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Add test for EMLToMsgFromString with embedded content
The new test ensures that the EMLToMsgFromString function properly handles an EML that contains embedded content. The expected subject content and number of embedded objects are checked to confirm correct parsing.
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1 changed files with 40 additions and 11 deletions
51
eml_test.go
51
eml_test.go
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@ -152,6 +152,33 @@ ICAgc2V2ZXJhbAogICAgICAgICAgICBuZXdsaW5lcwoJICAgICAgICAgICAgYW5kCgkgICAgc3Bh
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Y2VzCiAgICAgaW4KICBpdAouCgpBcyB3ZWxsIGFzIGFuIGVtb2ppOiDwn5mCCg==
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--45c75ff528359022eb03679fbe91877d75343f2e1f8193e349deffa33ff7--`
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exampleMailPlainB64WithEmbed = `Date: Wed, 01 Nov 2023 00:00:00 +0000
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MIME-Version: 1.0
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Message-ID: <1305604950.683004066175.AAAAAAAAaaaaaaaaB@go-mail.dev>
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Subject: Example mail // plain text base64 with embed
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User-Agent: go-mail v0.4.1 // https://github.com/wneessen/go-mail
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X-Mailer: go-mail v0.4.1 // https://github.com/wneessen/go-mail
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From: "Toni Tester" <go-mail@go-mail.dev>
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To: <go-mail+test@go-mail.dev>
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Cc: <go-mail+cc@go-mail.dev>
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Content-Type: multipart/related;
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boundary=ffbcfb94b44e5297325102f6ced05b3b37f1d70fc38a5e78dc73c1a8434b
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--ffbcfb94b44e5297325102f6ced05b3b37f1d70fc38a5e78dc73c1a8434b
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Content-Transfer-Encoding: quoted-printable
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Content-Type: text/plain; charset=UTF-8
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This is a test body string
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--ffbcfb94b44e5297325102f6ced05b3b37f1d70fc38a5e78dc73c1a8434b
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Content-Disposition: inline; filename="pixel.png"
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Content-Id: <pixel.png>
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Content-Transfer-Encoding: base64
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Content-Type: image/png; name="pixel.png"
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iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NgYGD4DwABBAEAwS2O
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UAAAAABJRU5ErkJggg==
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--ffbcfb94b44e5297325102f6ced05b3b37f1d70fc38a5e78dc73c1a8434b--`
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)
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func TestEMLToMsgFromString(t *testing.T) {
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@ -278,18 +305,20 @@ func TestEMLToMsgFromStringWithAttachment(t *testing.T) {
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t.Errorf("EMLToMsgFromString of EML with attachment failed: expected no. of attachments: %d, but got: %d",
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1, len(msg.attachments))
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}
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contentTypeHeader := msg.GetGenHeader(HeaderContentType)
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if len(contentTypeHeader) != 1 {
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t.Errorf("EMLToMsgFromString of EML with attachment failed: expected no. of content-type header: %d, "+
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"but got: %d", 1, len(contentTypeHeader))
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}
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func TestEMLToMsgFromStringWithEmbed(t *testing.T) {
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wantSubject := "Example mail // plain text base64 with embed"
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msg, err := EMLToMsgFromString(exampleMailPlainB64WithEmbed)
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if err != nil {
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t.Errorf("EML with embed failed: %s", err)
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}
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contentTypeSplit := strings.SplitN(contentTypeHeader[0], "; ", 2)
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if len(contentTypeSplit) != 2 {
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t.Error("failed to split Content-Type header")
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return
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if subject := msg.GetGenHeader(HeaderSubject); len(subject) > 0 && !strings.EqualFold(subject[0], wantSubject) {
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t.Errorf("EMLToMsgFromString of EML with embed failed: expected subject: %s, but got: %s",
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wantSubject, subject[0])
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}
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if !strings.EqualFold(contentTypeSplit[0], "multipart/mixed") {
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t.Errorf("EMLToMsgFromString of EML with attachment failed: expected content-type: %s, "+
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"but got: %s", "multipart/mixed", contentTypeSplit[0])
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if len(msg.embeds) != 1 {
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t.Errorf("EMLToMsgFromString of EML with embed failed: expected no. of embeds: %d, but got: %d",
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1, len(msg.attachments))
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}
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}
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