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Testing Guide

Running Tests

npm test                   # Run all tests
npm run test:watch         # Run tests in watch mode
npm run test:coverage      # Run tests with coverage report

Running Specific Tests

Run a specific test file:

npx jest src/utils/foo.test.ts       # Run specific test file
npx jest -t "<test-name-pattern>"    # Run tests matching pattern

Coverage Requirements

Coverage thresholds are set to 80% for all metrics (branches, functions, lines, statements). CLI code is excluded from coverage as it's verified through integration tests.

Writing Tests

  • Test files should be co-located with source files as **/*.test.ts
  • Use the path alias @/ which maps to src/
  • Tests run in Node.js environment using ts-jest preset
  • Follow existing test patterns in the codebase