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test: различать исходы мутационного гейта (#550)
Issue: #550 User-Visible: no
This commit is contained in:
+178
-47
@@ -41,6 +41,9 @@ import { createHash } from 'node:crypto';
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import { mkdirSync } from 'node:fs';
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import { withoutProductVersion } from './source-fingerprint.mjs';
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import { closure, trackedFiles } from './check-inputs.mjs';
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import {
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MUTATION_OUTCOME, MUTATION_PROOF, isProofOutcome, runGuardPhases, runMutationLifecycle,
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} from './mutation-guard-outcome.mjs';
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const repoRoot = fileURLToPath(new URL('..', import.meta.url));
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@@ -3722,6 +3725,19 @@ const MUTANT_DEFINITIONS = [
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replace: " if (asEscaped) { escaped.add(asEscaped[1]); continue; }\n if (/^FAIL (\\S+)/.test(line)) { escaped.add(line.split(' ')[1].replace(/:$/, '')); continue; }",
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}],
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},
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{
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id: 'mutation-report-setup-as-unparsed',
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guard: 'node --test --test-name-pattern="#550: setup/invalid/interruption" '
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+ 'test/mutation-gate-report.test.mjs',
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because: 'setup, invalid-patch and infrastructure outcomes must be called out as missing '
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+ 'evidence; losing their parser branch buries the reason in generic text and invites a '
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+ 'false escaped/caught interpretation (#550 AC4)',
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patches: [{
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file: 'scripts/mutation-gate-report.mjs',
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find: ' if (asUnverifiable && known.has(asUnverifiable[1])) {',
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replace: ' if (false && asUnverifiable && known.has(asUnverifiable[1])) {',
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}],
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},
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{
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id: 'mutation-report-accepts-foreign-material',
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guard: 'node --test --test-name-pattern="foreign SHA и отсутствующий шард" '
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@@ -3742,14 +3758,19 @@ const MUTANT_DEFINITIONS = [
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+ 'skip it on every later push and hide the exact rot the gate exists for (#481)',
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patches: [{
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file: 'scripts/mutation-gate.mjs',
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find: ' if (!runMutant(entry.mutant)) ' + 'continue;\n caught++;',
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replace: ' if (!runMutant(entry.mutant)) { if (ledger) recordCaught(ledgerArg, ledger, entry.mutant, entry.fingerprint); continue; }\n caught++;',
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find: ' if (!isProofOutcome(outcome)) {\n'
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+ ' if (outcome.kind !== MUTATION_OUTCOME.SURVIVED) unverifiable = true;',
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replace: ' if (!isProofOutcome(outcome)) {\n'
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+ " if (ledger) recordCaught(ledgerArg, ledger, entry.mutant, entry.fingerprint, 'assertion');\n"
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+ ' if (outcome.kind !== MUTATION_OUTCOME.SURVIVED) unverifiable = true;',
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}, {
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// Unit-наблюдаемая половина того же контракта: пустой отпечаток в
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// записи считался бы «совпавшим» с любым — журнал перестаёт сравнивать.
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file: 'scripts/mutation-gate.mjs',
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find: " if (ledger.caught[mutant.id] === fingerprint) " + "skipped.push(mutant);",
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replace: " if (ledger.caught[mutant.id] === fingerprint || mutant.id in ledger.caught) skipped.push(mutant);",
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find: ' if (proof?.fingerprint === fingerprint && proof.proof === expectedProof\n'
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+ ' && validProof(proof.proof)) skipped.push(mutant);',
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replace: ' if ((proof?.fingerprint === fingerprint && proof.proof === expectedProof\n'
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+ ' && validProof(proof.proof)) || mutant.id in ledger.caught) skipped.push(mutant);',
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}],
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},
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{
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@@ -3903,8 +3924,36 @@ const MUTANT_DEFINITIONS = [
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+ 'or killed by the timeout must keep what it proved, or the snowball returns (#481)',
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patches: [{
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file: 'scripts/mutation-gate.mjs',
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find: " ledger.caught[mutant.id] = fingerprint;\n mkdirSync(dirname(file), " + "{ recursive: true });\n writeFileSync(file,",
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replace: " ledger.caught[mutant.id] = fingerprint;\n mkdirSync(dirname(file), { recursive: true });\n if (Object.keys(ledger.caught).length > 1) writeFileSync(file,",
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find: ' ledger.caught[mutant.id] = { fingerprint, proof };\n'
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+ ' mkdirSync(dirname(file), { recursive: true });\n writeFileSync(file,',
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replace: ' ledger.caught[mutant.id] = { fingerprint, proof };\n'
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+ ' mkdirSync(dirname(file), { recursive: true });\n'
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+ ' if (Object.keys(ledger.caught).length > 1) writeFileSync(file,',
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}],
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},
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{
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id: 'mutation-outcome-setup-counts-as-assertion',
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guard: 'node --test test/mutation-guard-outcome.test.mjs',
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because: 'a compile or preparation failure before the declared oracle must never be reusable '
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+ 'proof that the named assertion executed and killed the mutant (#550 AC1-AC3)',
