71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
package mail
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import (
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"os"
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"path/filepath"
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"testing"
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)
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func loadFixture(t *testing.T, name string) []byte {
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t.Helper()
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b, err := os.ReadFile(filepath.Join("testdata", name))
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if err != nil {
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t.Fatalf("read fixture: %v", err)
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}
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return b
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}
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func TestParseMessage(t *testing.T) {
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raw := loadFixture(t, "with_attachment.eml")
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m, err := ParseMessage(42, raw)
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if err != nil {
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t.Fatalf("ParseMessage: %v", err)
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}
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if m.Header.UID != 42 {
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t.Fatalf("uid: %d", m.Header.UID)
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}
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if m.Header.Subject != "Your Invoice #5" {
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t.Fatalf("subject: %q", m.Header.Subject)
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}
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if m.Header.From != `"Bob" <bob@trusted.com>` && m.Header.From != "Bob <bob@trusted.com>" {
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t.Fatalf("from: %q", m.Header.From)
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}
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if m.Header.MessageID != "abc123@trusted.com" && m.Header.MessageID != "<abc123@trusted.com>" {
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t.Fatalf("message-id: %q", m.Header.MessageID)
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}
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if want := "Hello, here is your invoice."; !contains(m.BodyText, want) {
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t.Fatalf("body=%q want contains %q", m.BodyText, want)
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}
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if !m.Header.HasAttachments {
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t.Fatal("HasAttachments should be true")
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}
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if len(m.Attachments) != 1 || m.Attachments[0].Name != "invoice.txt" {
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t.Fatalf("attachments: %+v", m.Attachments)
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}
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if !contains(string(m.Attachments[0].Content), "LINE-ITEM 1") {
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t.Fatalf("attachment content: %q", m.Attachments[0].Content)
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}
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}
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func TestParseHeaderOnly(t *testing.T) {
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raw := loadFixture(t, "with_attachment.eml")
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h, err := ParseHeaderOnly(7, raw)
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if err != nil {
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t.Fatalf("ParseHeaderOnly: %v", err)
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}
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if h.Subject != "Your Invoice #5" || !h.HasAttachments {
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t.Fatalf("header: %+v", h)
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}
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}
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func contains(s, sub string) bool {
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return len(s) >= len(sub) && (func() bool {
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for i := 0; i+len(sub) <= len(s); i++ {
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if s[i:i+len(sub)] == sub {
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return true
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}
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}
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return false
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}())
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}
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