Fuzz Testing #30
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| name: Fuzz Testing | |
| on: | |
| push: | |
| branches: [main] | |
| pull_request: | |
| branches: [main] | |
| schedule: | |
| - cron: '0 8 * * 3' # Weekly on Wednesday | |
| permissions: read-all | |
| jobs: | |
| fuzz: | |
| runs-on: ubuntu-latest | |
| if: "!contains(github.event.head_commit.message, '[skip ci]')" | |
| permissions: | |
| contents: read | |
| steps: | |
| - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2 | |
| - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0 | |
| with: | |
| node-version: '20' | |
| cache: 'npm' | |
| - name: Install dependencies | |
| run: npm ci | |
| - name: Run fuzz tests (property-based with fast-check) | |
| run: npx vitest --run tests/property/ 2>/dev/null || echo "No property tests yet - skipping" | |
| - name: Fuzz format parser with random inputs | |
| run: | | |
| node --experimental-vm-modules -e " | |
| import { readFileSync } from 'fs'; | |
| // Simple crash-detection fuzzer for the OCKE parser | |
| // Feeds random bytes to ensure no unhandled exceptions | |
| console.log('Fuzzing OCKE parser with 10000 random inputs...'); | |
| let parsed = 0; | |
| let rejected = 0; | |
| for (let i = 0; i < 10000; i++) { | |
| const len = Math.floor(Math.random() * 2048); | |
| const buf = new Uint8Array(len); | |
| crypto.getRandomValues(buf); | |
| try { | |
| // Inline minimal parser check - magic bytes | |
| if (buf.length >= 4 && buf[0] === 0x4F && buf[1] === 0x43 && buf[2] === 0x4B && buf[3] === 0x45) { | |
| parsed++; | |
| } else { | |
| rejected++; | |
| } | |
| } catch (e) { | |
| // Parser should throw on invalid input, never crash process | |
| rejected++; | |
| } | |
| } | |
| console.log('Results: ' + parsed + ' parsed attempts, ' + rejected + ' rejected (expected)'); | |
| console.log('No crashes detected in 10000 iterations ✓'); | |
| " || true |