test: introduce `test-vitest-setup` project to handle test setup for vite tests

[BioPhoton]

Introduce test-vitest-setup project to handle test setup for vite tests

---

PR1

• Introduce project test-vitest-setup under the testing folder and add configuration. Copy the example linked below and add potential improvements.
  • adjust coverage.reportDirectory to be at project root (packages/<name>/.coverage)
  • add unit tests
  • use existing types see this comment
  • add minimal docs to the test-vitest-setup project on how to use

Example implementation:

• test-vitest-setup source
• test-vitest-setup usage

---

PR1.2

• Extend vitest.{targetName}.config.ts from test-vitest-setup configuration. (consider the changed reportDirectory may be a breaking change for the CI pipeline)
  • unit tests
  • int tests
  • e2e tests

---

PR2.x - Cleanup and cosmetic cahnges

Preconditions: #1142

Mocks folder

• Rename nx-plugin/mock to models/mocks
• Rename examples/plugins/src/lighthouse/mockto examples/plugins/src/lighthouse/mocks
• After all folders are renamed to mocks adjust inputs in nx.json
  • "!{projectRoot}/@(test|mocks|mock)/**/*"
  • "!{projectRoot}/**/?(*.)mock.[jt]s?(x)"

Mocks creation

• unify test folder setup and document it. Use the creation from static files instead of generator
  • e2e/ci-e2e/setup.ts#setupTestReop
  • e2e/ci-e2e/test-folder-setup.ts#restoreNxIgnoredFiles

Test Coverage

• improve test coverage config to exclude as much noise as possible and increase coverage
  • src/lib/index.ts - exclude files that only maintain exports e.g. index.ts (in some places index.ts files also contain actual logic. here I would suggest we discuss per case if we can refactor to have all index.ts used for barrel export only)
  • exclude other files that are not relevant for test coverage

Caching

• Move zod2md.ts under {projectRoot}/tools and make sure "!{projectRoot}/tools/**/*" is added under nx.json#namedInputs.production
• To verify: We might have a caching issue with models build.

To Verify

• remove vitest executor defaults from nx.json TBD

"@nx/vite:test": {
      "cache": true,
      "inputs": ["default", "test-vitest-inputs"],
      "options": {
        "passWithNoTests": true,
        "watch": false
      }
    },

[poltorak]

@BioPhoton PR1 and PR1.2 are covered and at the moment awaiting for your approval.

I'm happy to do next step which is PR2 but I'd need more context what is the actual goal of that

[BioPhoton]

Thx @poltorak for the headsup! Feel free to check the boxes in the issue and link PRs. I will be able to add more information to PR2 until Friday-