test: add TestFfmpegVideoProducer

test/test_producers.py

@@ -10,6 +10,34 @@ class MockFeature():
     def to_json(self):
         return {"interval": self.interval}
 
+class TestFfmpegVideoProducer(unittest.TestCase):
+    """Test FfmpegVideoProducer (produces videos using ffmpeg)"""
+
+    def test_init_empty(self):
+        # test with no features -- should raise ValueError
+        with self.assertRaises(ValueError):
+            producers.FfmpegVideoProducer(features=None)
+
+    def test_init(self):
+        # test with features
+        feature = MockFeature(interval="")
+        features = [feature]
+        vidprod = producers.FfmpegVideoProducer(features=features)
+        self.assertEqual(vidprod.features, features)
+
+    def test_ffmpeg_feature_to_clip(self):
+        # TODO
+        pass
+
+    def test_ffmpeg_concat_clips(self):
+        # TODO
+        pass
+
+    def test_produce(self):
+        """Test we can call produce without error"""
+        # TODO
+        pass
+
 class TestVisualisationProducer(unittest.TestCase):
     """Test VisualisationProducer (produces matplotlib visualisations)"""