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JavaScript Unit Testing

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Making Tests Easier with Fixtures: Setup

7:41 with Guil Hernandez and Joseph Fraley

Fixtures are the part of a test suite that set the stage for our specs. In this video, we’ll write code to run before every spec and also before each test spec that makes testing simpler.

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Video review

  • Mocha provides useful functions to help us set up conditions for our tests, like creating test objects and simulating the conditions inside our app
  • The "setup" phase is the part of our tests where we set up conditions for testing
  • Mocha splits the setup process into two blocks: the stuff we set up before the entire series of tests, and the stuff we set up before each individual test
  • Mocha provides the hooks before(), after(), beforeEach(), and afterEach() to set up preconditions and clean up after your tests
  • beforeEach() works like before, only it will run the function before each spec, instead of just once at the start of the suite

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    we're still just writing JavaScript. 0:00
    You'll want to follow the same best practices you use when writing 0:01
    any JavaScript program. 0:04
    We should keep our test dry and tidy. 0:06
    In this stage, we'll explore some handy ways to avoid repeating ourselves. 0:08
    We'll also expand our tests to build our confidence and 0:13
    the code we've written so far. 0:16
    So far, I've been writing the dependencies for every test within each spec. 0:18
    For example, in our check for 0:23
    ship test suite, I wrote a new player object for every test. 0:24
    So the first test has a player, and the second test has the same exact player. 0:28

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