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Symmetrical Unit Test

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Justin Searls edited this page Aug 14, 2015 · 1 revision

A unit test is said to be "symmetrical" with its subject when:

  • It's placed in a directory that mirrors the subject and with a name that can be predicted by its filename (e.g. lib/foo.js is tested by lib/foo-test.js)
  • It is the only unit test of the public behavior of the subject
  • It does not effectively specify the behavior of the subject's dependencies

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