RiffMaster_WPFaT2023_Project/Frontend/RiffMasterFront/node_modules/zone.js/fesm2015/zone-testing.js

'use strict';
/**
 * @license Angular v<unknown>
 * (c) 2010-2022 Google LLC. https://angular.io/
 * License: MIT
 */
/**
 * @fileoverview
 * @suppress {globalThis}
 */
const NEWLINE = '\n';
const IGNORE_FRAMES = {};
const creationTrace = '__creationTrace__';
const ERROR_TAG = 'STACKTRACE TRACKING';
const SEP_TAG = '__SEP_TAG__';
let sepTemplate = SEP_TAG + '@[native]';
class LongStackTrace {
    constructor() {
        this.error = getStacktrace();
        this.timestamp = new Date();
    }
}
function getStacktraceWithUncaughtError() {
    return new Error(ERROR_TAG);
}
function getStacktraceWithCaughtError() {
    try {
        throw getStacktraceWithUncaughtError();
    }
    catch (err) {
        return err;
    }
}
// Some implementations of exception handling don't create a stack trace if the exception
// isn't thrown, however it's faster not to actually throw the exception.
const error = getStacktraceWithUncaughtError();
const caughtError = getStacktraceWithCaughtError();
const getStacktrace = error.stack ?
    getStacktraceWithUncaughtError :
    (caughtError.stack ? getStacktraceWithCaughtError : getStacktraceWithUncaughtError);
function getFrames(error) {
    return error.stack ? error.stack.split(NEWLINE) : [];
}
function addErrorStack(lines, error) {
    let trace = getFrames(error);
    for (let i = 0; i < trace.length; i++) {
        const frame = trace[i];
        // Filter out the Frames which are part of stack capturing.
        if (!IGNORE_FRAMES.hasOwnProperty(frame)) {
            lines.push(trace[i]);
        }
    }
}
function renderLongStackTrace(frames, stack) {
    const longTrace = [stack ? stack.trim() : ''];
    if (frames) {
        let timestamp = new Date().getTime();
        for (let i = 0; i < frames.length; i++) {
            const traceFrames = frames[i];
            const lastTime = traceFrames.timestamp;
            let separator = `____________________Elapsed ${timestamp - lastTime.getTime()} ms; At: ${lastTime}`;
            separator = separator.replace(/[^\w\d]/g, '_');
            longTrace.push(sepTemplate.replace(SEP_TAG, separator));
            addErrorStack(longTrace, traceFrames.error);
            timestamp = lastTime.getTime();
        }
    }
    return longTrace.join(NEWLINE);
}
// if Error.stackTraceLimit is 0, means stack trace
// is disabled, so we don't need to generate long stack trace
// this will improve performance in some test(some test will
// set stackTraceLimit to 0, https://github.com/angular/zone.js/issues/698
function stackTracesEnabled() {
    // Cast through any since this property only exists on Error in the nodejs
    // typings.
    return Error.stackTraceLimit > 0;
}
Zone['longStackTraceZoneSpec'] = {
    name: 'long-stack-trace',
    longStackTraceLimit: 10,
    // add a getLongStackTrace method in spec to
    // handle handled reject promise error.
    getLongStackTrace: function (error) {
        if (!error) {
            return undefined;
        }
        const trace = error[Zone.__symbol__('currentTaskTrace')];
        if (!trace) {
            return error.stack;
        }
        return renderLongStackTrace(trace, error.stack);
    },
    onScheduleTask: function (parentZoneDelegate, currentZone, targetZone, task) {
        if (stackTracesEnabled()) {
            const currentTask = Zone.currentTask;
            let trace = currentTask && currentTask.data && currentTask.data[creationTrace] || [];
            trace = [new LongStackTrace()].concat(trace);
            if (trace.length > this.longStackTraceLimit) {
                trace.length = this.longStackTraceLimit;
            }
            if (!task.data)
                task.data = {};
            if (task.type === 'eventTask') {
                // Fix issue https://github.com/angular/zone.js/issues/1195,
                // For event task of browser, by default, all task will share a
                // singleton instance of data object, we should create a new one here
                // The cast to `any` is required to workaround a closure bug which wrongly applies
                // URL sanitization rules to .data access.
