Setting Up End-to-End Testing for Authentication

Our previous lesson focused on unit testing for AuthService. We’ll delve into end-to-end (E2E) testing for our AuthController. Unlike unit testing, which targets specific parts of our application, E2E testing examines the entire system workflow from top to bottom. In this lesson, we’ll thoroughly test the authentication process in our virtual library to ensure it functions as intended.

Default test in app.e2e-spec.ts

Let’s analyze the app.e2e-spec.ts file in the test folder provided by NestJS.