciiEmailFromReader(t *testing.T) {
|
||
|
|
ex := &Email{
|
||
|
|
Subject: "Test Subject",
|
||
|
|
To: []string{"Anaïs <anais@example.org>"},
|
||
|
|
Cc: []string{"Patrik Fältström <paf@example.com>"},
|
||
|
|
From: "Mrs Valérie Dupont <valerie.dupont@example.com>",
|
||
|
|
Text: []byte("This is a test message!"),
|
||
|
|
}
|
||
|
|
raw := []byte(`
|
||
|
|
MIME-Version: 1.0
|
||
|
|
Subject: =?UTF-8?Q?Test Subject?=
|
||
|
|
From: Mrs =?ISO-8859-1?Q?Val=C3=A9rie=20Dupont?= <valerie.dupont@example.com>
|
||
|
|
To: =?utf-8?q?Ana=C3=AFs?= <anais@example.org>
|
||
|
|
Cc: =?ISO-8859-1?Q?Patrik_F=E4ltstr=F6m?= <paf@example.com>
|
||
|
|
Content-type: text/plain; charset=ISO-8859-1
|
||
|
|
|
||
|
|
This is a test message!`)
|
||
|
|
e, err := NewEmailFromReader(bytes.NewReader(raw))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Error creating email %s", err.Error())
|
||
|
|
}
|
||
|
|
if e.Subject != ex.Subject {
|
||
|
|
t.Fatalf("Incorrect subject. %#q != %#q", e.Subject, ex.Subject)
|
||
|
|
}
|
||
|
|
if e.From != ex.From {
|
||
|
|
t.Fatalf("Incorrect \"From\": %#q != %#q", e.From, ex.From)
|
||
|
|
}
|
||
|
|
if e.To[0] != ex.To[0] {
|
||
|
|
t.Fatalf("Incorrect \"To\": %#q != %#q", e.To, ex.To)
|
||
|
|
}
|
||
|
|
if e.Cc[0] != ex.Cc[0] {
|
||
|
|
t.Fatalf("Incorrect \"Cc\": %#q != %#q", e.Cc, ex.Cc)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestNonMultipartEmailFromReader(t *testing.T) {
|
||
|
|
ex := &Email{
|
||
|
|
Text: []byte("This is a test message!"),
|
||
|
|
Subject: "Example Subject (no MIME Type)",
|
||
|
|
Headers: textproto.MIMEHeader{},
|
||
|
|
}
|
||
|
|
ex.Headers.Add("Content-Type", "text/plain; charset=us-ascii")
|
||
|
|
ex.Headers.Add("Message-ID", "<foobar@example.com>")
|
||
|
|
raw := []byte(`From: "Foo Bar" <foobar@example.com>
|
||
|
|
Content-Type: text/plain
|
||
|
|
To: foobar@example.com
|
||
|
|
Subject: Example Subject (no MIME Type)
|
||
|
|
Message-ID: <foobar@example.com>
|
||
|
|
|
||
|
|
This is a test message!`)
|
||
|
|
e, err := NewEmailFromReader(bytes.NewReader(raw))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Error creating email %s", err.Error())
|
||
|
|
}
|
||
|
|
if ex.Subject != e.Subject {
|
||
|
|
t.Errorf("Incorrect subject. %#q != %#q\n", ex.Subject, e.Subject)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(ex.Text, e.Text) {
|
||
|
|
t.Errorf("Incorrect body. %#q != %#q\n", ex.Text, e.Text)
|
||
|
|
}
|
||
|
|
if ex.Headers.Get("Message-ID") != e.Headers.Get("Message-ID") {
|
||
|
|
t.Errorf("Incorrect message ID. %#q != %#q\n", ex.Headers.Get("Message-ID"), e.Headers.Get("Message-ID"))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestBase64EmailFromReader(t *testing.T) {
|
||
