Inclusive Testing

An inclusive unit test is one where you actively try to use the new code changes. For example if you added code that did something when an invoice was saved you would go through the process of saving an invoice. You should try as many permutations as seem relevant. For example if you were testing the amount of a fee at the time the invoice was saved you should save the invoice with lots of different fee amounts and types to ensure there are no defects in the new code.