angular-docs-cn/packages/zone.js/test/performance/promise.js

/**
 * @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
 */
(function(_global) {
var mark = _global['__zone_symbol__mark'];
var measure = _global['__zone_symbol__measure'];
var testRunner = _global['__zone_symbol__testRunner'];
var zone = _global['__zone_symbol__callbackZone'];
var nativePromise = _global['__zone_symbol__Promise'];
var resolved = Promise.resolve(1);
var nativeResolved = nativePromise.resolve(1);
var testTarget = {
  title: 'Promise',
  times: 10,
  before: function() {
    _global['__zone_symbol__callbackContext'].measureName = 'Promise_callback';
    _global['__zone_symbol__callbackContext'].type = 'microTask';
    _global['__zone_symbol__callbackContext'].source = 'Promise.then';
  },
  apis: [
    {
      supportClear: false,
      isAsync: true,
      method: 'Promise',
      nativeMethod: 'native_Promise',
      run: function() {
        return resolved.then(function() {});
      },
      nativeRun: function() {
        return nativeResolved['__zone_symbol__then'](function() {});
      },
    },
    {
      isCallback: true,
      isAsync: true,
      supportClear: false,
      method: 'Promise_callback',
      nativeMethod: 'native_Promise_callback',
      run: function() {
        return zone.run(function() {
          return Promise.resolve(1).then(function(v) {
            return v;
          });
        });
      },
      nativeRun: function() {
        var func = function() {};
        return _global['__zone_symbol__Promise'].resolve(1)['__zone_symbol__then'](function() {
          mark('native_Promise_callback');
          var result = func.apply(this, arguments);
          measure('native_Promise_callback', 'native_Promise_callback');
          return result;
        });
      }
    }
  ],
};
return testRunner(testTarget);
}(typeof window === 'undefined' ? global : window));