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patches: [{
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file: 'scripts/mutation-guard-outcome.mjs',
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find: " if (phase === 'setup') {",
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replace: " if (false && phase === 'setup') {",
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}],
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},
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{
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id: 'mutation-ledger-accepts-setup-proof',
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guard: 'node --test --test-name-pattern="#550 fixture: clean setup|#481 AC3" '
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+ 'test/mutation-guard-outcome.test.mjs test/mutation-gate.test.mjs',
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because: 'ledger reuse may only carry an assertion or an explicitly declared compile-time '
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+ 'witness; admitting setup failures makes a transient broken runner green forever (#550 AC4)',
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patches: [{
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file: 'scripts/mutation-gate.mjs',
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find: 'const validProof = (proof) => Object.values(MUTATION_PROOF)'
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+ '.includes(proof);',
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replace: "const validProof = (proof) => proof === 'setup' || Object.values(MUTATION_PROOF)"
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+ '.includes(proof);',
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}],
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},
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{
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@@ -9266,6 +9315,8 @@ export function applyPatches(root, patches) {
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function sh(cmd, cwd, extraEnv = {}) {
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return spawnSync(cmd, {
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cwd, shell: true, encoding: 'utf8', maxBuffer: 64 * 1024 * 1024,
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timeout: Number(process.env.MUTATION_COMMAND_TIMEOUT_MS) || 180_000,
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killSignal: 'SIGTERM',
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env: { ...process.env, ...extraEnv },
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});
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}
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@@ -9342,16 +9393,18 @@ function seedTestBuild(dir) {
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/**
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* Собрать `test-build/` из мутированного src в каталоге мутанта.
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*
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* Код выхода `tsc` игнорируется сознательно, по той же причине, что и в
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* `buildBundle`: мутант воспроизводит поломку, а не образцовый код, и имеет
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* право быть нестрогим по типам. Доказательством служит появление каталога —
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* если его нет, падаем громко, а не отдаём тесту пустоту.
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* `tsc` здесь — подготовка, а не заявленный оракул. Его отказ не может
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* считаться падением последующего теста (#550), даже если тёплый каталог от
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* прошлого дерева всё ещё существует.
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*/
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function buildTestBuild(dir) {
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seedTestBuild(dir);
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sh('npx tsc -p tsconfig.test.json', dir);
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const built = sh('npx tsc -p tsconfig.test.json', dir);
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if (built.status !== 0) {
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throw new Error(`test-build не скомпилировался в мутанте:\n${(built.stderr || built.stdout || built.error?.message || '').slice(-2000)}`);
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}
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const fixed = sh('node scripts/fix-test-build.mjs', dir);
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if (!existsSync(join(dir, 'test-build'))) {
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if (fixed.status !== 0 || !existsSync(join(dir, 'test-build'))) {
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throw new Error(`test-build не собрался в мутанте:\n${(fixed.stderr || fixed.stdout).slice(-2000)}`);
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}
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}
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@@ -9361,31 +9414,66 @@ function buildBundle(dir) {
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// типам — он воспроизводит поломку, а не образцовый код.
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const built = sh('npx rollup -c', dir);
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if (built.status !== 0) {
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throw new Error(`сборка мутанта упала:\n${(built.stderr || built.stdout).slice(-2000)}`);
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throw new Error(`сборка мутанта упала:\n${String(built.stderr || built.stdout || built.error?.message || '').slice(-2000)}`);
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}
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const synced = sh('node scripts/bundle-sync.mjs', dir);
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if (synced.status !== 0) {
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throw new Error(`дерево бандла мутанта не синхронизировалось:\n${(synced.stderr || synced.stdout).slice(-2000)}`);
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throw new Error(`дерево бандла мутанта не синхронизировалось:\n${String(synced.stderr || synced.stdout || synced.error?.message || '').slice(-2000)}`);
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}
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}
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function printMutantOutcome(mutant, outcome) {
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if (outcome.kind === MUTATION_OUTCOME.ASSERTION_KILLED) {
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console.log(`ok ${mutant.id}: заявленный тест покраснел на мутанте`);
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return;
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}
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if (outcome.kind === MUTATION_OUTCOME.COMPILE_KILLED) {
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console.log(`ok ${mutant.id}: явный compile-time свидетель поймал мутант`);
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return;
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}
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if (outcome.kind === MUTATION_OUTCOME.SURVIVED) {
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// Формат читает mutation-gate-report.mjs — менять синхронно.
