Hello all,
A unit test framework is essential to our tooling, and one that is able to test Vue 3 components.
I’ve compared the following libraries (design page):
Comparison matrix:
| Library | Acceptability | License | Module support | Mocking support | Typescript support | Github start |
|---|---|---|---|---|---|---|
| Vitest |
 default for Vue |
MIT |
yes |
yes |
yes |
10.4k |
| Jest |
 no stable Javascript module support, but by far the most popular test library |
MIT |
experimental |
yes |
yes |
|
| Mocha |
 no mocking support |
no |
||||
| AVA |
no mocking support |
no |
||||
| uvu |
less popular, one person project |
MIT |
yes |
yes |
yes |
|
| Jasmine |
no mocking support |
no |
2.9k |
In conclusion, Vitest is the only library matching all our criteria.
Jest is a good candidate as it is very popular, but lack a stable module support, and is not providing a default support for components test.
uvu looks ok as well but is only supported by a single developer.
In conclusion, I suggest to select Vitest as our unit testing library.
WDYT?