Introduce a shared test-utils module and global vitest setup that
guarantee tests never write to the real .fusion directory or leak temp
directories under /tmp.
Infrastructure:
- packages/core/src/__test-utils__/workspace.ts — tempWorkspace(),
useIsolatedCwd(), trackForCleanup(), assertOutsideRealFusion() with
auto-cleanup in afterEach.
- packages/core/src/__test-utils__/vitest-setup.ts — per-worker guard:
chdirs each worker into an isolated tmp dir, wraps process.chdir to
refuse the real .fusion, scopes tmp dirs under fusion-test-workers/
(skips cwd change in thread-pool workers where chdir isn't supported).
- packages/core/src/__test-utils__/vitest-teardown.ts — globalSetup
hook that wipes the shared parent even when workers are SIGKILLed.
- scripts/check-test-isolation.mjs + `test:isolated` / `test:check-
isolation` scripts for CI.
- @fusion/test-utils alias + setupFiles + globalSetup wired into core,
cli, engine, dashboard, tui vitest configs; matching tsconfig paths.
Test refactors (no behavior change):
- cli provider-settings, auth-paths, provider-auth — switch leaking
mkdtempSync calls to tempWorkspace().
- core migration, first-run, store-backward-compat — replace manual
process.chdir save/restore with useIsolatedCwd().
- tui fusion-context — replace 9 hardcoded tmp paths (collision-prone
under parallelism) with tempWorkspace().
- dashboard useTheme, FileBrowser, TaskCard — resolve source-file reads
against a PACKAGE_ROOT computed from import.meta.url instead of cwd,
so tests don't depend on the process working directory.
Verified: full suite (~15,500 tests across 8 packages + plugins) passes
and the orphan-detector reports zero leaked temp directories after a
complete run.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- Add @fusion/tui as a new private workspace package with ink and React dependencies
- Configure TypeScript with JSX (react-jsx), strict mode, and Node16 module resolution
- Add minimal src/index.tsx entry point with package exports
- Update root README.md with tui package reference
- Add pnpm-lock.yaml entries for ink, ink-text-input, and @types/react
