Best Practices for Unit Test Case Automation
Make each test orthogonal (i.e., independent) to all the others Any given behavior should be specified in one and only one test. Otherwise if you later change that behavior, you’ll have to change multiple tests Don’t make unnecessary assertions Which specific behavior are you testing? It’s counterproductive to Assert() anything that’s also asserted by another test It just increases the frequency of pointless failures without improving unit test coverage at all Have only one logical assertion per test Unit tests are a design specification of how a certain behavior should work, not a list of observations of everything the code does Test only one code unit at a time Architecture must support testing units (i.e., classes or very small groups of classes) independently, not all chained together If you can’t do this, then your architecture is limiting your work’s quality – consider using Inversion of Control Mock out all external services and state Yo