test: add test for video_note media type

tests/test_media_downloader.py

@@ -60,6 +60,7 @@ class MockMessage:
         self.photo = kwargs.get("photo", None)
         self.video = kwargs.get("video", None)
         self.voice = kwargs.get("voice", None)
+        self.video_note = kwargs.get("video_note", None)
         self.chat = Chat(kwargs.get("chat_id", None))
 
 
@@ -91,6 +92,12 @@ class MockVideo:
         self.mime_type = kwargs["mime_type"]
 
 
+class MockVideoNote:
+    def __init__(self, **kwargs):
+        self.mime_type = kwargs["mime_type"]
+        self.date = kwargs["date"]
+
+
 class MockEventLoop:
     def __init__(self):
         pass
@@ -317,6 +324,28 @@ class MediaDownloaderTestCase(unittest.TestCase):
             result,
         )
 
+        # Test VideoNote
+        message = MockMessage(
+            id=6,
+            media=True,
+            video_note=MockVideoNote(
+                mime_type="video/mp4",
+                date=1564066430,
+            ),
+        )
+        result = self.loop.run_until_complete(
+            async_get_media_meta(message.video_note, "video_note")
+        )
+        self.assertEqual(
+            (
+                platform_generic_path(
+                    "/root/project/video_note/video_note_2019-07-25T14:53:50.mp4"
+                ),
+                "mp4",
+            ),
+            result,
+        )
+
     @mock.patch("media_downloader.THIS_DIR", new=MOCK_DIR)
     @mock.patch("media_downloader.asyncio.sleep", return_value=None)
     @mock.patch("media_downloader.logger")