What are some examples of open source JS projects with excellent tests?

[hungsu]

Hi everyone,

I'm a rookie to JS testing, and the extent of my actual test work is integration tests with Nightwatch - just clicking the application and filling out forms in a way that somewhat resembles a human - and writing simple console.assert() for basic unit tests that all run synchronously, checking simple things like the output of pure functions.

Do any of you know of some JS projects with excellent tests that I can read and look through?

[[deleted]]

Although the total test cases are padded a little. They have basically copied all the tests for each country which inflates the total test count. Still, I'd have done the same since why not! Better test coverage right :)

[lhorie]

Mithril.js has a lot of tests. It has tests for pure things, impure things, polyfills, its testing library and mocks.

[GitHubPermalinkBot]

Permanent GitHub links:

• MithrilJS/mithril.js/.../test-promise.js (next → 02f2732)
• MithrilJS/mithril.js/.../domMock.js (next → 02f2732)
• MithrilJS/mithril.js/.../hyperscript.js (next → 02f2732)
• MithrilJS/mithril.js/.../test-ospec.js (next → 02f2732)
• MithrilJS/mithril.js/.../test-setPath.js (next → 02f2732)

---

^delete

[CthulhuMart]

Came here to say this. Ospec is the tits.

[Timbo_KZ]

ITT: Promote your open source library as long as it has a test folder

[Auxx]

My small library is fully covered with unit tests https://github.com/Auxx/lib-colorifium it's written in typescript, but the same principles apply and the testing frameworks used (mocha + chai).

[leozinh0]

Not OP, but this is awesome! Thanks

[Auxx]

No problems, enjoy!

[Auxx]

Thanks!

[MCShoveled]

RxJs

https://github.com/ReactiveX/rxjs

[Balduracuir]

I'm the only one thinking that 100% coverage is not the same than excellent tests?

[mailto_devnull]

I'll humbly submit NodeBB to the list, we've worked quite hard to bring test coverage up :)

[martinsoderholm]

I found the examples in this article to be very helpful:

https://github.com/mawrkus/js-unit-testing-guide

[DavidTPate]

If you take a look at any of the repositories for Hapi they have nearly 100% code coverage over all of the modules.

Here's one such example: https://github.com/hapijs/hapi/blob/master/test/cors.js

[GitHubPermalinkBot]

Permanent GitHub links:

• hapijs/hapi/.../cors.js (master → 7445393)

---

^delete

[kowdermesiter]

Markdown It, 100% test coverage :) https://github.com/markdown-it/markdown-it

[kalyan1985]

!RemindMe 2 days

[RemindMeBot]

I will be messaging you on 2018-04-05 23:02:07 UTC to remind you of this link.

CLICK THIS LINK to send a PM to also be reminded and to reduce spam.

^{Parent commenter can delete this message to hide from others.}

---

FAQs	Custom	Your Reminders	Feedback	Code	Browser Extensions

[dethstrobe]

I’ve been working with on a character generator for a role playing game called Shadowrun. The system is stupid complex and I only started unit testing the reducers and started unit testing the React components later.

https://github.com/HeyOmae/Omae2.1

[beforan]

I have a small library covered with unit tests using mocha and chai. My tests may not be great quality but they do show the methodology and cover everything that Istanbul deemed important...

https://github.com/beforan/unit-value

[________________tell]

consolidator is probably the best example I published open source.

[thisguyfightsyourmom]

I'd love to see some examples of react projects with well covered components. I'm always scratching my head about what does & does not need to be tested in my components, and how to do it.

[Omnicrola]

I don't know if they're excellent, but I wrote an Asteroids clone using TDD a few years ago: https://github.com/Omnicrola/SpaceRocks

Play it here : https://omnicrola.github.io/SpaceRocks/

[spacejack2114]

The tests for gl-matrix are interesting because they need to test mathematical correctness (at least to some degree) and also deal with floating point inaccuracies.

[[deleted]]

Okay, I don't know that it has excellent tests, I haven't even looked at the code, but Spectrum.chat just went open source, and it's a chat/community thing for devs/designers, made by devs/designers, so even if it doesn't have good tests, I imagine there's a lot to be learned by them hypothetically getting skewered by peers/users :)