When is a Test not a Unit-test?

See Michael Feathers’ definition

A test is not a unit test if:

  • It talks to the database
  • It communicates across the network
  • It touches the file system
  • It can’t run at the same time as any of your other unit tests
  • You have to do special things to your environment (such as editing
    config files) to run it.

Related Contents:

  1. What is Mocking?
  2. What does “DAMP not DRY” mean when talking about unit tests?
  3. Is Unit Testing worth the effort? [closed]
  4. What’s the difference between faking, mocking, and stubbing?
  5. What is the difference between integration and unit tests?
  6. How deep are your unit tests?
  7. What Makes a Good Unit Test? [closed]
  8. What’s the difference between unit tests and integration tests? [duplicate]
  9. What is the difference between unit tests and functional tests?
  10. How to run only one unit test class using Gradle
  11. What is unit testing? [closed]
  12. What is the purpose of mock objects?
  13. Should one test internal implementation, or only test public behaviour?
  14. What is unit testing and how do you do it? [duplicate]
  15. Unit test naming best practices [closed]
  16. How to start working with GTest and CMake
  17. Should Private/Protected methods be under unit test? [closed]
  18. To test a custom validation angularjs directive
  19. Should unit tests be written for getter and setters?
  20. What are the differences between unit tests, integration tests, smoke tests, and regression tests? [closed]
  21. How do I unit-test saving file to the disk?
  22. How to RowTest with MSTest?
  23. Unit testing with singletons
  24. Visual Studio 2015 or 2017 does not discover unit tests
  25. Unit Tests not discovered in Visual Studio 2017
  26. How to terminate a program when it crashes? (which should just fail a unit test instead of getting stuck forever)
  27. Why is the xUnit Runner not finding my tests
  28. How does mockito when() invocation work?
  29. Any suggestions for testing extjs code in a browser, preferably with selenium?
  30. How to Unit Test React-Redux Connected Components?
  31. Unit testing Anti-patterns catalogue
  32. Mocking vs. Spying in mocking frameworks
  33. How to test my servlet using JUnit
  34. Mocking $modal in AngularJS unit tests
  35. Is it bad practice to have more than one assertion in a unit test? [closed]
  36. Does Selenium support headless browser testing?
  37. Configuring IntelliJ IDEA for unit testing with JUnit
  38. How to test Spring Data repositories?
  39. What is the best way to unit-test SLF4J log messages?
  40. Junit5 mock a static method
  41. How to unit test a Go Gin handler function?
  42. Run JUnit tests with SBT
  43. Proper package naming for testing with the Go language
  44. How can I unit test a GUI?
  45. Is duplicated code more tolerable in unit tests?
  46. Any way to test EventEmitter in Angular2?
  47. Example invalid utf8 string?
  48. How to unit test a component that depends on parameters from ActivatedRoute?
  49. Is there an easy way to stub out time.Now() globally during test?
  50. Why should unit tests test only one thing?

Leave a Comment