def test_dimensions(self):
first = Field(0, 0)
second = Field(9, 9)
rect = Rectangle(first, second)
self.assertEqual(rect.height(), 10)
self.assertEqual(rect.width(), 10)
def assert_rectangle_shape(img_np, rectangle: Rectangle, message: str):
img_shape = img_np.shape
assert img_shape[0] == rectangle.height(), message
assert img_shape[1] == rectangle.width(), message