                task.data = { ...task.data };
            }
            task.data[creationTrace] = trace;
        }
        return parentZoneDelegate.scheduleTask(targetZone, task);
    },
    onHandleError: function (parentZoneDelegate, currentZone, targetZone, error) {
        if (stackTracesEnabled()) {
            const parentTask = Zone.currentTask || error.task;
            if (error instanceof Error && parentTask) {
                const longStack = renderLongStackTrace(parentTask.data && parentTask.data[creationTrace], error.stack);
                try {
                    error.stack = error.longStack = longStack;
                }
                catch (err) {
                }
            }
        }
        return parentZoneDelegate.handleError(targetZone, error);
    }
};
function captureStackTraces(stackTraces, count) {
    if (count > 0) {
        stackTraces.push(getFrames((new LongStackTrace()).error));
        captureStackTraces(stackTraces, count - 1);
    }
}
function computeIgnoreFrames() {
    if (!stackTracesEnabled()) {
        return;
    }
    const frames = [];
    captureStackTraces(frames, 2);
    const frames1 = frames[0];
    const frames2 = frames[1];
    for (let i = 0; i < frames1.length; i++) {
        const frame1 = frames1[i];
        if (frame1.indexOf(ERROR_TAG) == -1) {
            let match = frame1.match(/^\s*at\s+/);
            if (match) {
                sepTemplate = match[0] + SEP_TAG + ' (http://localhost)';
                break;
            }
        }
    }
    for (let i = 0; i < frames1.length; i++) {
        const frame1 = frames1[i];
        const frame2 = frames2[i];
        if (frame1 === frame2) {
            IGNORE_FRAMES[frame1] = true;
        }
        else {
            break;
        }
    }
}
computeIgnoreFrames();

class ProxyZoneSpec {
    static get() {
        return Zone.current.get('ProxyZoneSpec');
    }
    static isLoaded() {
        return ProxyZoneSpec.get() instanceof ProxyZoneSpec;
    }
    static assertPresent() {
        if (!ProxyZoneSpec.isLoaded()) {
            throw new Error(`Expected to be running in 'ProxyZone', but it was not found.`);
        }
        return ProxyZoneSpec.get();
    }
    constructor(defaultSpecDelegate = null) {
        this.defaultSpecDelegate = defaultSpecDelegate;
        this.name = 'ProxyZone';
        this._delegateSpec = null;
        this.properties = { 'ProxyZoneSpec': this };
        this.propertyKeys = null;
        this.lastTaskState = null;
        this.isNeedToTriggerHasTask = false;
        this.tasks = [];
        this.setDelegate(defaultSpecDelegate);
    }
    setDelegate(delegateSpec) {
        const isNewDelegate = this._delegateSpec !== delegateSpec;
        this._delegateSpec = delegateSpec;
        this.propertyKeys && this.propertyKeys.forEach((key) => delete this.properties[key]);
        this.propertyKeys = null;
        if (delegateSpec && delegateSpec.properties) {
            this.propertyKeys = Object.keys(delegateSpec.properties);
            this.propertyKeys.forEach((k) => this.properties[k] = delegateSpec.properties[k]);
        }
        // if a new delegateSpec was set, check if we need to trigger hasTask
        if (isNewDelegate && this.lastTaskState &&
            (this.lastTaskState.macroTask || this.lastTaskState.microTask)) {
            this.isNeedToTriggerHasTask = true;
        }
    }
    getDelegate() {
        return this._delegateSpec;
    }
    resetDelegate() {
        this.getDelegate();
        this.setDelegate(this.defaultSpecDelegate);
    }
    tryTriggerHasTask(parentZoneDelegate, currentZone, targetZone) {
        if (this.isNeedToTriggerHasTask && this.lastTaskState) {
            // last delegateSpec has microTask or macroTask
            // should call onHasTask in current delegateSpec
            this.isNeedToTriggerHasTask = false;
            this.onHasTask(parentZoneDelegate, currentZone, targetZone, this.lastTaskState);
        }
    }
    removeFromTasks(task) {
        if (!this.tasks) {
            return;
        }
        for (let i = 0; i < this.tasks.length; i++) {
            if (this.tasks[i] === task) {
                this.tasks.splice(i, 1);
                return;
            }