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console.log(`FAIL ${mutant.id}: тест остался зелёным на сломанном коде`);
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console.log(` guard: ${mutant.guard}`);
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console.log(` ${mutant.because}`);
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return;
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}
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const labels = {
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[MUTATION_OUTCOME.INVALID]: 'неприменимый мутант',
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[MUTATION_OUTCOME.SETUP]: 'ошибка подготовки до заявленного теста',
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[MUTATION_OUTCOME.INTERRUPTED]: 'прерывание инфраструктуры',
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};
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console.log(`FAIL ${mutant.id}: ${labels[outcome.kind] || outcome.kind}`);
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if (outcome.command) console.log(` command: ${outcome.command}`);
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if (outcome.detail) console.log(` ${outcome.detail}`);
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}
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function runMutant(mutant) {
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const dir = makeWorktree();
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let dir;
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try {
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applyPatches(dir, mutant.patches);
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if (guardNeedsBundle(mutant.guard)) buildBundle(dir);
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if (guardNeedsTestBuild(mutant.guard)) buildTestBuild(dir);
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const guard = sh(mutant.guard, dir);
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if (guard.status === 0) {
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console.log(`FAIL ${mutant.id}: тест остался зелёным на сломанном коде`);
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console.log(` guard: ${mutant.guard}`);
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console.log(` ${mutant.because}`);
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return false;
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}
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console.log(`ok ${mutant.id}: тест покраснел, как обязан`);
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return true;
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dir = makeWorktree();
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const outcome = runMutationLifecycle({
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apply: () => applyPatches(dir, mutant.patches),
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prepare: () => {
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if (guardNeedsBundle(mutant.guard)) buildBundle(dir);
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if (guardNeedsTestBuild(mutant.guard)) buildTestBuild(dir);
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},
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guard: mutant.guard,
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proof: mutant.oracle || MUTATION_PROOF.ASSERTION,
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execute: (command) => sh(command, dir),
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});
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printMutantOutcome(mutant, outcome);
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return outcome;
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} catch (error) {
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const outcome = {
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kind: MUTATION_OUTCOME.INTERRUPTED,
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detail: error.message,
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command: '',
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};
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printMutantOutcome(mutant, outcome);
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return outcome;
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} finally {
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dropWorktree(dir);
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if (dir) dropWorktree(dir);
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}
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}
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@@ -9395,14 +9483,30 @@ function runCleanGuards(mutants) {
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const guards = [...new Set(mutants.map((m) => m.guard))];
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const dir = makeWorktree();
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try {
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if (guards.some(guardNeedsBundle)) buildBundle(dir);
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// Один worktree на все чистые гварды — значит и компиляция одна.
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if (guards.some(guardNeedsTestBuild)) buildTestBuild(dir);
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try {
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if (guards.some(guardNeedsBundle)) buildBundle(dir);
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// Один worktree на все чистые гварды — значит и компиляция одна.
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if (guards.some(guardNeedsTestBuild)) buildTestBuild(dir);
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} catch (error) {
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console.log(`FAIL чистая подготовка: ${error.message}`);
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return false;
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}
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for (const guard of guards) {
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const result = sh(guard, dir);
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if (result.status !== 0) {
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console.log(`FAIL чистый прогон: ${guard} красный без мутанта`);
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console.log((result.stderr || result.stdout).slice(-1500));
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const mutant = mutants.find((item) => item.guard === guard);
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const outcome = runGuardPhases(guard, {
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proof: mutant?.oracle || MUTATION_PROOF.ASSERTION,
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execute: (command) => sh(command, dir),
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});
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if (outcome.kind !== MUTATION_OUTCOME.SURVIVED) {
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if (outcome.kind === MUTATION_OUTCOME.SETUP) {
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console.log(`FAIL чистая подготовка: ${outcome.command}`);
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} else if (outcome.kind === MUTATION_OUTCOME.INTERRUPTED) {
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console.log(`FAIL чистая инфраструктура: ${outcome.command || guard}`);
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} else {
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// Формат читает mutation-gate-report.mjs — менять синхронно.
