QA360 Core Engine

The heart of QA360 - handles proof generation, cryptographic signatures, and evidence vault.

Modules

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- ProofGenerator - Creates verifiable quality proofs
- SignatureManager - Ed25519 cryptographic signatures
- TrustScoreCalculator - Quantifies test confidence

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- EvidenceVault - SQLite WAL storage for test history
- HistoryManager - Track changes and trends over time
- AuditTrail - Immutable record of all operations

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- KeyManager - Secure key generation and storage
- EncryptionService - AES-256-GCM for sensitive data
- IntegrityChecker - Verify data hasn't been tampered

Adapters

| Adapter | Description | Status |
|---------|-------------|--------|
| playwright-api | REST/GraphQL API testing | ✅ Production |
| playwright-ui | UI + Accessibility testing | ✅ Production |
| k6-perf | Load & performance testing | ✅ Production |
| semgrep-sast | Static security analysis | ✅ Production |
| zap-dast | Dynamic security scanning (Docker/local) | ✅ Production |
| gitleaks-secrets | Secret detection in code | ✅ Production |
| osv-deps | Dependency vulnerability scanning | ✅ Production |

Phase3Runner

The orchestration engine for quality gates:

``typescript
import { Phase3Runner } from 'qa360-core';

const runner = new Phase3Runner({
workingDir: process.cwd(),
pack: packConfig,
});

const result = await runner.run();
// Result includes: gates, trustScore, proofPath, duration
`

Architecture Principles

- Local-first: No cloud dependencies required
- Cryptographically verifiable: All proofs are signed
- Immutable audit trail: Evidence cannot be altered
- Performance optimized: SQLite WAL for concurrent access

Development

`bash
cd core/
npm install
npm run build
npm test
`

Browser Management

QA360 uses Playwright for browser automation. By default, Chromium is bundled and ready to use.

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`bash
pnpm browsers:check
`

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`bash


Install Chromium (usually pre-installed)

pnpm browsers:install:chromium

Install Firefox

pnpm browsers:install:firefox

Install WebKit

pnpm browsers:install:webkit

Install all browsers

pnpm browsers:install:all
`

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Tests automatically skip if a required browser is not installed:

`
⚠️ firefox is optional and not installed. Install with: npx playwright install firefox
⊘ Firefox Browser E2E > should launch Firefox browser ... Skipped
``

Documentation

- Browser Support - Complete browser management guide
- Multi-Browser Strategy - Cross-browser testing approach
- CHECKLIST_VALIDATION - Feature coverage matrix