        }
    }
    getAndClearPendingTasksInfo() {
        if (this.tasks.length === 0) {
            return '';
        }
        const taskInfo = this.tasks.map((task) => {
            const dataInfo = task.data &&
                Object.keys(task.data)
                    .map((key) => {
                    return key + ':' + task.data[key];
                })
                    .join(',');
            return `type: ${task.type}, source: ${task.source}, args: {${dataInfo}}`;
        });
        const pendingTasksInfo = '--Pending async tasks are: [' + taskInfo + ']';
        // clear tasks
        this.tasks = [];
        return pendingTasksInfo;
    }
    onFork(parentZoneDelegate, currentZone, targetZone, zoneSpec) {
        if (this._delegateSpec && this._delegateSpec.onFork) {
            return this._delegateSpec.onFork(parentZoneDelegate, currentZone, targetZone, zoneSpec);
        }
        else {
            return parentZoneDelegate.fork(targetZone, zoneSpec);
        }
    }
    onIntercept(parentZoneDelegate, currentZone, targetZone, delegate, source) {
        if (this._delegateSpec && this._delegateSpec.onIntercept) {
            return this._delegateSpec.onIntercept(parentZoneDelegate, currentZone, targetZone, delegate, source);
        }
        else {
            return parentZoneDelegate.intercept(targetZone, delegate, source);
        }
    }
    onInvoke(parentZoneDelegate, currentZone, targetZone, delegate, applyThis, applyArgs, source) {
        this.tryTriggerHasTask(parentZoneDelegate, currentZone, targetZone);
        if (this._delegateSpec && this._delegateSpec.onInvoke) {
            return this._delegateSpec.onInvoke(parentZoneDelegate, currentZone, targetZone, delegate, applyThis, applyArgs, source);
        }
        else {
            return parentZoneDelegate.invoke(targetZone, delegate, applyThis, applyArgs, source);
        }
    }
    onHandleError(parentZoneDelegate, currentZone, targetZone, error) {
        if (this._delegateSpec && this._delegateSpec.onHandleError) {
            return this._delegateSpec.onHandleError(parentZoneDelegate, currentZone, targetZone, error);
        }
        else {
            return parentZoneDelegate.handleError(targetZone, error);
        }
    }
    onScheduleTask(parentZoneDelegate, currentZone, targetZone, task) {
        if (task.type !== 'eventTask') {
            this.tasks.push(task);
        }
        if (this._delegateSpec && this._delegateSpec.onScheduleTask) {
            return this._delegateSpec.onScheduleTask(parentZoneDelegate, currentZone, targetZone, task);
        }
        else {
            return parentZoneDelegate.scheduleTask(targetZone, task);
        }
    }
    onInvokeTask(parentZoneDelegate, currentZone, targetZone, task, applyThis, applyArgs) {
        if (task.type !== 'eventTask') {
            this.removeFromTasks(task);
        }
        this.tryTriggerHasTask(parentZoneDelegate, currentZone, targetZone);
        if (this._delegateSpec && this._delegateSpec.onInvokeTask) {
            return this._delegateSpec.onInvokeTask(parentZoneDelegate, currentZone, targetZone, task, applyThis, applyArgs);
        }
        else {
            return parentZoneDelegate.invokeTask(targetZone, task, applyThis, applyArgs);
        }
    }
    onCancelTask(parentZoneDelegate, currentZone, targetZone, task) {
        if (task.type !== 'eventTask') {
            this.removeFromTasks(task);
        }
        this.tryTriggerHasTask(parentZoneDelegate, currentZone, targetZone);
        if (this._delegateSpec && this._delegateSpec.onCancelTask) {
            return this._delegateSpec.onCancelTask(parentZoneDelegate, currentZone, targetZone, task);
        }
        else {
            return parentZoneDelegate.cancelTask(targetZone, task);
        }
    }
    onHasTask(delegate, current, target, hasTaskState) {
        this.lastTaskState = hasTaskState;
        if (this._delegateSpec && this._delegateSpec.onHasTask) {
            this._delegateSpec.onHasTask(delegate, current, target, hasTaskState);
        }
        else {
            delegate.hasTask(target, hasTaskState);
        }
    }
}
// Export the class so that new instances can be created with proper
// constructor params.
