def test_equal_2(self):
     self.assertEqual(cup_volume(10, 8, 10), 638.79)
 def test_equal_1(self):
     self.assertEqual(cup_volume(1, 1, 1), 0.79)
 def test_equal_4(self):
     self.assertEqual(cup_volume(13.123, 123.12, 1), 4436.57)
 def test_equal_5(self):
     self.assertEqual(cup_volume(5, 12, 31), 1858.51)
 def test_equal_3(self):
     self.assertEqual(cup_volume(1000, 1000, 1000), 785398163.4)