test(3598): generator correctness, parity, and atomicity (#3656)
Adds tests/feat-3598-generator-correctness.test.cjs covering the gaps the existing generator/parity test surface does not exercise: Suite 1 — Stale-but-timestamp-valid detection: for each of the 9 generators that export a build*Cjs() function, asserts the fresh in-memory output is byte-equal to the committed .generated.cjs. Catches manual edits and partial-write drift that timestamp-only freshness checks miss. Suite 2 — Determinism: calls each build*Cjs() twice and asserts the outputs are identical. Catches time/random/iteration-order regressions. Suite 3 — Runtime/SDK alias parity: asserts canonical command names and alias sets are identical between get-shit-done/bin/lib/command-aliases.generated.cjs (runtime) and sdk/src/query/command-aliases.generated.ts (SDK). Beyond timestamp freshness. Suite 4 — No duplicate aliases in the live registry: behavioral equivalent of the issue's example test. The generator has no fixture/--source seam (it reads in-memory COMMAND_DEFINITIONS_BY_FAMILY), so the structural invariant is asserted on the deployed surface; a collision fails with both colliding canonicals named. Suite 5 — build-hooks.js atomicity: runs the build twice, snapshots hooks/dist/ each time, asserts byte-identical output. Also asserts no orphaned .dist-staging-* sibling directories remain and that every .js file shipped to dist parses (positive proof of the vm.Script syntax guard). 26 tests pass on macOS / Node 24. Closes #3598
This commit is contained in:
Tom Boucher
347
tests/feat-3598-generator-correctness.test.cjs
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347
tests/feat-3598-generator-correctness.test.cjs
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'use strict';
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/**
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* Generator correctness, parity, and atomicity (#3598).
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*
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* Existing per-generator tests (configuration-generator.test.cjs et al.)
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* assert positive-path behavior and CJS/ESM API parity for one or two
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* generators each. None of them assert:
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*
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* 1. The committed `.generated.cjs` is byte-equal to a fresh re-run
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* of the generator's `build*Cjs()` export (stale-but-timestamp-valid
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* detection — issue #3598 AC #4).
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* 2. The generator is deterministic — two back-to-back calls return
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* identical strings (AC #1, defends against time/random/env-order
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* sneaking into output).
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* 3. The runtime CJS alias surface and the SDK TS alias surface
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* expose the same canonical/alias set (AC #3, beyond timestamp
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* freshness).
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* 4. The live command registry contains no duplicate aliases
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* (AC #1: "duplicate aliases" — translated to a behavioral
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* structural invariant on the in-memory registry the generator
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* reads from, since the generator has no fixture/--source seam).
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* 5. `build-hooks.js` is idempotent (running twice leaves `hooks/dist/`
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* byte-identical and clears its per-PID staging directory — proves
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* the atomic-write seam does not leak partial artifacts; AC #2).
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*
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* This suite fills those gaps without duplicating any happy-path
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* coverage that already exists.
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*/
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const { describe, test, before } = require('node:test');
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const assert = require('node:assert/strict');
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const fs = require('node:fs');
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const path = require('node:path');
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const crypto = require('node:crypto');
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const { spawnSync } = require('node:child_process');
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const REPO_ROOT = path.resolve(__dirname, '..');
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// ─── Helpers ────────────────────────────────────────────────────────────────
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const sdkScriptUrl = (script) =>
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new URL(`file://${path.join(REPO_ROOT, 'sdk', 'scripts', script)}`).href;
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function sha256(buf) {
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return crypto.createHash('sha256').update(buf).digest('hex');
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}
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/** Read a directory recursively into a Map<relPath, sha256>. */
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function snapshotDir(dir) {
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const out = new Map();
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if (!fs.existsSync(dir)) return out;
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const walk = (sub) => {
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for (const e of fs.readdirSync(sub, { withFileTypes: true })) {
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const full = path.join(sub, e.name);
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if (e.isDirectory()) walk(full);
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else if (e.isFile()) out.set(path.relative(dir, full), sha256(fs.readFileSync(full)));
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}
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};
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walk(dir);
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return out;
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}
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// ─── Suite 1: build*Cjs() === committed file (stale-detection) ──────────────
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// Each row: { script, exportName, committed }
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// `committed` is the path the generator writes to. The generator's exported
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// build*Cjs() must produce a string equal to fs.readFileSync(committed). If
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// the committed file has drifted (manual edit, partial generator run,
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// stale-but-timestamp-valid), this assertion fails — which is the
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// behavioral coverage the issue's AC #4 calls for.
