eslint-config-react-app/jest.js

/**
 * Copyright (c) 2015-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

// Fix eslint shareable config (https://github.com/eslint/eslint/issues/3458)
require('@rushstack/eslint-patch/modern-module-resolution');

// We use eslint-loader so even warnings are very visible.
// This is why we prefer to use "WARNING" level for potential errors,
// and we try not to use "ERROR" level at all.

module.exports = {
  plugins: ['jest', 'testing-library'],
  overrides: [
    {
      files: ['**/__tests__/**/*', '**/*.{spec,test}.*'],
      env: {
        'jest/globals': true,
      },
      // A subset of the recommended rules:
      rules: {
        // https://github.com/jest-community/eslint-plugin-jest
        'jest/no-conditional-expect': 'error',
        'jest/no-identical-title': 'error',
        'jest/no-interpolation-in-snapshots': 'error',
        'jest/no-jasmine-globals': 'error',
        'jest/no-jest-import': 'error',
        'jest/no-mocks-import': 'error',
        'jest/valid-describe-callback': 'error',
        'jest/valid-expect': 'error',
        'jest/valid-expect-in-promise': 'error',
        'jest/valid-title': 'warn',

        // https://github.com/testing-library/eslint-plugin-testing-library
        'testing-library/await-async-query': 'error',
        'testing-library/await-async-utils': 'error',
        'testing-library/no-await-sync-query': 'error',
        'testing-library/no-container': 'error',
        'testing-library/no-debugging-utils': 'error',
        'testing-library/no-dom-import': ['error', 'react'],
        'testing-library/no-node-access': 'error',
        'testing-library/no-promise-in-fire-event': 'error',
        'testing-library/no-render-in-setup': 'error',
        'testing-library/no-unnecessary-act': 'error',
        'testing-library/no-wait-for-empty-callback': 'error',
        'testing-library/no-wait-for-multiple-assertions': 'error',
        'testing-library/no-wait-for-side-effects': 'error',
        'testing-library/no-wait-for-snapshot': 'error',
        'testing-library/prefer-find-by': 'error',
        'testing-library/prefer-presence-queries': 'error',
        'testing-library/prefer-query-by-disappearance': 'error',
        'testing-library/prefer-screen-queries': 'error',
        'testing-library/render-result-naming-convention': 'error',
      },
    },
  ],
};