test: add TestLAFE

TestLoudAudioFeatureExtractor -- init only

test/test_feature_extractors.py

@@ -60,3 +60,10 @@ class TestRandomFeatureExtractor(unittest.TestCase):
         test_extractor.teardown()
         self.assertTrue(test_extractor.features)
 
+class TestLoudAudioFeatureExtractor(unittest.TestCase):
+    """Test LoudAudioFeatureExtractor"""
+    def test_init(self):
+        video_source = TestSourceMedia().one_colour_silent_audio()
+        test_extractor = extractors.LoudAudioFeatureExtractor(input_files=video_source)
+        self.assertTrue(test_extractor)
+