Write comprehensive tests for code including unit tests, integration tests, and end-to-end tests. Use this to ensure code quality, catch bugs, and validate functionality.
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---
name: test-writing
description: >
Write comprehensive tests for code including unit tests, integration tests, and end-to-end tests. Use this to ensure code quality, catch bugs, and validate functionality.
---
# Test Writing Skill
## Overview
Create thorough test coverage for software components.
## Workflow
1. **Analyze Code**: Understand what needs testing
2. **Identify Test Cases**:
- Happy path scenarios
- Edge cases
- Error conditions
- Boundary values
3. **Write Tests**: Create test files following project conventions
4. **Verify**: Run tests to ensure they pass
5. **Document**: Add test descriptions
## Test Types
### Unit Tests
- Test individual functions/methods
- Mock dependencies
- Fast execution
- High coverage
### Integration Tests
- Test component interactions
- Real dependencies when possible
- Test data flow
- API contracts
### End-to-End Tests
- Test complete user workflows
- Real environment
- Critical paths
- User scenarios
## Test Quality Standards
- Clear test names describing what is tested
- Arrange-Act-Assert pattern
- One assertion per test (generally)
- Independent tests (no shared state)
- Fast and reliable
## Tools
- `view`: To read code being tested
- `create_file`: To create new test files
- `run_terminal_command`: To execute test suites
- `grep_search`: To find existing tests
## Best Practices
- Test behavior, not implementation
- Cover edge cases thoroughly
- Keep tests maintainable
- Use descriptive test names
- Don't test framework code
- Mock external dependencies