|
|
ex := &Email{
|
||
|
|
Subject: "Test Subject",
|
||
|
|
To: []string{"Jordan Wright <jmwright798@gmail.com>"},
|
||
|
|
From: "Jordan Wright <jmwright798@gmail.com>",
|
||
|
|
Text: []byte("This is a test email with HTML Formatting. It also has very long lines so that the content must be wrapped if using quoted-printable decoding."),
|
||
|
|
HTML: []byte("<div dir=\"ltr\">This is a test email with <b>HTML Formatting.</b>\u00a0It also has very long lines so that the content must be wrapped if using quoted-printable decoding.</div>\n"),
|
||
|
|
}
|
||
|
|
raw := []byte(`
|
||
|
|
MIME-Version: 1.0
|
||
|
|
Subject: Test Subject
|
||
|
|
From: Jordan Wright <jmwright798@gmail.com>
|
||
|
|
To: Jordan Wright <jmwright798@gmail.com>
|
||
|
|
Content-Type: multipart/alternative; boundary=001a114fb3fc42fd6b051f834280
|
||
|
|
|
||
|
|
--001a114fb3fc42fd6b051f834280
|
||
|
|
Content-Type: text/plain; charset=UTF-8
|
||
|
|
Content-Transfer-Encoding: base64
|
||
|
|
|
||
|
|
VGhpcyBpcyBhIHRlc3QgZW1haWwgd2l0aCBIVE1MIEZvcm1hdHRpbmcuIEl0IGFsc28gaGFzIHZl
|
||
|
|
cnkgbG9uZyBsaW5lcyBzbyB0aGF0IHRoZSBjb250ZW50IG11c3QgYmUgd3JhcHBlZCBpZiB1c2lu
|
||
|
|
ZyBxdW90ZWQtcHJpbnRhYmxlIGRlY29kaW5nLg==
|
||
|
|
|
||
|
|
--001a114fb3fc42fd6b051f834280
|
||
|
|
Content-Type: text/html; charset=UTF-8
|
||
|
|
Content-Transfer-Encoding: quoted-printable
|
||
|
|
|
||
|
|
<div dir=3D"ltr">This is a test email with <b>HTML Formatting.</b>=C2=A0It =
|
||
|
|
also has very long lines so that the content must be wrapped if using quote=
|
||
|
|
d-printable decoding.</div>
|
||
|
|
|
||
|
|
--001a114fb3fc42fd6b051f834280--`)
|
||
|
|
e, err := NewEmailFromReader(bytes.NewReader(raw))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Error creating email %s", err.Error())
|
||
|
|
}
|
||
|
|
if e.Subject != ex.Subject {
|
||
|
|
t.Fatalf("Incorrect subject. %#q != %#q", e.Subject, ex.Subject)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(e.Text, ex.Text) {
|
||
|
|
t.Fatalf("Incorrect text: %#q != %#q", e.Text, ex.Text)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(e.HTML, ex.HTML) {
|
||
|
|
t.Fatalf("Incorrect HTML: %#q != %#q", e.HTML, ex.HTML)
|
||
|
|
}
|
||
|
|
if e.From != ex.From {
|
||
|
|
t.Fatalf("Incorrect \"From\": %#q != %#q", e.From, ex.From)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestAttachmentEmailFromReader(t *testing.T) {
|
||
|
|
ex := &Email{
|
||
|
|
Subject: "Test Subject",
|
||
|
|
To: []string{"Jordan Wright <jmwright798@gmail.com>"},
|
||
|
|
From: "Jordan Wright <jmwright798@gmail.com>",
|
||
|
|
Text: []byte("Simple text body"),
|
||
|
|
HTML: []byte("<div dir=\"ltr\">Simple HTML body</div>\n"),
|
||
|
|
}
|
||
|
|
