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Generate Tests

Commands testing 8,211
Install Command
npx claude-code-templates@latest --command testing/generate-tests
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Content

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

  1. Analyze the target file/component structure — identify all exported functions, classes, methods, and their signatures
  2. Strategy — examine existing test patterns in the project; choose unit vs integration scope; identify critical paths and error scenarios
  3. Mock Design — map all external dependencies (I/O, APIs, timers, dates); create factories for test data; plan cleanup for async operations
  4. Unit Tests — write isolated tests per function/method covering happy path, edge cases, and error conditions; follow AAA pattern (Arrange, Act, Assert)
  5. Integration Tests — test component interactions, API layers with mocked responses, and end-to-end user workflows where applicable
  6. 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: pytest with fixtures, unittest.mock for patching, pytest-cov for coverage
  • Go: Table-driven tests in _test.go files, testify/assert for assertions, subtests via t.Run()
  • Rust: #[cfg(test)] modules, #[test] attributes, mockall for 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

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