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Test-driven 
 Development
 with PHPUnit Oliver Klee, 2017-07 @oliklee [email protected]

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Unit
 Tests?

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Manual testing is cumbersome

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Automated
 testing
 is fast

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Unit tests for the
 Realty Manager
 TYPO3 extension

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>1600 tests

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< 60 seconds

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Verify that your code does what you expect

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Make sure that
 your changes won‘t
 break anything

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Keep others
 from breaking your code

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Don’t break anything
 even in complex
 projects

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Create a safety net for refactoring or for
 TYPO3 updates

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Improve the structure of your code

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Green feels good!

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Let’s get
 some terms
 straight

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Testsuite Testcase Test Assertion Test Test Testcase

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Code test-first write
 test write
 code refactor

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