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Test-Driven Java Development - Second Edition by Viktor Farcic, Alex Garcia

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Speed is the key

Imagine a game of ping pong (or table tennis). The game is very fast; sometimes it is hard even to follow the ball when professionals play the game. TDD is very similar. TDD veterans tend not to spend more than a minute on either side of the table (test and implementation). Write a short test and run all tests (ping), write the implementation and run all tests (pong), write another test (ping), write the implementation of that test (pong), refactor and confirm that all tests are passing (score), and then repeat—ping, pong, ping, pong, ping, pong, score, serve again. Do not try to make the perfect code. Instead, try to keep the ball rolling until you think that the time is right to score (refactor).

Time between switching ...

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