public void AssignmentEnsureMatchShowSingleWillFailIfInputDoesNotMatch()
        {
            Assignment test = new Assignment();

            test.CheckIfInputMatchesShowSinglePattern("showw a");

            Assert.IsFalse(test.IsInputValid);
        }
        public void AssignmentEnsureAssignmentNameChangedCorrectlyForShowSinglePattern()
        {
            Assignment test = new Assignment();

            test.CheckIfInputMatchesShowSinglePattern("show a");

            string expected_variable_name = "a";
            string actual_variable_name   = test.AssignmentVariable;

            Assert.AreEqual(expected_variable_name, actual_variable_name);
        }