def test_mixture(self): self.assertEqual(mn.max_negative([-20,5,10,-2,-1,10,0]),-1, msg="\ should return -1")
def test_all_negative(self): self.assertEqual(mn.max_negative([-20,-10,5,-50,-3]),-3, msg="\ should return -3")
def test_all_positive(self): self.assertEqual(mn.max_negative([20,10,10,5,2,1,10]),None, msg="\ should return -1")
def test_all_negative(self): self.assertEqual(mn.max_negative([-20, -10, 5, -50, -3]), -3, msg="\ should return -3")
def test_all_positive(self): self.assertEqual(mn.max_negative([20, 10, 10, 5, 2, 1, 10]), None, msg="\ should return -1")
def test_mixture(self): self.assertEqual(mn.max_negative([-20, 5, 10, -2, -1, 10, 0]), -1, msg="\ should return -1")