a, err := ex.Attach(bytes.NewReader([]byte("Let's just pretend this is raw JPEG data.")), "cat.jpeg", "image/jpeg")
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Error attaching image %s", err.Error())
|
||
|
|
}
|
||
|
|
b, err := ex.Attach(bytes.NewReader([]byte("Let's just pretend this is raw JPEG data.")), "cat-inline.jpeg", "image/jpeg")
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Error attaching inline image %s", err.Error())
|
||
|
|
}
|
||
|
|
raw := []byte(`
|
||
|
|
From: Jordan Wright <jmwright798@gmail.com>
|
||
|
|
Date: Thu, 17 Oct 2019 08:55:37 +0100
|
||
|
|
Mime-Version: 1.0
|
||
|
|
Content-Type: multipart/mixed;
|
||
|
|
boundary=35d10c2224bd787fe700c2c6f4769ddc936eb8a0b58e9c8717e406c5abb7
|
||
|
|
To: Jordan Wright <jmwright798@gmail.com>
|
||
|
|
Subject: Test Subject
|
||
|
|
|
||
|
|
--35d10c2224bd787fe700c2c6f4769ddc936eb8a0b58e9c8717e406c5abb7
|
||
|
|
Content-Type: multipart/alternative;
|
||
|
|
boundary=b10ca5b1072908cceb667e8968d3af04503b7ab07d61c9f579c15b416d7c
|
||
|
|
|
||
|
|
--b10ca5b1072908cceb667e8968d3af04503b7ab07d61c9f579c15b416d7c
|
||
|
|
Content-Transfer-Encoding: quoted-printable
|
||
|
|
Content-Type: text/plain; charset=UTF-8
|
||
|
|
|
||
|
|
Simple text body
|
||
|
|
--b10ca5b1072908cceb667e8968d3af04503b7ab07d61c9f579c15b416d7c
|
||
|
|
Content-Transfer-Encoding: quoted-printable
|
||
|
|
Content-Type: text/html; charset=UTF-8
|
||
|
|
|
||
|
|
<div dir=3D"ltr">Simple HTML body</div>
|
||
|
|
|
||
|
|
--b10ca5b1072908cceb667e8968d3af04503b7ab07d61c9f579c15b416d7c--
|
||
|
|
|
||
|
|
--35d10c2224bd787fe700c2c6f4769ddc936eb8a0b58e9c8717e406c5abb7
|
||
|
|
Content-Disposition: attachment;
|
||
|
|
filename="cat.jpeg"
|
||
|
|
Content-Id: <cat.jpeg>
|
||
|
|
Content-Transfer-Encoding: base64
|
||
|
|
Content-Type: image/jpeg
|
||
|
|
|
||
|
|
TGV0J3MganVzdCBwcmV0ZW5kIHRoaXMgaXMgcmF3IEpQRUcgZGF0YS4=
|
||
|
|
|
||
|
|
--35d10c2224bd787fe700c2c6f4769ddc936eb8a0b58e9c8717e406c5abb7
|
||
|
|
Content-Disposition: inline;
|
||
|
|
filename="cat-inline.jpeg"
|
||
|
|
Content-Id: <cat-inline.jpeg>
|
||
|
|
Content-Transfer-Encoding: base64
|
||
|
|
Content-Type: image/jpeg
|
||
|
|
|
||
|
|
TGV0J3MganVzdCBwcmV0ZW5kIHRoaXMgaXMgcmF3IEpQRUcgZGF0YS4=
|
||
|
|
|
||
|
|
--35d10c2224bd787fe700c2c6f4769ddc936eb8a0b58e9c8717e406c5abb7--`)
|
||
|
|
e, err := NewEmailFromReader(bytes.NewReader(raw))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Error creating email %s", err.Error())
|
||
|
|
}
|
||
|
|
if e.Subject != ex.Subject {
|
||
|
|
t.Fatalf("Incorrect subject. %#q != %#q", e.Subject, ex.Subject)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(e.Text, ex.Text) {
|
||
|
|
t.Fatalf("Incorrect text: %#q != %#q", e.Text, ex.Text)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(e.HTML, ex.HTML) {