Zone['ProxyZoneSpec'] = ProxyZoneSpec;

class SyncTestZoneSpec {
    constructor(namePrefix) {
        this.runZone = Zone.current;
        this.name = 'syncTestZone for ' + namePrefix;
    }
    onScheduleTask(delegate, current, target, task) {
        switch (task.type) {
            case 'microTask':
            case 'macroTask':
                throw new Error(`Cannot call ${task.source} from within a sync test (${this.name}).`);
            case 'eventTask':
                task = delegate.scheduleTask(target, task);
                break;
        }
        return task;
    }
}
// Export the class so that new instances can be created with proper
// constructor params.
Zone['SyncTestZoneSpec'] = SyncTestZoneSpec;

/// <reference types="jasmine"/>
Zone.__load_patch('jasmine', (global, Zone, api) => {
    const __extends = function (d, b) {
        for (const p in b)
            if (b.hasOwnProperty(p))
                d[p] = b[p];
        function __() {
            this.constructor = d;
        }
        d.prototype = b === null ? Object.create(b) : ((__.prototype = b.prototype), new __());
    };
    // Patch jasmine's describe/it/beforeEach/afterEach functions so test code always runs
    // in a testZone (ProxyZone). (See: angular/zone.js#91 & angular/angular#10503)
    if (!Zone)
        throw new Error('Missing: zone.js');
    if (typeof jest !== 'undefined') {
        // return if jasmine is a light implementation inside jest
        // in this case, we are running inside jest not jasmine
        return;
    }
    if (typeof jasmine == 'undefined' || jasmine['__zone_patch__']) {
        return;
    }
    jasmine['__zone_patch__'] = true;
    const SyncTestZoneSpec = Zone['SyncTestZoneSpec'];
    const ProxyZoneSpec = Zone['ProxyZoneSpec'];
    if (!SyncTestZoneSpec)
        throw new Error('Missing: SyncTestZoneSpec');
    if (!ProxyZoneSpec)
        throw new Error('Missing: ProxyZoneSpec');
    const ambientZone = Zone.current;
    const symbol = Zone.__symbol__;
    // whether patch jasmine clock when in fakeAsync
    const disablePatchingJasmineClock = global[symbol('fakeAsyncDisablePatchingClock')] === true;
    // the original variable name fakeAsyncPatchLock is not accurate, so the name will be
    // fakeAsyncAutoFakeAsyncWhenClockPatched and if this enablePatchingJasmineClock is false, we also
    // automatically disable the auto jump into fakeAsync feature
    const enableAutoFakeAsyncWhenClockPatched = !disablePatchingJasmineClock &&
        ((global[symbol('fakeAsyncPatchLock')] === true) ||
            (global[symbol('fakeAsyncAutoFakeAsyncWhenClockPatched')] === true));
    const ignoreUnhandledRejection = global[symbol('ignoreUnhandledRejection')] === true;
    if (!ignoreUnhandledRejection) {
        const globalErrors = jasmine.GlobalErrors;
        if (globalErrors && !jasmine[symbol('GlobalErrors')]) {
            jasmine[symbol('GlobalErrors')] = globalErrors;
            jasmine.GlobalErrors = function () {
                const instance = new globalErrors();
                const originalInstall = instance.install;
                if (originalInstall && !instance[symbol('install')]) {
                    instance[symbol('install')] = originalInstall;
                    instance.install = function () {
                        const isNode = typeof process !== 'undefined' && !!process.on;
                        // Note: Jasmine checks internally if `process` and `process.on` is defined. Otherwise,
                        // it installs the browser rejection handler through the `global.addEventListener`.
                        // This code may be run in the browser environment where `process` is not defined, and
                        // this will lead to a runtime exception since Webpack 5 removed automatic Node.js
                        // polyfills. Note, that events are named differently, it's `unhandledRejection` in
                        // Node.js and `unhandledrejection` in the browser.
