fix_add_special_feature_tests #778

tests/test_special_features.py

@@ -10,7 +10,9 @@
 
 class TestSpecialFeatures(unittest.TestCase):
     def setUp(self):
+        # Define paths to audio files
         self.AUDIO_FILE_EN = os.path.join(os.path.dirname(os.path.realpath(__file__)), "english.wav")
+        self.AUDIO_FILE_EN_MP3 = os.path.join(os.path.dirname(os.path.realpath(__file__)), "english.mp3")
         self.addTypeEqualityFunc(str, self.assertSameWords)
 
     @unittest.skipIf(sys.platform.startswith("win"), "skip on Windows")
@@ -21,6 +23,24 @@ def test_sphinx_keywords(self):
         self.assertEqual(r.recognize_sphinx(audio, keyword_entries=[("wan", 0.95), ("too", 1.0), ("tree", 1.0)]), "tree too wan")
         self.assertEqual(r.recognize_sphinx(audio, keyword_entries=[("un", 0.95), ("to", 1.0), ("tee", 1.0)]), "tee to un")
 
+    # Added test for MP3
+    # Test that attempting to recognize speech from an incompatible audio file raises a ValueError.
+    def test_incompatible_audio_file_error(self):
+
+        # Create a Recognizer instance
+        r = sr.Recognizer()
+        # Verify that a ValueError is raised when an incompatible audio file is used
+        with self.assertRaises(ValueError) as context:
+            # Load the audio file for recognition
+            # Attempt to record audio from the MP3 file
+            with sr.AudioFile(self.AUDIO_FILE_EN_MP3) as source:r.record(source) 
+
+        # Check that the raised ValueError contains the expected message
+        self.assertEqual(
+            str(context.exception),
+            "Audio file could not be read as PCM WAV, AIFF/AIFF-C, or Native FLAC; check if file is corrupted or in another format"
+        )
+
     def assertSameWords(self, tested, reference, msg=None):
         set_tested = set(tested.split())
         set_reference = set(reference.split())