Testing NextJS with React testing library and Jest

In this video I test an api route in Next JS using Jest and test the login form using React Testing Library. It is a deeper dive into some of the features of jest and how to handle mocks!

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[cajogos]

Awesome video, thanks! I come from a *unit background using assert() so still trying to get my head around these describe() and it()/test() ways of testing lol this video definitely helped me clear my mind on certain differences. Really cool you can nest test suites too!

[caincobain]

I always found it difficult to remember those testing ticks, that's very impressive. Great work

[DiegoFeder]

First time getting into this tests... Thank you!

[noherczeg]

You don't need to create a __tests__ folder. Jest also finds files plainly ending in .test.js, or .spec.js. Putting tests next to the actual code file makes it easier to locate them.

[osergiogomess]

Hey Eric, do you have any video about Jest with Redux? Wrapping dispatch and all that...?

[nickjunes]

You didn't go over how your mongoose services are some how mocked BEFORE your service calls them even though they are imported in your authenticate.js file. How are your mongoose mocks overriding the imports at that are called in your authenticate.js file? That doesn't make any sense. What magic is going on?