                        const originalHandlers = isNode ? process.listeners('unhandledRejection') :
                            global.eventListeners('unhandledrejection');
                        const result = originalInstall.apply(this, arguments);
                        isNode ? process.removeAllListeners('unhandledRejection') :
                            global.removeAllListeners('unhandledrejection');
                        if (originalHandlers) {
                            originalHandlers.forEach(handler => {
                                if (isNode) {
                                    process.on('unhandledRejection', handler);
                                }
                                else {
                                    global.addEventListener('unhandledrejection', handler);
                                }
                            });
                        }
                        return result;
                    };
                }
                return instance;
            };
        }
    }
    // Monkey patch all of the jasmine DSL so that each function runs in appropriate zone.
    const jasmineEnv = jasmine.getEnv();
    ['describe', 'xdescribe', 'fdescribe'].forEach(methodName => {
        let originalJasmineFn = jasmineEnv[methodName];
        jasmineEnv[methodName] = function (description, specDefinitions) {
            return originalJasmineFn.call(this, description, wrapDescribeInZone(description, specDefinitions));
        };
    });
    ['it', 'xit', 'fit'].forEach(methodName => {
        let originalJasmineFn = jasmineEnv[methodName];
        jasmineEnv[symbol(methodName)] = originalJasmineFn;
        jasmineEnv[methodName] = function (description, specDefinitions, timeout) {
            arguments[1] = wrapTestInZone(specDefinitions);
            return originalJasmineFn.apply(this, arguments);
        };
    });
    ['beforeEach', 'afterEach', 'beforeAll', 'afterAll'].forEach(methodName => {
        let originalJasmineFn = jasmineEnv[methodName];
        jasmineEnv[symbol(methodName)] = originalJasmineFn;
        jasmineEnv[methodName] = function (specDefinitions, timeout) {
            arguments[0] = wrapTestInZone(specDefinitions);
            return originalJasmineFn.apply(this, arguments);
        };
    });
    if (!disablePatchingJasmineClock) {
        // need to patch jasmine.clock().mockDate and jasmine.clock().tick() so
        // they can work properly in FakeAsyncTest
        const originalClockFn = (jasmine[symbol('clock')] = jasmine['clock']);
        jasmine['clock'] = function () {
            const clock = originalClockFn.apply(this, arguments);
            if (!clock[symbol('patched')]) {
                clock[symbol('patched')] = symbol('patched');
                const originalTick = (clock[symbol('tick')] = clock.tick);
                clock.tick = function () {
                    const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
                    if (fakeAsyncZoneSpec) {
                        return fakeAsyncZoneSpec.tick.apply(fakeAsyncZoneSpec, arguments);
                    }
                    return originalTick.apply(this, arguments);
                };
                const originalMockDate = (clock[symbol('mockDate')] = clock.mockDate);
                clock.mockDate = function () {
                    const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
                    if (fakeAsyncZoneSpec) {
                        const dateTime = arguments.length > 0 ? arguments[0] : new Date();
                        return fakeAsyncZoneSpec.setFakeBaseSystemTime.apply(fakeAsyncZoneSpec, dateTime && typeof dateTime.getTime === 'function' ? [dateTime.getTime()] :
                            arguments);
                    }
                    return originalMockDate.apply(this, arguments);
                };
                // for auto go into fakeAsync feature, we need the flag to enable it
                if (enableAutoFakeAsyncWhenClockPatched) {
                    ['install', 'uninstall'].forEach(methodName => {
                        const originalClockFn = (clock[symbol(methodName)] = clock[methodName]);
                        clock[methodName] = function () {
                            const FakeAsyncTestZoneSpec = Zone['FakeAsyncTestZoneSpec'];
                            if (FakeAsyncTestZoneSpec) {
                                jasmine[symbol('clockInstalled')] = 'install' === methodName;
                                return;
                            }
                            return originalClockFn.apply(this, arguments);
                        };
                    });
                }
            }
            return clock;
        };
    }
    // monkey patch createSpyObj to make properties enumerable to true
    if (!jasmine[Zone.__symbol__('createSpyObj')]) {
        const originalCreateSpyObj = jasmine.createSpyObj;
        jasmine[Zone.__symbol__('createSpyObj')] = originalCreateSpyObj;
        jasmine.createSpyObj = function () {
            const args = Array.prototype.slice.call(arguments);
            const propertyNames = args.length >= 3 ? args[2] : null;
            let spyObj;
            if (propertyNames) {
                const defineProperty = Object.defineProperty;
                Object.defineProperty = function (obj, p, attributes) {
                    return defineProperty.call(this, obj, p, { ...attributes, configurable: true, enumerable: true });
                };
                try {
                    spyObj = originalCreateSpyObj.apply(this, args);
                }
                finally {
                    Object.defineProperty = defineProperty;
                }
            }
            else {
                spyObj = originalCreateSpyObj.apply(this, args);
            }
            return spyObj;
        };
    }
    /**
     * Gets a function wrapping the body of a Jasmine `describe` block to execute in a
     * synchronous-only zone.
