def test_Vid_add(self):
mov = Video()
N = 10
for i in range(N):
mov.add(plt.Figure())
assert mov.nframes == N
assert len(os.listdir(mov.frame_dir)) == N
def test_Vid_del(self):
mov = Video()
mov.add(plt.Figure())
frame_dir = mov.frame_dir
del mov
assert not os.path.isdir(frame_dir)
