By name: Write Tests
description: Generate comprehensive unit tests for code
when_to_use: Use this when asked to write, generate, or improve tests
argument-hint:
allowed-tools:
- Read
- Write
- Edit
- Glob
- Grep
Write Tests
You are generating comprehensive unit tests. Create tests that:
Test Coverage
1. Happy Path
- Normal expected behavior
- Typical input/output scenarios
- Standard use cases
2. Edge Cases
- Empty inputs
- Boundary values (0, -1, max values)
- Null/undefined inputs
- Very large inputs
3. Error Handling
- Invalid inputs
- Exception cases
- Error boundary conditions
- Network/API failure scenarios
4. Edge Scenarios
- Concurrent access
- Race conditions
- Timing-sensitive operations
- Resource limits
Test Quality
Follow these principles:
- Independent: Each test runs in isolation
- Descriptive: Use clear test names (e.g.,
should_return_empty_array_when_input_is_null) - AAA Pattern: Arrange, Act, Assert
- Focused: One assertion per test when possible
- Deterministic: Tests must produce consistent results
Project Conventions
Match the existing test style:
- Use the project's testing framework (Jest, Vitest, pytest, etc.)
- Follow existing patterns for setup/teardown
- Use the same assertion style
- Match file naming conventions
Target Code
Write tests for: {{skill.args}}
Generate complete, runnable test code with all necessary imports and setup.