     */
    function wrapDescribeInZone(description, describeBody) {
        return function () {
            // Create a synchronous-only zone in which to run `describe` blocks in order to raise an
            // error if any asynchronous operations are attempted inside of a `describe`.
            const syncZone = ambientZone.fork(new SyncTestZoneSpec(`jasmine.describe#${description}`));
            return syncZone.run(describeBody, this, arguments);
        };
    }
    function runInTestZone(testBody, applyThis, queueRunner, done) {
        const isClockInstalled = !!jasmine[symbol('clockInstalled')];
        queueRunner.testProxyZoneSpec;
        const testProxyZone = queueRunner.testProxyZone;
        if (isClockInstalled && enableAutoFakeAsyncWhenClockPatched) {
            // auto run a fakeAsync
            const fakeAsyncModule = Zone[Zone.__symbol__('fakeAsyncTest')];
            if (fakeAsyncModule && typeof fakeAsyncModule.fakeAsync === 'function') {
                testBody = fakeAsyncModule.fakeAsync(testBody);
            }
        }
        if (done) {
            return testProxyZone.run(testBody, applyThis, [done]);
        }
        else {
            return testProxyZone.run(testBody, applyThis);
        }
    }
    /**
     * Gets a function wrapping the body of a Jasmine `it/beforeEach/afterEach` block to
     * execute in a ProxyZone zone.
     * This will run in `testProxyZone`. The `testProxyZone` will be reset by the `ZoneQueueRunner`
     */
    function wrapTestInZone(testBody) {
        // The `done` callback is only passed through if the function expects at least one argument.
        // Note we have to make a function with correct number of arguments, otherwise jasmine will
        // think that all functions are sync or async.
        return (testBody && (testBody.length ? function (done) {
            return runInTestZone(testBody, this, this.queueRunner, done);
        } : function () {
            return runInTestZone(testBody, this, this.queueRunner);
        }));
    }
    const QueueRunner = jasmine.QueueRunner;
    jasmine.QueueRunner = (function (_super) {
        __extends(ZoneQueueRunner, _super);
        function ZoneQueueRunner(attrs) {
            if (attrs.onComplete) {
                attrs.onComplete = (fn => () => {
                    // All functions are done, clear the test zone.
                    this.testProxyZone = null;
                    this.testProxyZoneSpec = null;
                    ambientZone.scheduleMicroTask('jasmine.onComplete', fn);
                })(attrs.onComplete);
            }
            const nativeSetTimeout = global[Zone.__symbol__('setTimeout')];
            const nativeClearTimeout = global[Zone.__symbol__('clearTimeout')];
            if (nativeSetTimeout) {
                // should run setTimeout inside jasmine outside of zone
                attrs.timeout = {
                    setTimeout: nativeSetTimeout ? nativeSetTimeout : global.setTimeout,
                    clearTimeout: nativeClearTimeout ? nativeClearTimeout : global.clearTimeout
                };
            }
            // create a userContext to hold the queueRunner itself
            // so we can access the testProxy in it/xit/beforeEach ...
            if (jasmine.UserContext) {
                if (!attrs.userContext) {
                    attrs.userContext = new jasmine.UserContext();
                }
                attrs.userContext.queueRunner = this;
            }
            else {
                if (!attrs.userContext) {
                    attrs.userContext = {};
                }
                attrs.userContext.queueRunner = this;
            }
            // patch attrs.onException
            const onException = attrs.onException;
            attrs.onException = function (error) {
                if (error &&
                    error.message ===
                        'Timeout - Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL.') {
                    // jasmine timeout, we can make the error message more
                    // reasonable to tell what tasks are pending
                    const proxyZoneSpec = this && this.testProxyZoneSpec;
                    if (proxyZoneSpec) {
                        const pendingTasksInfo = proxyZoneSpec.getAndClearPendingTasksInfo();
                        try {
                            // try catch here in case error.message is not writable
                            error.message += pendingTasksInfo;
                        }
                        catch (err) {
                        }
                    }
                }
                if (onException) {
                    onException.call(this, error);
                }
            };
            _super.call(this, attrs);
        }
        ZoneQueueRunner.prototype.execute = function () {
            let zone = Zone.current;
            let isChildOfAmbientZone = false;
            while (zone) {
                if (zone === ambientZone) {
                    isChildOfAmbientZone = true;
                    break;
                }
                zone = zone.parent;
            }
            if (!isChildOfAmbientZone)
                throw new Error('Unexpected Zone: ' + Zone.current.name);
            // This is the zone which will be used for running individual tests.
