Add tests modules docstrings

setup.cfg

@@ -30,7 +30,7 @@ per-file-ignores =
     moviepy/audio/fx/*.py: D100
     moviepy/video/fx/*.py: D100
     # tests doesn't require docstring (although is recommended)
-    tests/*.py: D101,D102,D103
+    tests/*.py: D100,D101,D102,D103
     # examples don't require module docstring
     # allow 'from moviepy import *' in examples
     examples/*.py: D100, F403, F405

tests/test_BitmapClip.py

@@ -1,3 +1,5 @@
+"""BitmapClip tests."""
+
 import numpy as np
 import pytest
 

tests/test_Clip.py

@@ -1,3 +1,5 @@
+"""Clip tests."""
+
 import copy
 
 import numpy as np

tests/test_TextClip.py

@@ -1,3 +1,5 @@
+"""TextClip tests."""
+
 import pytest
 
 from moviepy.utils import close_all_clips

tests/test_VideoClip.py

@@ -1,3 +1,5 @@
+"""VideoClip tests."""
+
 import copy
 import os
 

tests/test_examples.py

@@ -1,3 +1,5 @@
+"""Examples tests."""
+
 import os
 
 import numpy as np

tests/test_fx.py

@@ -1,3 +1,5 @@
+"""MoviePy effects tests."""
+
 import decimal
 import importlib
 import math