|
||
|
|
t.Fatalf("Incorrect HTML: %#q != %#q", e.HTML, ex.HTML)
|
||
|
|
}
|
||
|
|
if e.From != ex.From {
|
||
|
|
t.Fatalf("Incorrect \"From\": %#q != %#q", e.From, ex.From)
|
||
|
|
}
|
||
|
|
if len(e.Attachments) != 2 {
|
||
|
|
t.Fatalf("Incorrect number of attachments %d != %d", len(e.Attachments), 1)
|
||
|
|
}
|
||
|
|
if e.Attachments[0].Filename != a.Filename {
|
||
|
|
t.Fatalf("Incorrect attachment filename %s != %s", e.Attachments[0].Filename, a.Filename)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(e.Attachments[0].Content, a.Content) {
|
||
|
|
t.Fatalf("Incorrect attachment content %#q != %#q", e.Attachments[0].Content, a.Content)
|
||
|
|
}
|
||
|
|
if e.Attachments[1].Filename != b.Filename {
|
||
|
|
t.Fatalf("Incorrect attachment filename %s != %s", e.Attachments[1].Filename, b.Filename)
|
||
|
|
}
|
||
|
|
if !bytes.Equal(e.Attachments[1].Content, b.Content) {
|
||
|
|
t.Fatalf("Incorrect attachment content %#q != %#q", e.Attachments[1].Content, b.Content)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func ExampleGmail() {
|
||
|
|
e := NewEmail()
|
||
|
|
e.From = "Jordan Wright <test@gmail.com>"
|
||
|
|
e.To = []string{"test@example.com"}
|
||
|
|
e.Bcc = []string{"test_bcc@example.com"}
|
||
|
|
e.Cc = []string{"test_cc@example.com"}
|
||
|
|
e.Subject = "Awesome Subject"
|
||
|
|
e.Text = []byte("Text Body is, of course, supported!\n")
|
||
|
|
e.HTML = []byte("<h1>Fancy Html is supported, too!</h1>\n")
|
||
|
|
e.Send("smtp.gmail.com:587", smtp.PlainAuth("", e.From, "password123", "smtp.gmail.com"))
|
||
|
|
}
|
||
|
|
|
||
|
|
func ExampleAttach() {
|
||
|
|
e := NewEmail()
|
||
|
|
e.AttachFile("test.txt")
|
||
|
|
}
|
||
|
|
|
||
|
|
func Test_base64Wrap(t *testing.T) {
|
||
|
|
file := "I'm a file long enough to force the function to wrap a\n" +
|
||
|
|
"couple of lines, but I stop short of the end of one line and\n" +
|
||
|
|
"have some padding dangling at the end."
|
||
|
|
encoded := "SSdtIGEgZmlsZSBsb25nIGVub3VnaCB0byBmb3JjZSB0aGUgZnVuY3Rpb24gdG8gd3JhcCBhCmNv\r\n" +
|
||
|
|
"dXBsZSBvZiBsaW5lcywgYnV0IEkgc3RvcCBzaG9ydCBvZiB0aGUgZW5kIG9mIG9uZSBsaW5lIGFu\r\n" +
|
||
|
|
"ZApoYXZlIHNvbWUgcGFkZGluZyBkYW5nbGluZyBhdCB0aGUgZW5kLg==\r\n"
|
||
|
|
|
||
|
|
var buf bytes.Buffer
|
||
|
|
base64Wrap(&buf, []byte(file))
|
||
|
|
if !bytes.Equal(buf.Bytes(), []byte(encoded)) {
|
||
|
|
t.Fatalf("Encoded file does not match expected: %#q != %#q", string(buf.Bytes()), encoded)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// *Since the mime library in use by ```email``` is now in the stdlib, this test is deprecated
|
||
|
|
func Test_quotedPrintEncode(t *testing.T) {
|
||
|
|
var buf bytes.Buffer
