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Refactored the way EML files are tested, the errors are now handled more efficiently. Temporary directory and file creation, as well as file writing, have been moved to a helper function named 'stringToTempFile'. Moreover, additional test cases were added to ensure proper parsing failure for various types of email-related errors.
This commit is contained in:
Winni Neessen 2024-06-24 14:30:28 +02:00
parent 0cec8a28f7
commit db9893f15a
Signed by: wneessen
GPG key ID: 385AC9889632126E
1 changed files with 83 additions and 20 deletions
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103
eml_test.go
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@ -403,22 +403,13 @@ func TestEMLToMsgFromFile(t *testing.T) {
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
tempDir, err := os.MkdirTemp("", fmt.Sprintf("*-%s", tt.name))
if err != nil {
t.Errorf("failed to create temp dir: %s", err)
return
}
tempDir, tempFile, err := stringToTempFile(tt.eml, tt.name)
defer func() {
if err = os.RemoveAll(tempDir); err != nil {
t.Error("failed to remove temp dir:", err)
}
}()
err = os.WriteFile(fmt.Sprintf("%s/%s.eml", tempDir, tt.name), []byte(tt.eml), 0666)
if err != nil {
t.Error("failed to write mail to temp file:", err)
return
}
msg, err := EMLToMsgFromFile(fmt.Sprintf("%s/%s.eml", tempDir, tt.name))
msg, err := EMLToMsgFromFile(tempFile)
if err != nil {
t.Errorf("failed to parse EML: %s", err)
}
@ -434,50 +425,108 @@ func TestEMLToMsgFromFile(t *testing.T) {
}
func TestEMLToMsgFromReaderFailing(t *testing.T) {
mailbuf := bytes.Buffer{}
mailbuf.WriteString(exampleMailPlainBrokenFrom)
_, err := EMLToMsgFromReader(&mailbuf)
mailbuf := bytes.NewBufferString(exampleMailPlainBrokenFrom)
_, err := EMLToMsgFromReader(mailbuf)
if err == nil {
t.Error("EML from Reader with broken FROM was supposed to fail, but didn't")
}
mailbuf.Reset()
mailbuf.WriteString(exampleMailPlainBrokenHeader)
_, err = EMLToMsgFromReader(&mailbuf)
_, err = EMLToMsgFromReader(mailbuf)
if err == nil {
t.Error("EML from Reader with broken header was supposed to fail, but didn't")
}
mailbuf.Reset()
mailbuf.WriteString(exampleMailPlainB64BrokenBody)
_, err = EMLToMsgFromReader(&mailbuf)
_, err = EMLToMsgFromReader(mailbuf)
if err == nil {
t.Error("EML from Reader with broken body was supposed to fail, but didn't")
}
mailbuf.Reset()
mailbuf.WriteString(exampleMailPlainBrokenBody)
_, err = EMLToMsgFromReader(&mailbuf)
_, err = EMLToMsgFromReader(mailbuf)
if err == nil {
t.Error("EML from Reader with broken body was supposed to fail, but didn't")
}
mailbuf.Reset()
mailbuf.WriteString(exampleMailPlainUnknownContentType)
_, err = EMLToMsgFromReader(&mailbuf)
_, err = EMLToMsgFromReader(mailbuf)
if err == nil {
t.Error("EML from Reader with unknown content type was supposed to fail, but didn't")
}
mailbuf.Reset()
mailbuf.WriteString(exampleMailPlainNoContentType)
_, err = EMLToMsgFromReader(&mailbuf)
_, err = EMLToMsgFromReader(mailbuf)
if err == nil {
t.Error("EML from Reader with no content type was supposed to fail, but didn't")
}
mailbuf.Reset()
mailbuf.WriteString(exampleMailPlainUnsupportedTransferEnc)
_, err = EMLToMsgFromReader(&mailbuf)
_, err = EMLToMsgFromReader(mailbuf)
if err == nil {
t.Error("EML from Reader with unsupported Transer-Encoding was supposed to fail, but didn't")
}
}
func TestEMLToMsgFromFileFailing(t *testing.T) {
tempDir, tempFile, err := stringToTempFile(exampleMailPlainBrokenFrom, "testmail")
_, err = EMLToMsgFromFile(tempFile)
if err == nil {
t.Error("EML from Reader with broken FROM was supposed to fail, but didn't")
}
if err = os.RemoveAll(tempDir); err != nil {
t.Error("failed to remove temp dir:", err)
}
tempDir, tempFile, err = stringToTempFile(exampleMailPlainBrokenHeader, "testmail")
_, err = EMLToMsgFromFile(tempFile)
if err == nil {
t.Error("EML from Reader with broken header was supposed to fail, but didn't")
}
if err = os.RemoveAll(tempDir); err != nil {
t.Error("failed to remove temp dir:", err)
}
tempDir, tempFile, err = stringToTempFile(exampleMailPlainB64BrokenBody, "testmail")
_, err = EMLToMsgFromFile(tempFile)
if err == nil {
t.Error("EML from Reader with broken body was supposed to fail, but didn't")
}
if err = os.RemoveAll(tempDir); err != nil {
t.Error("failed to remove temp dir:", err)
}
tempDir, tempFile, err = stringToTempFile(exampleMailPlainBrokenBody, "testmail")
_, err = EMLToMsgFromFile(tempFile)
if err == nil {
t.Error("EML from Reader with broken body was supposed to fail, but didn't")
}
if err = os.RemoveAll(tempDir); err != nil {
t.Error("failed to remove temp dir:", err)
}
tempDir, tempFile, err = stringToTempFile(exampleMailPlainUnknownContentType, "testmail")
_, err = EMLToMsgFromFile(tempFile)
if err == nil {
t.Error("EML from Reader with unknown content type was supposed to fail, but didn't")
}
if err = os.RemoveAll(tempDir); err != nil {
t.Error("failed to remove temp dir:", err)
}
tempDir, tempFile, err = stringToTempFile(exampleMailPlainNoContentType, "testmail")
_, err = EMLToMsgFromFile(tempFile)
if err == nil {
t.Error("EML from Reader with no content type was supposed to fail, but didn't")
}
if err = os.RemoveAll(tempDir); err != nil {
t.Error("failed to remove temp dir:", err)
}
tempDir, tempFile, err = stringToTempFile(exampleMailPlainUnsupportedTransferEnc, "testmail")
_, err = EMLToMsgFromFile(tempFile)
if err == nil {
t.Error("EML from Reader with unsupported Transer-Encoding was supposed to fail, but didn't")
}
if err = os.RemoveAll(tempDir); err != nil {
t.Error("failed to remove temp dir:", err)
}
}
func TestEMLToMsgFromStringBrokenDate(t *testing.T) {
_, err := EMLToMsgFromString(exampleMailPlainNoEncInvalidDate)
if err == nil {
@ -544,3 +593,17 @@ func TestEMLToMsgFromStringWithEmbed(t *testing.T) {
1, len(msg.attachments))
}
}
// stringToTempFile is a helper method that will create a temporary file form a give data string
func stringToTempFile(data, name string) (string, string, error) {
tempDir, err := os.MkdirTemp("", fmt.Sprintf("*-%s", name))
if err != nil {
return tempDir, "", fmt.Errorf("failed to create temp dir: %w", err)
}
filePath := fmt.Sprintf("%s/%s", tempDir, name)
err = os.WriteFile(filePath, []byte(data), 0666)
if err != nil {
return tempDir, "", fmt.Errorf("failed to write data to temp file: %w", err)
}
return tempDir, filePath, nil
}