BUG: Fix animation test

dopplershift · dopplershift · commit ca858b798de4 · 2017-02-07T11:19:37.000-07:00
Lack of saving the animation caused it to never run the callbacks.
diff --git a/lib/matplotlib/tests/test_animation.py b/lib/matplotlib/tests/test_animation.py
@@ -162,6 +162,8 @@ def animate(i):
 
     anim = animation.FuncAnimation(fig, animate, init_func=init,
                                    frames=iter(range(5)))
+    writer = NullMovieWriter()
+    anim.save('unused.null', writer=writer)
 
 
 def test_movie_writer_registry():
