def test_card_leave():
"""
The _leave method is called when the card is hidden from the user. Ensure
that the sound player is stopped.
"""
card = Card("title")
card.player = mock.MagicMock()
card._leave(card)
card.player.stop.assert_called_once_with()
def test_card_enter():
"""
The _enter method is called when the card is displayed to the user. Ensure
that the sound player starts from position zero and the auto advance is
scheduled.
"""
card = Card("title")
card.player = mock.MagicMock()
card.auto_advance = 1.5
with mock.patch("pypercard.core.Clock") as mock_clock:
card._enter(card)
mock_clock.schedule_once.assert_called_once_with(
card._next_card, card.auto_advance)
card.player.play.assert_called_once_with()
card.player.seek.assert_called_once_with(0)
