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What do you mean by behavior-focused testing style?

• kd5bjo 7y ago
  Presumably, testing that the API of each unit produces the desired result without consideration for how it accomplishes that internally. If it relies on some other component internally but never exposes that in the public API, it’s reasonable to consider that component as part of the unit under test and not try to mock it out.
  • falsedan 7y ago
    And if you do need a mock (for something with hard-to-undo side effects), you set it up with stub response & canned data in the test fixture, and never assert anything against it in the test. Part of the problem is that most test fake libraries support mocks (usually they even have it in the name), those mocks have complex “verify the 3rd call was function doDoAction with parameter (‘yes’, ‘really’)” and then people think that full-blown mocks are the only way to guarantee 100% correctness.