Perform an Action Before and After Each Test

In the previous lesson, we saw that there were clock install and uninstall actions that were done as part of the spec:

it('should return 7 for a date 7 days ago', () => {
    const clock = jasmine.clock();
    ... // test code skipped

    clock.uninstall();
});

That logic is not a part of the test. It’s also repeated verbatim for each test. We can do better.

Jasmine hooks

There are a few functions we can call and let Jasmine know that we’d like it to perform a certain action before each test or after each test. Let’s see how that might look like in the code playground below. Notice the spec/days-ago.spec.mjs file.