jsdom-ts-cjs

jsdom-ts-cjs runs TypeScript tests as CommonJS in the jsdom environment. ts-jest transforms TypeScript, and jest-esm-transformer-2 transforms JavaScript, including ESM packages in node_modules.

Usage

module.exports = {
  preset: '@repobuddy/jest/presets/jsdom-ts-cjs',
}

Options

None. A preset takes no options.

Effective config

Printed from the built preset, in a directory that has a src folder:

{
  transform: {
    '^.+\\.(ts|tsx|cts|mts)$': ['ts-jest', { isolatedModules: true }],
    '\\.m?jsx?$': 'jest-esm-transformer-2',
  },
  transformIgnorePatterns: [],
  collectCoverageFrom: [
    '<rootDir>/src/**/*.{js,jsx,cjs,mjs,ts,tsx,cts,mts}',
    '!<rootDir>/src/**/*.stories.*',
  ],
  roots: ['<rootDir>/src'],
  testEnvironment: 'jsdom',
  testMatch: [
    '**/?*\\.(spec|test|unit|accept|integrate|learning|system|perf|stress)?(.jsdom).(js|jsx|cjs|mjs|ts|tsx|cts|mts)',
  ],
}

It is built from configs.tsCjs, configs.configSource(), and configs.jsdom.

Packages it needs

extract.extractPackages() on the preset returns:

['jest-environment-jsdom', 'jest-esm-transformer-2', 'ts-jest']

@repobuddy/jest does not declare jest-environment-jsdom. Install it yourself. ts-jest also needs typescript.

Behavior

Same transforms as ts-cjs, including transformIgnorePatterns: [].
Uses testMatch instead of testRegex. See test file names.
Sets no coveragePathIgnorePatterns. Jest skips test files from coverage on its own.

`jsdom-ts-cjs-watch` variant

@repobuddy/jest/presets/jsdom-ts-cjs-watch is jsdom-ts-cjs plus the watch plugins of the watch preset.

Examples

module.exports = {
  preset: '@repobuddy/jest/presets/jsdom-ts-cjs-watch',
}