class CartesianRectangleTest(unittest.TestCase):
def setUp(self):
self.rectangle = CartesianRectangle(width=3, height=2,
center=Point(x=10, y=20))
def test_it_has_an_updatable_center(self):
self.rectangle.center |should| equal_to(Point(x=10, y=20))
self.rectangle.center = Point(x=20, y=10)
self.rectangle.center |should| equal_to(Point(x=20, y=10))
def test_it_has_four_vertices(self):
self.rectangle |should| have(4).vertices
self.rectangle.vertices() |should| include_all_of([
Point(x=7, y=18), Point(x=13, y=18),
Point(x=7, y=22), Point(x=13, y=22)])
def test_it_updates_its_vertices_when_center_changes(self):
self.rectangle.center = Point(x=9, y=19)
self.rectangle.vertices() |should| include_all_of([
Point(x=6, y=17), Point(x=12, y=17),
Point(x=6, y=21), Point(x=12, y=21)])
def test_it_knows_if_it_is_a_square(self):
point = Point(1, 1)
CartesianRectangle(width=3, height=2, center=point) |should_not| be_square
CartesianRectangle(width=3, height=3, center=point) |should| be_square
def setUp(self):
self.rectangle = CartesianRectangle(width=3, height=2,
center=Point(x=10, y=20))
