def test_zero_pow_zero(self): self.assertEqual(exponent.exp(0, 0), "(undefined)")
def test_two_pow_zero(self): self.assertEqual(exponent.exp(2, 0), 1)
def test_square_of_negative_two(self): self.assertEqual(exponent.exp(-2, 2), 4)
def test_two_pow_negative_two(self): self.assertEqual(exponent.exp(2, -2), 0.25)
def test_square_of_two(self): self.assertEqual(exponent.exp(2, 2), 4)