def test_inflate__smaller(self):
"The inflate method inflates around the center of the rectangle"
r = Rect(2, 4, 6, 8)
r2 = r.inflate(-4, -6)
self.assertEqual(r.center, r2.center)
self.assertEqual(r.left + 2, r2.left)
self.assertEqual(r.top + 3, r2.top)
self.assertEqual(r.right - 2, r2.right)
self.assertEqual(r.bottom - 3, r2.bottom)
self.assertEqual(r.width - 4, r2.width)
self.assertEqual(r.height - 6, r2.height)
def test_inflate__larger(self):
"The inflate method inflates around the center of the rectangle"
r = Rect(2, 4, 6, 8)
r2 = r.inflate(4, 6)
self.assertEqual(r.center, r2.center)
self.assertEqual(r.left - 2, r2.left)
self.assertEqual(r.top - 3, r2.top)
self.assertEqual(r.right + 2, r2.right)
self.assertEqual(r.bottom + 3, r2.bottom)
self.assertEqual(r.width + 4, r2.width)
self.assertEqual(r.height + 6, r2.height)
def test_float_inflated(self):
r = Rect(0, 0, 5, 5)
self.assertEqual(r.inflate(1.5, 1.5), (-0.75, -0.75, 6.5, 6.5))
