def test_multiply_negative_numbers(self): self.assertEquals(multiply(-10, -6), 60)
def test_multiply_positive_numbers(self): self.assertEquals(multiply(10, 6), 60)
def test_multiply_positive_and_negative(self): self.assertEquals(multiply(10, -6), -60)
def test_second_argument_not_number(self): self.assertEquals(multiply(3, 'asd'), 'error')
def test_first_argument_not_number(self): self.assertEquals(multiply('asd', 2), 'error')
def test_multiply_negative_and_zero(self): self.assertEquals(multiply(-10, 0), 0)
def test_multiply_positive_and_zero(self): self.assertEquals(multiply(10, 0), 0)
def test_multiply_zeros(self): self.assertEquals(multiply(0, 0), 0)