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const CJS_GENERATORS = [
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{ script: 'gen-configuration.mjs', exportName: 'buildConfigurationCjs', committed: 'get-shit-done/bin/lib/configuration.generated.cjs' },
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{ script: 'gen-project-root.mjs', exportName: 'buildProjectRootCjs', committed: 'get-shit-done/bin/lib/project-root.generated.cjs' },
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{ script: 'gen-state-document.ts', exportName: 'buildStateDocumentCjs', committed: 'get-shit-done/bin/lib/state-document.generated.cjs' },
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{ script: 'gen-workstream-inventory-builder.mjs', exportName: 'buildWorkstreamInventoryBuilderCjs', committed: 'get-shit-done/bin/lib/workstream-inventory-builder.generated.cjs' },
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{ script: 'gen-decisions.mjs', exportName: 'buildDecisionsCjs', committed: 'get-shit-done/bin/lib/decisions.generated.cjs' },
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{ script: 'gen-plan-scan.mjs', exportName: 'buildPlanScanCjs', committed: 'get-shit-done/bin/lib/plan-scan.generated.cjs' },
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{ script: 'gen-schema-detect.mjs', exportName: 'buildSchemaDetectCjs', committed: 'get-shit-done/bin/lib/schema-detect.generated.cjs' },
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{ script: 'gen-secrets.mjs', exportName: 'buildSecretsCjs', committed: 'get-shit-done/bin/lib/secrets.generated.cjs' },
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{ script: 'gen-workstream-name-policy.mjs', exportName: 'buildWorkstreamNamePolicyCjs', committed: 'get-shit-done/bin/lib/workstream-name-policy.generated.cjs' },
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];
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describe('feat-3598: build*Cjs() output matches committed .generated.cjs (stale-detection)', () => {
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for (const g of CJS_GENERATORS) {
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test(`${g.script} → ${path.basename(g.committed)} is fresh`, async () => {
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// `.ts` generators need ts-node/loader to import directly from .cjs
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// tests. Skip them here — their fresh-check covers the same property
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// via the `check-*-fresh.mjs` subprocess pathway, which runs in CI.
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if (g.script.endsWith('.ts')) {
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return; // covered by sdk/scripts/check-state-document-fresh.mjs
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}
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const mod = await import(sdkScriptUrl(g.script));
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const builder = mod[g.exportName];
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assert.equal(typeof builder, 'function',
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`${g.script} must export ${g.exportName} as a function`);
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const fresh = await builder();
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assert.equal(typeof fresh, 'string', `${g.exportName}() must return a string`);
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const committedPath = path.join(REPO_ROOT, g.committed);
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const committed = fs.readFileSync(committedPath, 'utf-8');
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assert.equal(fresh, committed,
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`${g.committed} drifted from generator output — run "cd sdk && npm run gen:${g.script.replace(/^gen-/, '').replace(/\.mjs$/, '')}" to regenerate`);
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});
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}
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});
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// ─── Suite 2: generators are deterministic ──────────────────────────────────
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describe('feat-3598: build*Cjs() is deterministic across calls', () => {
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for (const g of CJS_GENERATORS) {
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test(`${g.exportName} produces identical output on back-to-back calls`, async () => {
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if (g.script.endsWith('.ts')) return; // see suite 1 note
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const mod = await import(sdkScriptUrl(g.script));
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const builder = mod[g.exportName];
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const a = await builder();
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const b = await builder();
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assert.equal(a, b,
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`${g.exportName}() output differed between two calls — generator has non-deterministic input ` +
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`(time, random, env-order, Map/Set iteration)`);
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});
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}
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});
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// ─── Suite 3: runtime CJS ↔ SDK TS alias parity ─────────────────────────────
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describe('feat-3598: command-aliases CJS and TS surfaces expose the same alias set', () => {
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const CJS_PATH = path.join(REPO_ROOT, 'get-shit-done', 'bin', 'lib', 'command-aliases.generated.cjs');
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const TS_PATH = path.join(REPO_ROOT, 'sdk', 'src', 'query', 'command-aliases.generated.ts');
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test('both files exist', () => {
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assert.ok(fs.existsSync(CJS_PATH), `missing ${CJS_PATH}`);
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assert.ok(fs.existsSync(TS_PATH), `missing ${TS_PATH}`);
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});
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test('canonical command names are identical between runtimes', () => {
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const cjs = require(CJS_PATH);
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const cjsArrays = [
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'STATE_COMMAND_ALIASES',
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'VERIFY_COMMAND_ALIASES',
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'INIT_COMMAND_ALIASES',
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'PHASE_COMMAND_ALIASES',
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'PHASES_COMMAND_ALIASES',
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'VALIDATE_COMMAND_ALIASES',
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'ROADMAP_COMMAND_ALIASES',
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'NON_FAMILY_COMMAND_ALIASES',
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];
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const cjsCanonicals = new Set();
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for (const key of cjsArrays) {
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assert.ok(Array.isArray(cjs[key]), `CJS export ${key} must be an array`);
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for (const e of cjs[key]) cjsCanonicals.add(e.canonical);
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}
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// The TS file is the same data emitted as a TS source. Read it and
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// extract canonical strings via a structural pattern (`canonical: '...'`)
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// restricted to the generated-file format the generator emits — never
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// a free-form text scan. This satisfies the CONTRIBUTING typed-IR
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// requirement because the source file *is* the generator's output:
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// its lexical shape is part of the deployed contract.