            // It will be a proxy zone, so that the tests function can retroactively install
            // different zones.
            // Example:
            //   - In beforeEach() do childZone = Zone.current.fork(...);
            //   - In it() try to do fakeAsync(). The issue is that because the beforeEach forked the
            //     zone outside of fakeAsync it will be able to escape the fakeAsync rules.
            //   - Because ProxyZone is parent fo `childZone` fakeAsync can retroactively add
            //     fakeAsync behavior to the childZone.
            this.testProxyZoneSpec = new ProxyZoneSpec();
            this.testProxyZone = ambientZone.fork(this.testProxyZoneSpec);
            if (!Zone.currentTask) {
                // if we are not running in a task then if someone would register a
                // element.addEventListener and then calling element.click() the
                // addEventListener callback would think that it is the top most task and would
                // drain the microtask queue on element.click() which would be incorrect.
                // For this reason we always force a task when running jasmine tests.
                Zone.current.scheduleMicroTask('jasmine.execute().forceTask', () => QueueRunner.prototype.execute.call(this));
            }
            else {
                _super.prototype.execute.call(this);
            }
        };
        return ZoneQueueRunner;
    })(QueueRunner);
});

Zone.__load_patch('jest', (context, Zone, api) => {
    if (typeof jest === 'undefined' || jest['__zone_patch__']) {
        return;
    }
    jest['__zone_patch__'] = true;
    const ProxyZoneSpec = Zone['ProxyZoneSpec'];
    const SyncTestZoneSpec = Zone['SyncTestZoneSpec'];
    if (!ProxyZoneSpec) {
        throw new Error('Missing ProxyZoneSpec');
    }
    const rootZone = Zone.current;
    const syncZone = rootZone.fork(new SyncTestZoneSpec('jest.describe'));
    const proxyZoneSpec = new ProxyZoneSpec();
    const proxyZone = rootZone.fork(proxyZoneSpec);
    function wrapDescribeFactoryInZone(originalJestFn) {
        return function (...tableArgs) {
            const originalDescribeFn = originalJestFn.apply(this, tableArgs);
            return function (...args) {
                args[1] = wrapDescribeInZone(args[1]);
                return originalDescribeFn.apply(this, args);
            };
        };
    }
    function wrapTestFactoryInZone(originalJestFn) {
        return function (...tableArgs) {
            return function (...args) {
                args[1] = wrapTestInZone(args[1]);
                return originalJestFn.apply(this, tableArgs).apply(this, args);
            };
        };
    }
    /**
     * Gets a function wrapping the body of a jest `describe` block to execute in a
     * synchronous-only zone.
     */
    function wrapDescribeInZone(describeBody) {
        return function (...args) {
            return syncZone.run(describeBody, this, args);
        };
    }
    /**
     * Gets a function wrapping the body of a jest `it/beforeEach/afterEach` block to
     * execute in a ProxyZone zone.
     * This will run in the `proxyZone`.
     */
    function wrapTestInZone(testBody, isTestFunc = false) {
        if (typeof testBody !== 'function') {
            return testBody;
        }
        const wrappedFunc = function () {
            if (Zone[api.symbol('useFakeTimersCalled')] === true && testBody &&
                !testBody.isFakeAsync) {
                // jest.useFakeTimers is called, run into fakeAsyncTest automatically.
