def test_vertical_direction(self):
a = Rectangle(1, 3, 4, 2) # center:(3, 4)
b = Rectangle(2, 0, 4, 4) # center:(4, 2)
r1 = SpatialRelation(a, b) # v = (1, -2) -> degree ~ 296
r2 = SpatialRelation(b, a) # v = (1, -2) -> degree ~ 116
self.assertFalse(r1.right())
self.assertFalse(r1.left())
self.assertFalse(r1.above())
self.assertTrue(r1.below())
self.assertFalse(r2.right())
self.assertFalse(r2.left())
self.assertTrue(r2.above())
self.assertFalse(r2.below())
def test_horizontal_direction(self):
a = Rectangle(3, 1, 2, 4) # center:(4, 3)
b = Rectangle(5, 2, 2, 4) # center:(6, 4)
r1 = SpatialRelation(a, b) # v = (2, 1) -> degree ~ 26
r2 = SpatialRelation(b, a) # v = (-2, -1) -> degree ~ 206
self.assertTrue(r1.right())
self.assertFalse(r1.left())
self.assertFalse(r1.above())
self.assertFalse(r1.below())
self.assertFalse(r2.right())
self.assertTrue(r2.left())
self.assertFalse(r2.above())
self.assertFalse(r2.below())