(t *testing.T)
| 48 | } |
| 49 | |
| 50 | func TestComposeMessageSubjectRFC2047Encoding(t *testing.T) { |
| 51 | raw, err := ComposeMessage( |
| 52 | "from@test.com", []string{"to@test.com"}, nil, |
| 53 | "Résumé 📄 for アリス", "Body", "text/plain", "", nil, "test.dev", "", "", |
| 54 | ) |
| 55 | if err != nil { |
| 56 | t.Fatalf("ComposeMessage failed: %v", err) |
| 57 | } |
| 58 | |
| 59 | // Raw header must be 7-bit ASCII (RFC 5322 §2.2). |
| 60 | headerEnd := strings.Index(string(raw), "\r\n\r\n") |
| 61 | if headerEnd < 0 { |
| 62 | t.Fatal("no header/body separator") |
| 63 | } |
| 64 | for i, b := range []byte(string(raw)[:headerEnd]) { |
| 65 | if b > 127 { |
| 66 | t.Fatalf("non-ASCII byte 0x%x at offset %d in headers", b, i) |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | // Go's mail.ReadMessage + WordDecoder should round-trip the subject. |
| 71 | msg, err := mail.ReadMessage(strings.NewReader(string(raw))) |
| 72 | if err != nil { |
| 73 | t.Fatalf("parse: %v", err) |
| 74 | } |
| 75 | dec := new(mime.WordDecoder) |
| 76 | got, err := dec.DecodeHeader(msg.Header.Get("Subject")) |
| 77 | if err != nil { |
| 78 | t.Fatalf("decode subject: %v", err) |
| 79 | } |
| 80 | if got != "Résumé 📄 for アリス" { |
| 81 | t.Errorf("decoded subject = %q, want %q", got, "Résumé 📄 for アリス") |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | // TestComposeMessageSubjectCRLFNeutralized confirms that even if a CRLF |
| 86 | // reaches ComposeMessage (e.g. some future caller skips the API-layer |
nothing calls this directly
no test coverage detected