wallet-core/node_modules/jest-util/build/installCommonGlobals.js
2017-05-28 00:40:43 +02:00

58 lines
1.8 KiB
JavaScript

/**
* Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
*
*/
'use strict';
function deepCopy(obj) {
const newObj = {};
let value;
for (const key in obj) {
value = obj[key];
if (typeof value === 'object' && value !== null) {
value = deepCopy(value);
}
newObj[key] = value;
}
return newObj;
}
module.exports = (global, globals) => {
// Forward some APIs
global.Buffer = Buffer;
// `global.process` is mutated by FakeTimers. Make a copy of the
// object for the jsdom environment to prevent memory leaks.
// Overwrite toString to make it look like the real process object
let toStringOverwrite;
if (Symbol && Symbol.toStringTag) {
// $FlowFixMe
toStringOverwrite = {
[Symbol.toStringTag]: 'process' };
}
global.process = Object.assign({}, process, toStringOverwrite);
global.process.setMaxListeners = process.setMaxListeners.bind(process);
global.process.getMaxListeners = process.getMaxListeners.bind(process);
global.process.emit = process.emit.bind(process);
global.process.addListener = process.addListener.bind(process);
global.process.on = process.on.bind(process);
global.process.once = process.once.bind(process);
global.process.removeListener = process.removeListener.bind(process);
global.process.removeAllListeners = process.removeAllListeners.bind(process);
global.process.listeners = process.listeners.bind(process);
global.process.listenerCount = process.listenerCount.bind(process);
global.setImmediate = setImmediate;
global.clearImmediate = clearImmediate;
Object.assign(global, deepCopy(globals));
};