matplotlib
diff --git a/‎lib/matplotlib/tests/test_animation.py
Copy file name to clipboardExpand all lines: lib/matplotlib/tests/test_animation.py
+4-1Lines changed: 4 additions & 1 deletion b/‎lib/matplotlib/tests/test_animation.py
Copy file name to clipboardExpand all lines: lib/matplotlib/tests/test_animation.py
+4-1Lines changed: 4 additions & 1 deletion
@@ -82,7 +82,10 @@ def test_null_movie_writer(anim):
     assert writer.outfile == filename
     assert writer.dpi == dpi
     assert writer.args == ()
-    assert writer.savefig_kwargs == savefig_kwargs
+    # we enrich the savefig kwargs to ensure we composite transparent
+    # output to as opaque background
+    for k, v in savefig_kwargs:
+        assert writer.savefig_kwargs[k] == v
     assert writer._count == anim.save_count