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meshcore-analyzer/docs/frontend-testing.md
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Alex B 893773338e chore(tests): move root test-*.js into tests/unit and tests/e2e (#2036)
Moves 290 root test-*.js into tests/unit (177, listed in test-all.sh) and tests/e2e (113, classified in scripts/non-unit-tests.json), per #1981 and PR-D of #1385. Root goes from 348 entries to 48. test-all.sh and test-fixtures/ stay put. The inventory guard now fails if a test reappears in the root or sits in the wrong folder.

Verified independently of the diff: the invoked sets are unchanged (test-all.sh 177 before and after, deploy.yml 96 before and after, both identical as sets), and a full local run of test-all.sh on master and on the branch produced 4702 output lines each whose only differences are absolute paths, stack-trace line numbers shifted by the REPO_ROOT line, the inventory wording and two perf ratios. The guard was mutation-checked: a test back in the root, a unit suite in tests/e2e, and a suite dropped from test-all.sh each make it exit 1. CI run 35246304316 ran 97 suites from tests/e2e and is green.

Follow-up 9335c51d finished the instruction files: no bare root test command is left in AGENTS.md, the squad charters, .github or docs, and every tests/ path they name resolves.

Merged by the interim maintainer without a second human reviewer: CI and the local runs above are the independent checks.

Known and deliberately out of scope: 18 of the 113 files in tests/e2e are invoked by no runner at all, and one of them cannot run anywhere because it requires jsdom, which is not a declared dependency. Tracked separately.
2026-09-17 19:06:07 +02:00

2.1 KiB

Frontend tests

test-all.sh is the authoritative list of standalone frontend suites. Both npm run test:unit and the CI Run JS unit tests step invoke it. npm test and npm run test:coverage wrap the same runner with coverage reporting.

The inventory currently covers 280 root suites: 167 standalone suites in the runner and 113 suites classified separately by their prerequisites.

Run npm run test:unit from a checkout with Node.js, a POSIX shell, Bash, and Python 3 available. The XSS gate's fixture test uses Bash and Python. On Windows, use Git Bash and ensure python3 resolves to Python 3 rather than a Microsoft Store alias; set PYTHONUTF8=1 for the gate's Unicode output. No server or browser is started by this runner.

Tests live in tests/unit/ (standalone Node, run by test-all.sh) and tests/e2e/ (needs a browser, a server or extra tooling). They run from the repo root, and refer to it as REPO_ROOT. When adding a test-*.js file:

  1. If it runs standalone, put it in tests/unit/ and add its node tests/unit/test-name.js command to test-all.sh.
  2. Otherwise put it in tests/e2e/ and add it to scripts/non-unit-tests.json, with a prerequisite or reason explaining why it belongs outside the unit runner. Browser suites still need explicit selection in the E2E workflow to become CI gates.
  3. Run node tests/unit/test-test-inventory.js. The guard rejects test-*.js files in the repo root, unclassified files, duplicate assignments, removed files left in a list, undocumented groups, and local/CI entry points that bypass the unit runner.

The separate inventory distinguishes plain Node Playwright scripts, suites requiring the @playwright/test runner, and the jsdom integration suite. Those last two dependencies are not currently declared in package.json; classification records that limitation rather than installing them implicitly. The existing E2E workflow retains its browser installation, local fixture server, coverage collection, and repeat checks. Only use local servers for browser tests; inventory membership alone does not mean a suite runs in CI.