Angular 8 Unit testing Chapter4 - Arrange-Act-Assert(AAA) Pattern

• AAA is common standard for writing the unit test cases.
• Arrange: It means Arrange everything to setup the unit test case, like creating the objects, initializing/mocking data etc..
• Act: Act on your unit test case, meaning execute necessary functionality/methods that needs to be unit tested.
• Assert: This part verifies the functionality/method that we are unit testing is giving the result as per expectation.