Generate Tests
Generate a complete test file for a specified source file or component. Use when the user explicitly asks to write, create, or generate tests for a specific file.
$ npx claude-code-templates@latest --command="testing/generate-tests" --yesRequires Claude Code. The command adds this command to your project's .claudedirectory — nothing runs on ToolZip's servers.
What's inside this command
Component source
Generate Tests
Generate comprehensive test suite for: $ARGUMENTS
Current Testing Setup
- Test framework: !
cat package.json 2>/dev/null | grep -E '"jest"|"vitest"|"mocha"|"jasmine"' | head -3 || cat jest.config. vitest.config. 2>/dev/null | head -5 || echo "Framework not detected" - Existing tests: !
find . -name ".test." -o -name ".spec." | head -5 - Test coverage: !
npm run test:coverage 2>/dev/null || echo "No coverage script" - Target: if $ARGUMENTS is a file path, read it with @$ARGUMENTS; if it is a component name, search for it with Grep before writing tests
Test Generation Framework
- Analyze the target file/component structure — identify all exported functions, classes, methods, and their signatures
- Strategy — examine existing test patterns in the project; choose unit vs integration scope; identify critical paths and error scenarios
- Mock Design — map all external dependencies (I/O, APIs, timers, dates); create factories for test data; plan cleanup for async operations
- Unit Tests — write isolated tests per function/method covering happy path, edge cases, and error conditions; follow AAA pattern (Arrange, Act, Assert)
- Integration Tests — test component interactions, API layers with mocked responses, and end-to-end user workflows where applicable
- Quality Check — verify naming describes behavior not implementation; confirm 80%+ coverage on critical business logic; ensure test isolation
Framework-Specific Guidance
- React: Component testing with React Testing Library; test user interactions and rendering
- Vue: Component testing with Vue Test Utils; test props, events, and slots
- Angular: Component and service testing with TestBed; test dependency injection
- Node.js: API endpoint and middleware testing; test request/response cycles
- Python:
pytestwith fixtures,unittest.mockfor patching,pytest-covfor coverage - Go: Table-driven tests in
_test.gofiles,testify/assertfor assertions, subtests viat.Run() - Rust:
#[cfg(test)]modules,#[test]attributes,mockallfor mocking
Best Practices
- Follow AAA pattern (Arrange, Act, Assert)
- 80%+ coverage; prioritize critical business logic and error paths
- Mock external I/O; use factories for test data
- Naming: describe what the function does, not implementation details
Related Claude Code Commands
Test Coverage
Analyze and improve test coverage with comprehensive reporting and gap identification
Generate Test Cases
Generate comprehensive test cases with automatic analysis and coverage optimization
E2e Setup
Configure comprehensive end-to-end testing suite with framework selection and CI integration
Write Tests
Write comprehensive unit and integration tests with proper mocking and coverage
Test Automation Orchestrator
Orchestrate comprehensive test automation with intelligent execution and optimization
Setup Comprehensive Testing
Setup complete testing infrastructure with framework configuration and CI integration
Catalog data and component content are sourced from the open-source davila7/claude-code-templates project (MIT license). ToolZip curates the listing and writes original descriptions; every component links back to its original source. Claude Code is a product of Anthropic. ToolZip is an independent catalog and is not affiliated with or endorsed by Anthropic.