Angular Testing - Quick Reference Deep Knowledge : Use with technology: , topic: for comprehensive documentation. Standalone Component Testing Service Testing Testing Signals Testing Forms Testing Guards Anti-Patterns | Anti-Pattern | Why It's Bad | Correct Approach | |--------------|--------------|------------------| | Testing implementation details | Brittle tests | Test behavior and outputs | | Not using | Undetected HTTP issues | Always verify in afterEach | | Real HTTP in unit tests | Flaky, slow | Use | | Not testing error paths | Incomplete coverage | Test error scenarios | ---