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console.log(`FAIL чистый прогон: ${guard} красный без мутанта`);
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}
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if (outcome.detail) console.log(outcome.detail.slice(-1500));
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return false;
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}
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console.log(`ok чистый прогон: ${guard}`);
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@@ -9580,7 +9684,12 @@ export function witnessFingerprint(mutant, {
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normalize = withoutProductVersion(root),
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} = {}) {
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const hash = createHash('sha256');
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hash.update(JSON.stringify({ id: mutant.id, guard: mutant.guard, patches: mutant.patches }));
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hash.update(JSON.stringify({
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id: mutant.id,
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guard: mutant.guard,
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oracle: mutant.oracle || MUTATION_PROOF.ASSERTION,
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patches: mutant.patches,
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}));
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hash.update('\0');
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const text = (file) => String(read(file)).replace(/\r\n?/g, '\n');
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// Сторона патча — только область якоря (#518); сторона гарда — файл целиком:
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@@ -9601,21 +9710,33 @@ export function witnessFingerprint(mutant, {
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return hash.digest('hex');
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}
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export const LEDGER_SCHEMA = 1;
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export const LEDGER_SCHEMA = 2;
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/** Журнал пойманных свидетелей: `{ schema, caught: { [id]: fingerprint } }`. */
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const emptyLedger = () => ({ schema: LEDGER_SCHEMA, caught: {} });
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const validProof = (proof) => Object.values(MUTATION_PROOF).includes(proof);
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/**
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* Журнал доказанных свидетелей.
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*
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* Schema 2 намеренно не принимает старые строки fingerprint: до #550 они не
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* доказывали, что упал именно oracle, а не tsc/setup перед ним.
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*/
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export function readLedger(file) {
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if (!file || !existsSync(file)) return { schema: LEDGER_SCHEMA, caught: {} };
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if (!file || !existsSync(file)) return emptyLedger();
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try {
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const parsed = JSON.parse(readFileSync(file, 'utf8'));
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if (parsed?.schema !== LEDGER_SCHEMA || typeof parsed.caught !== 'object' || !parsed.caught) {
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return { schema: LEDGER_SCHEMA, caught: {} };
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return emptyLedger();
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}
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return { schema: LEDGER_SCHEMA, caught: { ...parsed.caught } };
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const caught = {};
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for (const [id, value] of Object.entries(parsed.caught)) {
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if (typeof value?.fingerprint === 'string' && validProof(value.proof)) caught[id] = { ...value };
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}
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return { schema: LEDGER_SCHEMA, caught };
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} catch {
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// Битый журнал — не отказ гейта: он лишь сужает работу, и пустой журнал
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// означает «гонять всё отобранное», то есть прежнее поведение.
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return { schema: LEDGER_SCHEMA, caught: {} };
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return emptyLedger();
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}
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}
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@@ -9624,8 +9745,9 @@ export function readLedger(file) {
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* или упавший по таймауту шард обязан сохранить уже сделанное, иначе
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* следующий пуш начинает с нуля (снежный ком #481).
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*/
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export function recordCaught(file, ledger, mutant, fingerprint) {
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ledger.caught[mutant.id] = fingerprint;
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export function recordCaught(file, ledger, mutant, fingerprint, proof = MUTATION_PROOF.ASSERTION) {
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if (!validProof(proof)) throw new Error(`нельзя записать недоказанный outcome в ledger: ${proof}`);
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ledger.caught[mutant.id] = { fingerprint, proof };
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mkdirSync(dirname(file), { recursive: true });
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writeFileSync(file, `${JSON.stringify({ schema: LEDGER_SCHEMA, caught: ledger.caught }, null, 2)}\n`);
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}
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@@ -9640,7 +9762,10 @@ export function splitByLedger(mutants, ledger, fingerprintOf = (m) => witnessFin
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const skipped = [];
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for (const mutant of mutants) {
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const fingerprint = fingerprintOf(mutant);
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if (ledger.caught[mutant.id] === fingerprint) skipped.push(mutant);
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const proof = ledger.caught[mutant.id];
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const expectedProof = mutant.oracle || MUTATION_PROOF.ASSERTION;
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if (proof?.fingerprint === fingerprint && proof.proof === expectedProof
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&& validProof(proof.proof)) skipped.push(mutant);
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else run.push({ mutant, fingerprint });
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}
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return { run, skipped };
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@@ -9899,12 +10024,18 @@ async function main(argv) {
|
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}
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if (!runCleanGuards(toRun)) return 2;
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let caught = 0;
|
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let unverifiable = false;
|
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for (const entry of plan) {
|
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if (!runMutant(entry.mutant)) continue;
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const outcome = runMutant(entry.mutant);
|
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if (!isProofOutcome(outcome)) {
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if (outcome.kind !== MUTATION_OUTCOME.SURVIVED) unverifiable = true;
|
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continue;
|
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}
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caught++;
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if (ledger) recordCaught(ledgerArg, ledger, entry.mutant, entry.fingerprint);
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if (ledger) recordCaught(ledgerArg, ledger, entry.mutant, entry.fingerprint, outcome.proof);
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}
|
||||
console.log(`\nпоймано ${caught} из ${toRun.length}`);
|
||||
if (unverifiable) return 2;
|
||||
return caught === toRun.length ? 0 : 1;
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user