Angular unit testing using Jest

This video gives you the in depth knowledge of writing unit test cases for Angular applications using Jest.

[anacostaeduardo]

INTRO

0:00 project introduction
4:10 file structure
8:23 jest configurations



WRITING TESTS FOR SPECIFIC FILES
9:25 app.component.ts
12:02 about.component.ts (static component + html testing)
14:32 login.component.ts (angular lifecycle + reactive form)
19:40 auth.service.ts (service testing + observable testing)
24:54 authguard.service.ts
28:23 expense.service.ts (api call and response)
38:25 addexpense.component.ts (route params + reactive form)
47:09 report.component.ts
58:04 viewexpense.component.ts
1:02:43 user.service.ts
1:03:43 logout.component.ts
1:05:09 password.component.ts
1:09:56 profile.component.ts + register.component.ts

WRAPPING UP
1:10:08 checking code coverage

[michaelt]

Fantastic video. I'm really glad you made this. It helped me understand testing angular with jest. 🇬🇧

[oscarsangularchannel]

Thanks for this video Akhilesh, it's a nice hands on testing with Jest that shows how easy and powerful Jest is, wonder if there's a more opinionated way of doing Angular Testing with Jest. Great Video!! hope I can see more !

[kevorkyerevanian]

Thanks Akhilesh. Great video. Very useful! I really appreciate your effort to create it.

[GuillermoArellano]

Why is it that a lot of the mock objects and services had type of "any?" I thought we wanted to type them as much as possible, even in the test.

[SayantanDeyIshanz]

If you writing logic inside your spec, like setting and clearing the localStorage and then checking the outcome, how does it actually test the functionality?

[MahiXI]

you remind me of my maths teacher who just reading line by line without knowing the logic .. LOL :D and not responding to the questions only giving likes to people who liked it :D

[meliecool]

I'm searching for something this clear since 2 two days... Honestly a huge thanks 😵

[ernestoscaringicelestino]

Thanks for this video Akhilesh, really helpful!

[gopibollisetti]

Great explanation . Good for new comers 👍👌

[vijayg]

is there any example on material table test with jest

[d.santoshkumar]

Nice Tutorial Akhilesh, In our project we are using Jest with Angular and we are unable to pass the test case where moment function is used. Can you help me on this.

[devvio]

Not explained reasons of why something used and when to use

[rameshmahajan]

Really useful Test case !!! but can we have more complex test case then this

[abhijeetdey]

You didn't explain a single line of code in this video! You are just copy pasting code and reading them as it is. This is why we need dislike counter on YouTube.

[BlueBoysTune]

Why r u even copy pasting the code.. Why not have the whole code written and just explain and jog over the lines.. Pathetic way of teaching. So fast not understanding anything

[pamuletipullagura]

Very nice tutorial. I have a small question. Could you show me a way to create the Spy on BehaviourSubject which is mentioned in a service file?

Actually I am using this service in a component. When I am actually calling I am getting "Typescript Error : can not read property getValue of undefined".

Any suggestions please?

[denisbielishev]

There are a lot of trash. One example: fixture.userObj = authServiceMock.currentUser; What do you test? )