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How to use stackIsFromUser method in Jest

Best JavaScript code snippet using jest

collectHandles.js

Source:collectHandles.js

...33 *34 * This source code is licensed under the MIT license found in the35 * LICENSE file in the root directory of this source tree.36 */37function stackIsFromUser(stack) {38  // Either the test file, or something required by it39  if (stack.includes('Runtime.requireModule')) {40    return true;41  } // jest-jasmine it or describe call42  if (stack.includes('asyncJestTest') || stack.includes('asyncJestLifecycle')) {43    return true;44  } // An async function call from within circus45  if (stack.includes('callAsyncCircusFn')) {46    // jest-circus it or describe call47    return (48      stack.includes('_callCircusTest') || stack.includes('_callCircusHook')49    );50  }51  return false;52} // Inspired by https://github.com/mafintosh/why-is-node-running/blob/master/index.js53// Extracted as we want to format the result ourselves54function collectHandles() {55  const activeHandles = new Map();56  let hook;57  try {58    const asyncHooks = require('async_hooks');59    hook = asyncHooks.createHook({60      destroy(asyncId) {61        activeHandles.delete(asyncId);62      },63      init: function initHook(asyncId, type) {64        if (type === 'PROMISE' || type === 'TIMERWRAP') {65          return;66        }67        const error = new (_jestUtil()).ErrorWithStack(type, initHook);68        if (stackIsFromUser(error.stack || '')) {69          activeHandles.set(asyncId, error);70        }71      }72    });73    hook.enable();74  } catch (e) {75    const nodeMajor = Number(process.versions.node.split('.')[0]);76    if (e.code === 'MODULE_NOT_FOUND' && nodeMajor < 8) {77      throw new Error(78        'You can only use --detectOpenHandles on Node 8 and newer.'79      );80    } else {81      throw e;82    }...

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