def test_calculateMass(self):
    self.assertEqual(Pyramid.calculateMass(self, 18204, 15000), 273060000)
    self.assertEqual(Pyramid.calculateMass(self, 341602, 15000), 5124030000)
def test_calculateMass(self):
    self.assertEqual(Pyramid.calculateMass(self, 18204, 15000), 273060000)
    self.assertEqual(Pyramid.calculateMass(self, 341602, 15000), 5124030000)