**Motivation**
Update the vitest to avoid using third party test pool.
**Description**
- Use latest vitest
- Remove custom process pool which we developed to run our tests in Bun
runtime
- Migrate test configs to latest version
- Update types
- Switch to playwright from webdriverio for browser tests performance,
which was due for long.
**Steps to test or reproduce**
- Run all tests
**Motivation**
Make our codebase compatible with Bun runtime
**Description**
- Configure Vitest to work along Bun
- Add CI workflow to test Unit tests for Bun
**Steps to test or reproduce**
Run all tests
Follow up to https://github.com/ChainSafe/lodestar/pull/7610 with a few
restructuring suggestions, see comments below for detailed changes,
revives constants tests we are no longer running in CI and makes each
package executable separately again, ie. `cd packages/<package-name>`
into `yarn test:unit` works for all packages again.
One major change is that unit tests default should be written with
`mainnet` preset in mind as I noticed that makes a lot more sense for a
bunch of existing tests, eg. we have tests that depend on external
fixtures, like api spec tests for events and those are not compatible
with `minimal` preset. Also there doesn't seem to be much downside in
most cases for unit tests to use `mainnet` preset as it does not run
through all the epoch, like for example a e2e or sim test does. So
overall, it allows us to use mainnet fixtures / more "real world" data
which seems better with little to no downside.
Time comparison running unit tests on `unstable` vs. this branch
**unstable**
**nflaig/restructure-tests**
There is just a difference of 2 seconds (might be a fluke) in a 6 minute
run, this seems acceptable to me considering the benefits of using
`mainnet` preset noted above.
**Motivation**
Vitest workspaces is feature to mimic the package manager workspaces for
the tests only.
It provides following benefits:
1. Minimize the need the bunch of config files at every package root
2. Consolidate vitest configuration in project groups
3. Use consistent test configuration for all projects in the monorepo
4. Providing consistent test environment for all packages
5. Speed up visual interaction with tests in the IDEs (e.g. Visual
Studio Code)
**Description**
- Remove all unnecessary config files
- Update package json scripts to use `--project` flag
Closes#7603
Now we have following test directories.
| Directory | Description | CurrentPreset | Old Preset |
|---|---|---|---|
| test/unit | Unit tests | minimal | Default export from `params`
package |
| test/unit-mainnet | Unit tests | mainnet | mainnet |
| test/e2e | End-to-End Tests | minimal | Default export from `params`
package |
| test/e2e-mainnet | End-to-End Tests | mainnet | Never existed before,
mixed up pattern in different packages |
| test/spec | Spec tests | minimal | Default export from `params`
package, but common perception among team was that it's running with
`minimal` |
| test/spec-mainnet` | Spec tests | mainnet | Never existed as
directory, but mixed up among packages |
| test/browser | Symlink to `unit` for packages which supports browsers
| minimal | Default export from `params` package |
| test/types | Types test | minimal | Default export from `params`
package |
**Steps to test or reproduce**
Run all tests
