only-changed-jest-watch-plugin/example/node_modules/jest-config/build/validatePattern.js

Jest watch plugin for running either only the modified test (for TDD), or tests of dependant modules

'use strict';

Object.defineProperty(exports, '__esModule', {
  value: true
});
exports.default = validatePattern;
/**
 * Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 *
 */

function validatePattern(pattern) {
  if (pattern) {
    try {
      // eslint-disable-next-line no-new
      new RegExp(pattern, 'i');
    } catch (e) {
      return false;
    }
  }

  return true;
}