Add vitest ui package and `test:ui` command to popup the vitest UI
https://vitest.dev/guide/ui
Import the common vitest config from the workspace so each package
doesn't need to define all of it.
Added `watchExclude: []` to the common config to preven vitest from
excluding dist and node_modules folder which is required so it can auto
rerun the test on when a dependency (monorepo dep) rebuilds
Added debug config to debug the current test. As the vitest extensions
is quite unreliable this should help
Get rid of mocha and upgrade to vitest which is a more modern
alternative providing, watch, direct typescript compilation out of the
box, expect library and more.
Advantage over mocha:
- Much better cli
- watch mode
- better diff
- Better extension:
- tree organization for files too (not everything flattened)
- update in real time the test(no more need to refresh manually to
discover where are the tests)
- just a little buggy
- Compiles typescript directly
- provides more expectation apis(like jest)
Cons over mocha:
- Slower(about 2x) but that means we don't need to build the test as
part of build which would speed up that part(not as much as is lost)
Todo:
- typespec-azure migration
Progress towards providing the ref doc generation as a usable tool by
any typespec library.
Detach the generation from the website, instead each package define
where they want their doc and we generate it.
This adds a new `tspd` package and CLI tool that is meant to be used by
library authors. It will have the following functionalities
- generate docs
- generate TS signatures
- lint library?
---------
Co-authored-by: Mark Cowlishaw <markcowl@microsoft.com>