Unit testing: Jest - Angular Tour of heroes app 100% code coverage

What is unit testing ?

*Unit testing is a software testing approach that involves testing individual units or components of a software system in isolation to ensure they function correctly. *

I know that a lot of people struggle to write good unit tests. So, I decide to prepare clear example of most popular angular learning app - "Tour of heroes" with 100% code coverage.

REPOSITORY: angular-tour-of-heroes-jest-100-coverage

I hope the repository will help many people.

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