Danny Kim
37 lines
1.6 KiB
Markdown
37 lines
1.6 KiB
Markdown
---
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description: Vitest via vp test; unit tests sit next to code as *.test.ts, regression/integration tests in tests/ via the public entry; scripts/ has no tests
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---
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Decided 2026-10-14 for all repos.
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- **Runner:** Vitest through `vp test`. Import test APIs from
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`vite-plus/test` (`describe`, `expect`, `it`).
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- **Unit tests** sit next to the code: `src/foo/bar.ts` is tested in
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`src/foo/bar.test.ts`. Vitest's default include finds them; no `test`
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config needed. Packages publish only `dist/`, so colocated tests cost nothing
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in the tarball.
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- **Regression and integration tests** live in the top-level `tests/` folder
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and use only the public entry point (an alias like `#plugin`), never
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internals. `vp test tests` runs just these.
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- **No in-source tests** (`import.meta.vitest`).
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- **`scripts/` gets no tests** (2026-10-15): it is repo tooling, not
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production code (`project-lint.ts`, `decorators.ts`, `lit-check.ts`,
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release helpers).
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- Test files follow every lint rule; no relaxed overrides for tests.
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## Migrating Deno tests
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`Deno.test` suites were converted by a codemod
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(`~/.local/share/deno-migration/src/convert.ts` on the user's machine), then
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its TODOs finished by hand. Watch for:
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- `@std/assert` → `expect` (`assertEquals` → `toStrictEqual` or `toBe`,
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`assertThrows` → `toThrow`, `assertRejects` → `rejects.toThrow`);
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- `Deno.*` file, env, and process APIs → `node:fs`, `process.env`,
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`node:child_process`;
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- `t.step` → nested `describe`/`it`;
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- sanitizer options, which Vitest doesn't have.
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A migration PR must keep every test case; a dropped case is lost coverage.
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Tests must pass locally before any push.
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