1.Make some simple changes to the table so that passing tests now fail and vice versa. Run the test again. 2. Now make some simple changes to the table such as entering data in the wrong format, to...

1.Make some simple changes to the table so that passing tests now fail and vice versa. Run the test again. 2. Now make some simple changes to the table such as entering data in the wrong format, to see what happens when things don’t work properly. This will make it easier, later, to work out what may have caused a problem when the tests don’t run as you expected.