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Testing Asynchronous Services

Testing Asynchronous Services

Learn how to test asynchronous services using the waitForAsync and fakeAsync artifacts.

We'll cover the following...

Angular testing utilities

Angular testing utilities provide two artifacts to tackle asynchronous testing scenarios:

  • waitForAsync: An asynchronous approach to unit test asynchronous services. It is combined with the whenStable method of ComponentFixture.

  • fakeAsync: A synchronous approach to unit test asynchronous services. It is used in combination with the tick function.

Both approaches provide roughly the same functionality; they only differ ...