Overview
This skill provides strategies for test design, test coverage, test organization, and testing best practices across different testing types and frameworks.
Test Coverage Targets
- •Critical Code (auth, payment, security): 100%
- •Business Logic: 90-100%
- •Utilities: 80-90%
- •UI Components: 70-80%
- •Overall Project: 80%+
Test Types
Unit Tests
- •Test individual functions/methods in isolation
- •Use mocks for dependencies
- •Fast execution (<1ms per test)
- •Cover happy path, edge cases, errors
Integration Tests
- •Test component interactions
- •Use real dependencies where reasonable
- •Test API endpoints, database operations
- •Moderate execution time
End-to-End Tests
- •Test complete user workflows
- •Use real system components
- •Critical paths only (slower execution)
Test Case Pattern
For each function, create tests for:
- •Happy Path: Normal, expected inputs
- •Edge Cases: Boundary values, empty inputs
- •Error Cases: Invalid inputs, exceptions
- •Special Cases: Nulls, zeros, large values
Test Organization
code
tests/
├── unit/
│ ├── test_module1.py
│ └── test_module2.py
├── integration/
│ └── test_api.py
└── e2e/
└── test_workflows.py
When to Apply
Use when creating test suites, improving coverage, fixing failing tests, or designing test strategies.