def testPosMulNeg(self): self.assertEqual(task1(7, -7), -49)
def testNegMulNeg(self): self.assertEqual(task1(-9,-9), 81)
def testPosMulPos(self): self.assertEqual(task1(3, 7), 21)
def testNegMulZero(self): self.assertEqual(task1(-7,0), 0, "-7 * 0 = 0")
def testNegMulPos(self): self.assertEqual(task1(-5, 3), -15, "-5 * 3 = -15")
def testZeroMulNeg(self): self.assertEqual(task1(0, -8), 0)
def testZeroMulPos(self): self.assertEqual(task1(0, 3), 0)
def testPosMulZero(self): self.assertEqual(task1(6, 0), 0)