Summary

In this chapter we have explored the importance of adding automated tests to our projects and what kind of benefits it brings.

Also, we got started with the Jest testing framework, and we learned how to configure it in order to use it seamlessly with TypeScript and Nest.js

Lastly, we reviewed how to use the testing utilities that Nest.js provides for us, and learned how to write tests, both unit tests as well as end-to-end ones, and how to check the percentage of the code our tests are covering.

In the next and last chapter we cover server-side rendering with Angular Universal.