test/runTest/runtime/MockDate.js

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/

// Mock date.
const NativeDate = window.Date;

const fixedTimestamp = 1566458693300;
const actualTimestamp = NativeDate.now();
const mockNow = function () {
    // speed up
    return fixedTimestamp + (NativeDate.now() - actualTimestamp) * window.__TEST_PLAYBACK_SPEED__;
};
function MockDate(...args) {
    if (!args.length) {
        return new NativeDate(mockNow());
    }
    else {
        return new NativeDate(...args);
    }
}
MockDate.prototype = Object.create(NativeDate.prototype);
Object.setPrototypeOf(MockDate, NativeDate);
MockDate.now = mockNow;


export default MockDate;