angular-docs-cn/packages/zone.js/test/test_fake_polyfill.ts

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

/// <reference types="node"/>

'use strict';
(function(global: any) {
// add custom properties to Native Error
const NativeError = global['Error'];
NativeError.customProperty = 'customProperty';
NativeError.customFunction = function() {};

// add fake cordova polyfill for test
const fakeCordova = function() {};

(fakeCordova as any).exec = function(
    success: Function, error: Function, service: string, action: string, args: any[]) {
  if (action === 'successAction') {
    success();
  } else {
    error();
  }
};

global.cordova = fakeCordova;

const TestTarget = global.TestTarget = function() {};

Object.defineProperties(TestTarget.prototype, {
  'onprop1': {configurable: true, writable: true},
  'onprop2': {configurable: true, writable: true},
  'onprop3': {
    configurable: true,
    get: function() {
      return this._onprop3;
    },
    set: function(_value) {
      this._onprop3 = _value;
    }
  },
  '_onprop3': {configurable: true, writable: true, value: function() {}},
  'addEventListener': {
    configurable: true,
    writable: true,
    value: function(eventName: string, callback: Function) {
      if (!this.events) {
        this.events = {};
      }
      const Zone = global.Zone;
      this.events.eventName = {zone: Zone.current, callback: callback};
    }
  },
  'removeEventListener': {
    configurable: true,
    writable: true,
    value: function(eventName: string, callback: Function) {
      if (!this.events) {
        return;
      }
      this.events.eventName = null;
    }
  },
  'dispatchEvent': {
    configurable: true,
    writable: true,
    value: function(eventName: string) {
      const zoneCallback = this.events && this.events.eventName;
      zoneCallback && zoneCallback.zone.run(zoneCallback.callback, this, [{type: eventName}]);
    }
  }
});

// Zone symbol prefix may be set in *-env-setup.ts (browser & node),
// but this file is used in multiple scenarios, and Zone isn't loaded at this point yet.
const zoneSymbolPrefix = global['__Zone_symbol_prefix'] || '__zone_symbol__';

global['__Zone_ignore_on_properties'] =
    [{target: TestTarget.prototype, ignoreProperties: ['prop1']}];
global[zoneSymbolPrefix + 'FakeAsyncTestMacroTask'] = [{source: 'TestClass.myTimeout'}];
// will not monkey patch scroll and wheel event.
global[zoneSymbolPrefix + 'UNPATCHED_EVENTS'] = ['scroll', 'wheel'];
// touchstart and scroll will be passive by default.
global[zoneSymbolPrefix + 'PASSIVE_EVENTS'] = ['touchstart', 'scroll'];
})(typeof window === 'object' && window || typeof self === 'object' && self || global);