Test Driven Development

The basic philosophy in this approach is to develop a series of tests against which software is written.

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The idea is commonly termed RED-GREEN-REFACTOR

RED- write a test, run the test, it will fall, write just enough production code to pass the test (GREEN)

GREEN - push your code to a repo (only push code that passes it's tests to a repo)

REFACTOR - clean up the code, make sure the tests still pass

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