Mastering Jest: A Complete Guide to Testing

Unit Test Examples

Explore various unit test examples in Jest to understand how to test helper methods, server controllers, and React components. Learn how these tests are structured to verify code functionality effectively.

We'll cover the following...

Testing helper methods
Testing a server controller
Testing a component

1.Introduction

2.Setting Up Jest

3.Jest Matchers

4.Writing Unit Tests

5.Writing Snapshot Tests

6.Asynchronous Code

7.Mocking

8.Mocking External Libraries

Mini Project

9.Setup & Teardown

10.Test Coverage & CI/CD Pipelines

Mini Project

11.Conclusion

12.Bonus: Best Practices

13.Bonus: Resources for Continued Learning

14.Appendix

Unit Test Examples

Testing helper methods