In addition to unit tests, Angular CLI also generates and configures e2e tests for your application. While unit tests focus on isolating the class-under-test, e2e tests are about integration testing. Angular CLI leverages Protractor along with WebDriver, so you can write automated acceptance tests (AAT) from the perspective of a user interacting with your application on a browser. As a rule of thumb, you should always write an order of magnitude more unit tests than AATs, because your app changes frequently and as a result, AATs are vastly more fragile and expensive to maintain compared to unit tests.
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You're reading from Angular 6 for Enterprise-Ready Web Applications
Doguhan Uluca is a Principal Fellow at Excella in Washington, D.C., where he leads strategic initiatives and delivers critical systems. He has technical expertise in usability, mobility, performance, scalability, cybersecurity, and architecture. He is the author of the Angular for Enterprise Application Development books, has spoken at over 30 conferences, and is an Angular GDE Alumni. Doguhan has delivered solutions for Silicon Valley startups, Fortune 50 companies, and the U.S. Federal Government, and he is passionate about contributing to open-source projects and teaching.
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Doguhan Uluca is a Principal Fellow at Excella in Washington, D.C., where he leads strategic initiatives and delivers critical systems. He has technical expertise in usability, mobility, performance, scalability, cybersecurity, and architecture. He is the author of the Angular for Enterprise Application Development books, has spoken at over 30 conferences, and is an Angular GDE Alumni. Doguhan has delivered solutions for Silicon Valley startups, Fortune 50 companies, and the U.S. Federal Government, and he is passionate about contributing to open-source projects and teaching.
Read more about Doguhan Uluca