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Clean and Quality Unit Tests

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November 23, 2013
Technology
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Clean and Quality Unit Tests

Talk about readability and high quality of unit tests written in PHPUnit

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codecleaner

November 23, 2013

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Transcript

  1. Clean & Quality unit tests

  2. Wojtek Zieliński @codecleaner

  3. •  Names matters •  Exceptions •  Test Doubles •  Stubbing

    Collections •  Arrange Act Assert What’s it all about?

  4. Names matters

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  13. Test a single concept in each test function Robert C.

    Martin
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  24. Exceptions

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  37. Test Doubles

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  41. How does getMock() really work? •  Does Configuration class exist?

    •  Create Mock_Configuration_123abc class extends Configuration class •  Create instance of that class •  Return instance

  42. How does getMock() really work? •  Does Configuration class exist?

    •  Create Mock_Configuration_123abc class extends Configuration class •  Create instance of that class •  Return instance •  Create Configuration class
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  55. Stubs provide canned answers to calls made during the test

    "Mocks Aren’t Stubs" Martin Fowler

  56. Mocks are objects pre-programmed with expectations which form a specification

    of the calls they are expected to receive "Mocks Aren’t Stubs" Martin Fowler
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  69. Stubbing collections

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  72. Arrange Act Assert

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  76. It’s all about readability

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  79. What’s next?

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  82. Questions? Wojtek Zieliński @codecleaner