4b908e6bcd
* feat(#454): add antagonistic tier — fast-check property tests + Stryker mutation config Adds property-based testing (fast-check v4) and mutation testing scaffolding (Stryker v8) as the antagonistic validation tier for lib/*.cjs pure logic. ## Files added ### Shared setup - tests/helpers/fast-check-setup.cjs — configureGlobal({ numRuns:200, seed:42 }) for deterministic CI; override locally with GSD_FC_SEED ### Property test suites (node:test + fast-check) - tests/context-utilization.property.test.cjs — boundary at 60%/70% thresholds (exact Math.ceil boundary, not Math.floor), TypeError on all invalid inputs, overflow clamping to 100%/critical, shape invariants (7 tests, all pass) - tests/prompt-budget.property.test.cjs — estimateTokens monotonicity + ceil(len/4) exactness; applyBudget shape invariant, instructions/roadmap verbatim, budget envelope, omit tracking (11 tests, all pass) - tests/frontmatter.property.test.cjs — extractFrontmatter/reconstructFrontmatter/ spliceFrontmatter never-throw + type shape + splice→extract round-trip (9 tests) - tests/adr-parser.property.test.cjs — shouldRejectAdrStatus boundary (3 statuses only), parseAdrMarkdown shape + title trim invariant (discovered: parser trims trailing whitespace) (9 tests, all pass) - tests/config-schema.property.test.cjs — isValidConfigKey never throws, returns boolean, accepts all VALID/RUNTIME_STATE_KEYS, rejects empty/null/unknown (8 tests) ### Stryker mutation config - stryker.config.mjs — testRunner:'command', mutate bin/lib/**/*.cjs minus 13 generated files, coverageAnalysis:'off', thresholds {high:80,low:60,break:50}, incremental:true, reporters html+clear-text+progress ### CI workflow - .github/workflows/mutation.yml — PR-gating job (pull_request + workflow_dispatch), runs stryker --incremental --since origin/next (changed files only), uploads HTML artifact; SINCE_REF via env not interpolation (injection-safe) ### Package config - package.json: +test:mutation, +test:mutation:since scripts - .gitignore: +.stryker-tmp/, +.stryker-incremental.json, +reports/mutation/ - package-lock.json: fast-check@4.8.0, @stryker-mutator/core@9.6.1 ## Verified node --test on all 5 property test files: 44 tests, 0 failures. Stryker NOT run (slow; reserved for CI). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(#454): pin upload-artifact to v7.0.1 SHA used across repo (bad SHA ea165f8d) The SHA ea165f8d65b6e75b540449d3ec4f5dde0c5a4e1 (labeled v4.6.2) does not resolve on GitHub Actions. All other workflows in this repo pin 043fb46d1a93c77aae656e7c1c64a875d1fc6a0a (v7.0.1) — align mutation.yml. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(#454): mutation workflow — replace invalid --since flag with changed-core-files --mutate scoping Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> --------- Co-authored-by: CI Rebase Check <ci@gsd-redux> Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
25 lines
594 B
JavaScript
25 lines
594 B
JavaScript
'use strict';
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/**
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* fast-check-setup.cjs
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*
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* Shared configuration for all property-based tests. Require this at the
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* top of every *.property.test.cjs file before any fc.assert() call.
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*
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* Settings:
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* numRuns: 200 — enough to catch boundary bugs without slow CI
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* seed: 42 — deterministic across CI runs; set GSD_FC_SEED=<n> to
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* override locally for exploration
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*/
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const fc = require('fast-check');
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const seed = process.env.GSD_FC_SEED ? Number(process.env.GSD_FC_SEED) : 42;
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fc.configureGlobal({
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numRuns: 200,
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seed,
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});
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module.exports = fc;
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