4349666ccb
Based on expert review, key improvements: 1. Standardize testing pyramid to 3 layers (Unit/Integration/E2E) - Remove non-standard "Component" layer - Add target percentages per industry standards 2. Add test utilities infrastructure - testutil/factory/ - Test data factories - testutil/mock/ - Unified mock library - testutil/assert/ - Custom assertions 3. Add missing build tags - //go:build slow for performance tests - //go:build e2e for E2E tests 4. Add performance regression testing guidelines 5. Fix flaky test handling - Proper use of context timeout - Skip flaky tests in local dev, run in CI 6. Update references to Google Testing Blog and Atlassian Testing Guide Coverage targets remain aligned with industry: - Unit: 70-80% - Integration: 15-20% - E2E: 5-10%