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If you generate tests from code, is that TDD?

Posted by: Jack Vaughan on February 19, 2008 DIGG

Writes Bob Martin: TDD is the act of using tests as a way to drive the development of the system. You write unit test code first, and then you write the application code that makes that code pass. Clearly, generating tests from existing code violates that simple rule.

He continues:

In TDD, programmers state their intent twice; once in the test code, and again in the production code. These two statements of intent verify each other. The tests, test the intent of the code, and the code tests the intent of the tests. This works because it is a human that makes both entries! The human must state the intent twice, but in two complementary forms. This vastly reduces many kinds of errors; as well as providing significant insight into improved design.

http://blog.objectmentor.com/articles/2008/01/10/generated-tests-and-tdd

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