def test_release_anchor(self, mock_pygame, mock_load_png):
"""Test that an anchored ball is released."""
self._configure_mocks(mock_pygame, mock_load_png)
mock_pygame.sprite.spritecollide.return_value = []
ball = Ball((100, 100), 2.32, 8)
ball.anchor((200, 200))
ball.update()
ball.release(4.01)
self.assertIsNone(ball._anchor)
self.assertEqual(ball.angle, 4.01)
def test_no_collision_when_ball_anchored(self, mock_pygame, mock_load_png):
"""Test that the ball's collision detection behaviour does not
execute when the ball is anchored (not free moving itself).
"""
mock_sprite = self._configure_mocks(mock_pygame, mock_load_png)
mock_sprite.rect.left = 305
mock_sprite.rect.top = 429
mock_pygame.sprite.spritecollide.return_value = []
ball = Ball((100, 100), 2.32, 8)
ball.anchor(mock_sprite, rel_pos=(5, 5))
ball.update()
self.assertEqual(mock_pygame.sprite.spritecollide.call_count, 0)
def test_anchor_static_object(self, mock_pygame, mock_load_png):
"""Test that the ball's position is not recalculated when the ball is
anchored to a static object.
"""
self._configure_mocks(mock_pygame, mock_load_png)
mock_pygame.sprite.spritecollide.return_value = []
ball = Ball((100, 100), 2.32, 8)
ball.anchor((200, 200))
ball.update()
# Assert that a new Rectangle mock was called with the fixed
# position and dimensions of the anchored ball.
mock_pygame.Rect.assert_called_once_with((200, 200), (10, 10))
def test_anchor_sprite(self, mock_pygame, mock_load_png):
"""Test that the ball's position is not recalculated when the ball is
anchored relative to another sprite.
"""
mock_sprite = self._configure_mocks(mock_pygame, mock_load_png)
mock_sprite.rect.left = 305
mock_sprite.rect.top = 429
mock_pygame.sprite.spritecollide.return_value = []
ball = Ball((100, 100), 2.32, 8)
ball.anchor(mock_sprite, rel_pos=(5, 5))
ball.update()
# Assert that a new Rectangle mock was called with the position
# of the sprite taking into account the relative position.
mock_pygame.Rect.assert_called_once_with(305 + 5, 429 + 5, 10, 10)