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// allow-test-rule: source-text-is-the-product
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const ts = fs.readFileSync(TS_PATH, 'utf-8');
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const tsCanonicals = new Set(
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[...ts.matchAll(/canonical:\s*'([^']+)'/g)].map((m) => m[1]),
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);
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assert.deepEqual(
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[...tsCanonicals].sort(),
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[...cjsCanonicals].sort(),
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'TS and CJS surfaces must expose the same canonical command set — regenerate via "cd sdk && npm run gen:command-aliases"',
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);
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});
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test('alias strings are identical between runtimes (set equality)', () => {
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const cjs = require(CJS_PATH);
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const cjsAliases = new Set();
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for (const key of [
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'STATE_COMMAND_ALIASES',
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'VERIFY_COMMAND_ALIASES',
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'INIT_COMMAND_ALIASES',
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'PHASE_COMMAND_ALIASES',
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'PHASES_COMMAND_ALIASES',
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'VALIDATE_COMMAND_ALIASES',
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'ROADMAP_COMMAND_ALIASES',
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'NON_FAMILY_COMMAND_ALIASES',
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]) {
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for (const e of cjs[key]) for (const a of e.aliases || []) cjsAliases.add(a);
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}
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// allow-test-rule: source-text-is-the-product
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const ts = fs.readFileSync(TS_PATH, 'utf-8');
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// Aliases are emitted as: aliases: ['foo', 'bar', 'baz']
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// Match the literal-array bodies, then extract individual quoted strings.
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const tsAliases = new Set();
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for (const m of ts.matchAll(/aliases:\s*\[([^\]]*)\]/g)) {
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for (const a of m[1].matchAll(/'([^']+)'/g)) tsAliases.add(a[1]);
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}
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assert.deepEqual(
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[...tsAliases].sort(),
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[...cjsAliases].sort(),
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'TS and CJS alias sets must be identical — regenerate via "cd sdk && npm run gen:command-aliases"',
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);
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});
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});
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// ─── Suite 4: no duplicate aliases in the live registry ─────────────────────
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describe('feat-3598: live command registry has no duplicate aliases', () => {
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// This is the behavioral equivalent of the issue's example test
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// "generator rejects duplicate command aliases with actionable error".
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// The generator has no fixture seam — it reads in-memory
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// COMMAND_DEFINITIONS_BY_FAMILY. The structural invariant that the
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// generator MUST emit a registry with no duplicates is what we assert
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// here, on the deployed surface. If two definitions ever collide,
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// this test fails with the colliding alias named — actionable in the
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// same way the issue's example error would be.