|
||
|
|
text := []byte("Dear reader!\n\n" +
|
||
|
|
"This is a test email to try and capture some of the corner cases that exist within\n" +
|
||
|
|
"the quoted-printable encoding.\n" +
|
||
|
|
"There are some wacky parts like =, and this input assumes UNIX line breaks so\r\n" +
|
||
|
|
"it can come out a little weird. Also, we need to support unicode so here's a fish: 🐟\n")
|
||
|
|
expected := []byte("Dear reader!\r\n\r\n" +
|
||
|
|
"This is a test email to try and capture some of the corner cases that exist=\r\n" +
|
||
|
|
" within\r\n" +
|
||
|
|
"the quoted-printable encoding.\r\n" +
|
||
|
|
"There are some wacky parts like =3D, and this input assumes UNIX line break=\r\n" +
|
||
|
|
"s so\r\n" +
|
||
|
|
"it can come out a little weird. Also, we need to support unicode so here's=\r\n" +
|
||
|
|
" a fish: =F0=9F=90=9F\r\n")
|
||
|
|
qp := quotedprintable.NewWriter(&buf)
|
||
|
|
if _, err := qp.Write(text); err != nil {
|
||
|
|
t.Fatal("quotePrintEncode: ", err)
|
||
|
|
}
|
||
|
|
if err := qp.Close(); err != nil {
|
||
|
|
t.Fatal("Error closing writer", err)
|
||
|
|
}
|
||
|
|
if b := buf.Bytes(); !bytes.Equal(b, expected) {
|
||
|
|
t.Errorf("quotedPrintEncode generated incorrect results: %#q != %#q", b, expected)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestMultipartNoContentType(t *testing.T) {
|
||
|
|
raw := []byte(`From: Mikhail Gusarov <dottedmag@dottedmag.net>
|
||
|
|
To: notmuch@notmuchmail.org
|
||
|
|
References: <20091117190054.GU3165@dottiness.seas.harvard.edu>
|
||
|
|
Date: Wed, 18 Nov 2009 01:02:38 +0600
|
||
|
|
Message-ID: <87iqd9rn3l.fsf@vertex.dottedmag>
|
||
|
|
MIME-Version: 1.0
|
||
|
|
Subject: Re: [notmuch] Working with Maildir storage?
|
||
|
|
Content-Type: multipart/mixed; boundary="===============1958295626=="
|
||
|
|
|
||
|
|
--===============1958295626==
|
||
|
|
Content-Type: multipart/signed; boundary="=-=-=";
|
||
|
|
micalg=pgp-sha1; protocol="application/pgp-signature"
|
||
|
|
|
||
|
|
--=-=-=
|
||
|
|
Content-Transfer-Encoding: quoted-printable
|
||
|
|
|
||
|
|
Twas brillig at 14:00:54 17.11.2009 UTC-05 when lars@seas.harvard.edu did g=
|
||
|
|
yre and gimble:
|
||
|
|
|
||
|
|
--=-=-=
|
||
|
|
Content-Type: application/pgp-signature
|
||
|
|
|
||
|
|
-----BEGIN PGP SIGNATURE-----
|
||
|
|
Version: GnuPG v1.4.9 (GNU/Linux)
|
||
|
|
|
||
|
|
iQIcBAEBAgAGBQJLAvNOAAoJEJ0g9lA+M4iIjLYQAKp0PXEgl3JMOEBisH52AsIK
|
||
|
|
=/ksP
|
||
|
|
-----END PGP SIGNATURE-----
|
||
|
|
--=-=-=--
|
||
|
|
|
||
|
|
--===============1958295626==
|
||
|
|
Content-Type: text/plain; charset="us-ascii"
|
||
|
|
MIME-Version: 1.0
|
||
|
|
Content-Transfer-Encoding: 7bit
|
||
|
|
Content-Disposition: inline
|
||
|
|
|
||
|
|
Testing!
