def test_empty(self):
     """Test an empty list"""
     argument = []
     expected = []
     fmm.find_min_max(argument)
     self.assertEqual(expected, argument,
                      "The list is empty.")
 def test_single(self):
     """Test a singular list"""
     argument = [4]
     expected =[4]
     fmm.find_min_max(argument)
     self.assertEqual(expected, argument,
                      "The list has a single value.")
    def test_triple_ascending(self):
        """Test the example given in problem"""
        argument = fmm.find_min_max([-5, 0, 3, 12])
        expected = -5, 12

        self.assertEqual(expected, argument,
                         "This test is a given.")