Source/WebInspectorUI/UserInterface/Test/TestUtilities.js

/*
 * Copyright (C) 2017 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

//
// This can be used to get a promise for any function that takes a callback.
//
// For example:
//
//    object.getValues(arg1, arg2, (callbackArg1, callbackArg2) => {
//        ...
//    });
//
// Can be promisified like so:
//
//    promisify((cb) => { object.getValues(arg1, arg2, cb); }).then([callbackArg1, callbackArg2]) {
//        ...
//    });
//
// Or more naturally with await:
//
//    let [callbackArg1, callbackArg2] = await promisify((cb) => { object.getValues(arg1, arg2, cb); });
//

function promisify(func) {
    return new Promise((resolve, reject) => {
        try {
            func((...args) => { resolve(args); });
        } catch (e) {
            reject(e);
        }
    });
}

function sanitizeURL(url) {
    return url.replace(/^.*?LayoutTests\//, "");
}