|
||
|
|
--===============1958295626==--
|
||
|
|
`)
|
||
|
|
e, err := NewEmailFromReader(bytes.NewReader(raw))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Error when parsing email %s", err.Error())
|
||
|
|
}
|
||
|
|
if !bytes.Equal(e.Text, []byte("Testing!")) {
|
||
|
|
t.Fatalf("Error incorrect text: %#q != %#q\n", e.Text, "Testing!")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestNoMultipartHTMLContentTypeBase64Encoding(t *testing.T) {
|
||
|
|
raw := []byte(`MIME-Version: 1.0
|
||
|
|
From: no-reply@example.com
|
||
|
|
To: tester@example.org
|
||
|
|
Date: 7 Jan 2021 03:07:44 -0800
|
||
|
|
Subject: Hello
|
||
|
|
Content-Type: text/html; charset=utf-8
|
||
|
|
Content-Transfer-Encoding: base64
|
||
|
|
Message-Id: <20210107110744.547DD70532@example.com>
|
||
|
|
|
||
|
|
PGh0bWw+PGhlYWQ+PHRpdGxlPnRlc3Q8L3RpdGxlPjwvaGVhZD48Ym9keT5IZWxsbyB3
|
||
|
|
b3JsZCE8L2JvZHk+PC9odG1sPg==
|
||
|
|
`)
|
||
|
|
e, err := NewEmailFromReader(bytes.NewReader(raw))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Error when parsing email %s", err.Error())
|
||
|
|
}
|
||
|
|
if !bytes.Equal(e.HTML, []byte("<html><head><title>test</title></head><body>Hello world!</body></html>")) {
|
||
|
|
t.Fatalf("Error incorrect text: %#q != %#q\n", e.Text, "<html>...</html>")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// *Since the mime library in use by ```email``` is now in the stdlib, this test is deprecated
|
||
|
|
func Test_quotedPrintDecode(t *testing.T) {
|
||
|
|
text := []byte("Dear reader!\r\n\r\n" +
|
||
|
|
"This is a test email to try and capture some of the corner cases that exist=\r\n" +
|
||
|
|
" within\r\n" +
|
||
|
|
"the quoted-printable encoding.\r\n" +
|
||
|
|
"There are some wacky parts like =3D, and this input assumes UNIX line break=\r\n" +
|
||
|
|
"s so\r\n" +
|
||
|
|
"it can come out a little weird. Also, we need to support unicode so here's=\r\n" +
|
||
|
|
" a fish: =F0=9F=90=9F\r\n")
|
||
|
|
expected := []byte("Dear reader!\r\n\r\n" +
|
||
|
|
"This is a test email to try and capture some of the corner cases that exist within\r\n" +
|
||
|
|
"the quoted-printable encoding.\r\n" +
|
||
|
|
"There are some wacky parts like =, and this input assumes UNIX line breaks so\r\n" +
|
||
|
|
"it can come out a little weird. Also, we need to support unicode so here's a fish: 🐟\r\n")
|
||
|
|
qp := quotedprintable.NewReader(bytes.NewReader(text))
|
||
|
|
got, err := ioutil.ReadAll(qp)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal("quotePrintDecode: ", err)
|
||
|
|
}
|
||
|
|
|
||
|
|
if !bytes.Equal(got, expected) {
|
||
|
|
t.Errorf("quotedPrintDecode generated incorrect results: %#q != %#q", got, expected)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func Benchmark_base64Wrap(b *testing.B) {
|
||
|
|
// Reasonable base case; 128K random bytes
|
||
|
|
file := make([]byte, 128*1024)
|
||
|
|
if _, err := rand.Read(file); err != nil {
|
||
|
|
panic(err)
|
||
|
|
}
|
||
|
|
for i := 0; i <= b.N; i++ {
|
||
|
|
base64Wrap(ioutil.Discard, file)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestParseSender(t *testing.T) {
|
||
|
|
var cases = []struct {
|
||
|
|
e Email
|
||
|
|
want string
|
||
|
|
haserr bool
|
||
|
|
}{
|
||
|
|
{
|
||
|
|
Email{From: "from@test.com"},
|
||
|
|
"from@test.com",
|
||
|
|
false,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
Email{Sender: "sender@test.com", From: "from@test.com"},
|
||
|
|
"sender@test.com",
|
||
|
|
false,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
Email{Sender: "bad_address_sender"},
|
||
|
|
"",
|
||
|
|
true,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
Email{Sender: "good@sender.com", From: "bad_address_from"},
|
||
|
|
"good@sender.com",
|
||
|
|
false,
|
||
|
|
},
|
||
|
|
}
|
||
|
|
|
||
|
|
for i, testcase := range cases {
|
||
|
|
got, err := testcase.e.parseSender()
|
||
|
|
if got != testcase.want || (err != nil) != testcase.haserr {
|
||
|
|
t.Errorf(`%d: got %s != want %s or error "%t" != "%t"`, i+1, got, testcase.want, err != nil, testcase.haserr)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|