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Testing — GitNexus

How we structure tests and which commands to run locally and in CI.

Packages

Package Path Runner Notes
CLI + MCP core gitnexus/ Vitest Primary test surface in CI
Web UI gitnexus-web/ Vitest Unit/component tests
Web UI E2E gitnexus-web/ Playwright Run when changing UI flows

Commands (local)

From repository root, unless noted:

gitnexus (CLI / library)

cd gitnexus
npm install
npm run build
npm test                    # unit: vitest run test/unit
npm run test:integration    # integration suite
npm run test:all
npm run test:coverage
npx tsc --noEmit            # typecheck (matches CI)

gitnexus-web

cd gitnexus-web
npm install
npm test                    # unit tests (vitest)
npx tsc -b --noEmit         # typecheck (matches CI)
npm run test:coverage
npm run test:e2e            # Playwright (requires gitnexus serve + npm run dev)

Pre-commit hook

A husky pre-commit hook (.husky/pre-commit) runs automatically on every git commit:

  • gitnexus-web/ files staged → tsc -b --noEmit + vitest run
  • gitnexus/ files staged → tsc --noEmit + vitest run --project default

Skip with git commit --no-verify (use sparingly).

Test categories

  • Unit — Pure logic, parsers, graph/query helpers; fast; no network.
  • Integration — Real combinations (filesystem, MCP wiring, larger pipelines) as already organized under gitnexus/test/integration.
  • Eval-style / golden sets — For agent- or classification-style behavior, keep labeled inputs and expected outputs (JSON or table-driven tests) and run them in CI when relevant.
  • E2E (web) — Critical user paths only; prefer data-testid attributes for stable selectors. Tests run against real backend (gitnexus serve) and Vite dev server.

Performance metrics (targets)

Set targets to match team expectations, then tune to this repo’s CI reality:

Metric Target (initial) Notes
Unit coverage Align with CI CI runs Vitest with coverage in gitnexus
Unit wall time Fast PR feedback Use vitest run test/unit for tight loop
Integration duration < few minutes Guard heavy tests with env flags if needed

Regression testing

Re-run the full relevant suite when:

  • Prompt or agent-behavior documentation changes (if tests encode behavior)
  • Model or embedding-related code paths change
  • Graph schema, query contracts, or MCP tool shapes change
  • Dependencies with parsing or runtime impact upgrade

CI integration

GitHub Actions (.github/workflows/ci.yml) orchestrate:

  • ci-quality.yml — tsc --noEmit for gitnexus/ + tsc -b --noEmit for gitnexus-web/
  • ci-tests.yml — vitest run with coverage (ubuntu) + cross-platform (macOS, Windows)
  • ci-e2e.yml — Playwright E2E tests, gated on gitnexus-web/** changes

Local checks before pushing:

cd gitnexus && npx tsc --noEmit && npm test
cd ../gitnexus-web && npx tsc -b --noEmit && npm test

Or rely on the pre-commit hook which runs these automatically for staged files.

User acceptance / beta (optional)

For staged releases or UI betas: deploy to a staging environment, collect structured feedback, watch errors and latency, then iterate before a wider release.