jest.config.js

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/** @type {import('jest').Config} */
const config = {
  collectCoverageFrom: ['<rootDir>/src/**/*.{js|ts|tsx}', '!<rootDir>/src/**/*.spec.js'],
  coverageDirectory: './jest-coverage',
  testEnvironment: 'jsdom',
  setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
  verbose: true,
  testMatch: ['<rootDir>/src/**/*.spec.js', '<rootDir>/test/**/*.spec.js'],
  // Per https://jestjs.io/docs/configuration#transformignorepatterns-arraystring, transformIgnorePatterns ignores
  // node_modules and pnp folders by default so that they are not transpiled
  // Some libraries (even if transitive) are transitioning to ESM and need additional transpilation. Relevant issues:
  // - tiny-sdf: https://github.com/visgl/deck.gl/issues/7735
  transformIgnorePatterns: ['/node_modules/(?!(.*@mapbox/tiny-sdf.*))', '\\.pnp\\.[^\\/]+$']
};

module.exports = config;