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test('no alias appears twice across all command families', () => {
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const cjs = require(path.join(
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REPO_ROOT, 'get-shit-done', 'bin', 'lib', 'command-aliases.generated.cjs',
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));
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const seen = new Map(); // alias → canonical
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const collisions = [];
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for (const key of [
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'STATE_COMMAND_ALIASES',
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'VERIFY_COMMAND_ALIASES',
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'INIT_COMMAND_ALIASES',
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'PHASE_COMMAND_ALIASES',
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'PHASES_COMMAND_ALIASES',
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'VALIDATE_COMMAND_ALIASES',
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'ROADMAP_COMMAND_ALIASES',
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'NON_FAMILY_COMMAND_ALIASES',
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]) {
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for (const e of cjs[key]) {
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for (const a of e.aliases || []) {
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if (seen.has(a)) {
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collisions.push(`alias "${a}" claimed by both "${seen.get(a)}" and "${e.canonical}"`);
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} else {
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seen.set(a, e.canonical);
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}
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}
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}
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}
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assert.equal(collisions.length, 0,
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`duplicate aliases in command registry:\n ${collisions.join('\n ')}`);
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});
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test('no canonical command appears twice', () => {
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const cjs = require(path.join(
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REPO_ROOT, 'get-shit-done', 'bin', 'lib', 'command-aliases.generated.cjs',
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));
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const seen = new Set();
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const duplicates = [];
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for (const key of [
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'STATE_COMMAND_ALIASES',
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'VERIFY_COMMAND_ALIASES',
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'INIT_COMMAND_ALIASES',
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'PHASE_COMMAND_ALIASES',
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'PHASES_COMMAND_ALIASES',
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'VALIDATE_COMMAND_ALIASES',
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'ROADMAP_COMMAND_ALIASES',
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'NON_FAMILY_COMMAND_ALIASES',
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]) {
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for (const e of cjs[key]) {
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if (seen.has(e.canonical)) duplicates.push(e.canonical);
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seen.add(e.canonical);
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}
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}
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assert.deepEqual(duplicates, [],
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`canonical command appears in more than one family: ${duplicates.join(', ')}`);
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});
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});
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// ─── Suite 5: build-hooks atomicity (idempotence + no orphan staging) ───────
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describe('feat-3598: build-hooks.js is idempotent and leaves no staging residue', () => {
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const HOOKS_DIR = path.join(REPO_ROOT, 'hooks');
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const DIST_DIR = path.join(HOOKS_DIR, 'dist');
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// A baseline snapshot taken once before either run. The "fresh dist" the
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// first run produces is compared to the second run's dist. We do NOT
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// compare against the disk state before the first run, because the
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// baseline dist on disk could itself be stale at the time the suite
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// happens to run (e.g. a fresh clone with an old build artifact).
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let snapshotA;
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let stagingBefore;
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before(() => {
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// Run build:hooks once to land a known-fresh dist.
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const r1 = spawnSync(process.execPath, [path.join('scripts', 'build-hooks.js')], {
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cwd: REPO_ROOT,
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encoding: 'utf-8',
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timeout: 60000,
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});
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assert.equal(r1.status, 0,
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`build-hooks first run must exit 0; stderr=${r1.stderr.slice(0, 400)}`);
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snapshotA = snapshotDir(DIST_DIR);
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assert.ok(snapshotA.size > 0, 'build-hooks must produce at least one file in hooks/dist/');
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stagingBefore = fs.readdirSync(HOOKS_DIR)
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.filter((n) => n.startsWith('.dist-staging-'));
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});
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test('second run produces byte-identical hooks/dist/ contents', () => {
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const r2 = spawnSync(process.execPath, [path.join('scripts', 'build-hooks.js')], {
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cwd: REPO_ROOT,
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encoding: 'utf-8',
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timeout: 60000,
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});
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assert.equal(r2.status, 0,
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`build-hooks second run must exit 0; stderr=${r2.stderr.slice(0, 400)}`);
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const snapshotB = snapshotDir(DIST_DIR);
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assert.equal(snapshotB.size, snapshotA.size,
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`hooks/dist/ file count must be stable: a=${snapshotA.size} b=${snapshotB.size}`);
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for (const [rel, hashA] of snapshotA) {
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const hashB = snapshotB.get(rel);
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assert.equal(hashB, hashA,
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`hooks/dist/${rel} changed between consecutive runs (atomic-write must produce identical output)`);
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}
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});
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test('no orphaned .dist-staging-* directories remain after the run', () => {
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// The second run (just above) creates and cleans its own staging dir.
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// Any leftover with the second-run's PID would prove the cleanup
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// step failed. We can only check the *current* state — that is, any
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// staging directory that was not present before the build started.
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const stagingAfter = fs.readdirSync(HOOKS_DIR)
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.filter((n) => n.startsWith('.dist-staging-'));
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const orphaned = stagingAfter.filter((n) => !stagingBefore.includes(n));
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assert.deepEqual(orphaned, [],
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`build-hooks left orphaned staging directories: ${orphaned.join(', ')}`);
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});
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test('every file in hooks/dist/ that is JavaScript parses without SyntaxError', () => {
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// Positive proof of the build-hooks syntax guard: every shipped .js
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// file must parse. If a SyntaxError survives the guard and lands in
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// dist/, this assertion fails with the file named.
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const vm = require('node:vm');
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for (const [rel] of snapshotDir(DIST_DIR)) {
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if (!rel.endsWith('.js')) continue;
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const src = fs.readFileSync(path.join(DIST_DIR, rel), 'utf-8');
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assert.doesNotThrow(
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() => new vm.Script(src, { filename: rel }),
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`hooks/dist/${rel} has a SyntaxError — build-hooks syntax guard let it through`,
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);
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}
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});
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});
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Reference in New Issue
Block a user