def test_move_to_lilly_pad_updates_frog_current_lilly_pad(self):
# arrange
mock_pad = mock.create_autospec(LillyPad)
mock_pad.circle = Circle(Point(0, 0), 3)
position = Point(2, 2)
frog = Frog(position, 1, 0)
# act
frog._move_to_lilly_pad(mock_pad)
# assert
assert frog.current_lilly_pad == mock_pad
def test_move_to_lilly_pad_calls_lilly_pad_visit_method(self):
# arrange
mock_pad = mock.create_autospec(LillyPad)
mock_pad.circle = Circle(Point(0, 0), 3)
position = Point(2, 2)
frog = Frog(position, 1, 0)
# act
frog._move_to_lilly_pad(mock_pad)
# assert
assert mock_pad.visit.called
def test_move_to_lilly_pad_calls_leave_on_current_lilly_pad(self):
# arrange
mock_current_pad = mock.create_autospec(LillyPad)
mock_dest_pad = mock.create_autospec(LillyPad)
mock_dest_pad.circle = Circle(Point(0, 0), 3)
position = Point(2, 2)
frog = Frog(position, 1, 0)
frog.current_lilly_pad = mock_current_pad
# act
frog._move_to_lilly_pad(mock_dest_pad)
# assert
assert mock_current_pad.leave.called