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Test Driven Development has reached maturity; At least in the middle-tier. Goad Testing takes you a level deeper, examining what tests really are and using the outcome of that exercise to derive new ways of keeping software - both production and test - healthy, flexible, and on-specification. In this book, you will learn that the true essence of a test is neither its power to specify nor its power to verify. Rather, it is its power to influence the process by which a developer does his or her work. In other words: Tests are tiny units of process-improvement. You will also learn a concrete methodology that guarantees your tests can pass and can fail. Continuously verifying this fact ensures that each test makes a distinction, further augmenting its ability to specify, verify, and generally make our lives easier.