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    <p><strong>If you are writing your tests after you've written your code and making them pass, you are not doing TDD</strong> (nor are you getting any benefits of Test-First or Test-Driven development.. check out SO questions for definitive books on TDD)</p> <blockquote> <p>One of the things I've noticed with using mocker is that it's easier to write the application code first and then go back and write the tests second, since most of the time I'm mocking many method calls and the syntax to write the mocked calls is much more verbose (thus harder to write) than the application code. It's easier to write the app code and then model the test code off of that.</p> </blockquote> <p>Of course, its easier because you are just testing that the sky is orange after you made it orange by painting it with a specific kind of brush. This is retrofitting tests (for self-assurance). Mocks are good but you should know how and when to use them - Like the saying goes 'When you have a hammer everything looks like a nail' It's also easy to write a whole load of unreadable and not-as-helpful-as-can-be tests. The time spent understanding what the test is about is time lost that can be used to fix broken ones. </p> <p>And the point is: </p> <ul> <li>Read <a href="http://martinfowler.com/articles/mocksArentStubs.html#ClassicalAndMockistTesting" rel="nofollow noreferrer">Mocks aren't stubs - Martin Fowler</a> if you haven't already. Google out some documented instances of good <a href="http://martinfowler.com/eaaDev/ModelViewPresenter.html" rel="nofollow noreferrer">ModelViewPresenter</a> patterned GUIs (Fake/Mock out the UIs if necessary). </li> <li>Study your options and choose wisely. I'll play the guy with the halo on your left shoulder in white saying 'Don't do it.' Read this question as to <a href="https://stackoverflow.com/questions/59195/how-are-mocks-meant-to-be-used">my reasons</a> - St. Justin is on your right shoulder. I believe he has also something to say:) </li> </ul>
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