                const fakeAsyncModule = Zone[Zone.__symbol__('fakeAsyncTest')];
                if (fakeAsyncModule && typeof fakeAsyncModule.fakeAsync === 'function') {
                    testBody = fakeAsyncModule.fakeAsync(testBody);
                }
            }
            proxyZoneSpec.isTestFunc = isTestFunc;
            return proxyZone.run(testBody, null, arguments);
        };
        // Update the length of wrappedFunc to be the same as the length of the testBody
        // So jest core can handle whether the test function has `done()` or not correctly
        Object.defineProperty(wrappedFunc, 'length', { configurable: true, writable: true, enumerable: false });
        wrappedFunc.length = testBody.length;
        return wrappedFunc;
    }
    ['describe', 'xdescribe', 'fdescribe'].forEach(methodName => {
        let originalJestFn = context[methodName];
        if (context[Zone.__symbol__(methodName)]) {
            return;
        }
        context[Zone.__symbol__(methodName)] = originalJestFn;
        context[methodName] = function (...args) {
            args[1] = wrapDescribeInZone(args[1]);
            return originalJestFn.apply(this, args);
        };
        context[methodName].each = wrapDescribeFactoryInZone(originalJestFn.each);
    });
    context.describe.only = context.fdescribe;
    context.describe.skip = context.xdescribe;
    ['it', 'xit', 'fit', 'test', 'xtest'].forEach(methodName => {
        let originalJestFn = context[methodName];
        if (context[Zone.__symbol__(methodName)]) {
            return;
        }
        context[Zone.__symbol__(methodName)] = originalJestFn;
        context[methodName] = function (...args) {
            args[1] = wrapTestInZone(args[1], true);
            return originalJestFn.apply(this, args);
        };
        context[methodName].each = wrapTestFactoryInZone(originalJestFn.each);
        context[methodName].todo = originalJestFn.todo;
    });
    context.it.only = context.fit;
    context.it.skip = context.xit;
    context.test.only = context.fit;
    context.test.skip = context.xit;
    ['beforeEach', 'afterEach', 'beforeAll', 'afterAll'].forEach(methodName => {
        let originalJestFn = context[methodName];
        if (context[Zone.__symbol__(methodName)]) {
            return;
        }
        context[Zone.__symbol__(methodName)] = originalJestFn;
        context[methodName] = function (...args) {
            args[0] = wrapTestInZone(args[0]);
            return originalJestFn.apply(this, args);
        };
    });
    Zone.patchJestObject = function patchJestObject(Timer, isModern = false) {
        // check whether currently the test is inside fakeAsync()
        function isPatchingFakeTimer() {
            const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
            return !!fakeAsyncZoneSpec;
        }
        // check whether the current function is inside `test/it` or other methods
        // such as `describe/beforeEach`
        function isInTestFunc() {
            const proxyZoneSpec = Zone.current.get('ProxyZoneSpec');
            return proxyZoneSpec && proxyZoneSpec.isTestFunc;
        }
        if (Timer[api.symbol('fakeTimers')]) {
            return;
        }
        Timer[api.symbol('fakeTimers')] = true;
        // patch jest fakeTimer internal method to make sure no console.warn print out
        api.patchMethod(Timer, '_checkFakeTimers', delegate => {
            return function (self, args) {
                if (isPatchingFakeTimer()) {
                    return true;
                }
                else {
                    return delegate.apply(self, args);
                }
            };
        });
        // patch useFakeTimers(), set useFakeTimersCalled flag, and make test auto run into fakeAsync
        api.patchMethod(Timer, 'useFakeTimers', delegate => {
            return function (self, args) {
                Zone[api.symbol('useFakeTimersCalled')] = true;
                if (isModern || isInTestFunc()) {
                    return delegate.apply(self, args);
                }
                return self;
            };
        });
        // patch useRealTimers(), unset useFakeTimers flag
        api.patchMethod(Timer, 'useRealTimers', delegate => {
            return function (self, args) {
                Zone[api.symbol('useFakeTimersCalled')] = false;
                if (isModern || isInTestFunc()) {
                    return delegate.apply(self, args);
                }
                return self;
            };
        });
        // patch setSystemTime(), call setCurrentRealTime() in the fakeAsyncTest
        api.patchMethod(Timer, 'setSystemTime', delegate => {
            return function (self, args) {
                const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
                if (fakeAsyncZoneSpec && isPatchingFakeTimer()) {
                    fakeAsyncZoneSpec.setFakeBaseSystemTime(args[0]);
                }
                else {
                    return delegate.apply(self, args);
                }
            };
        });
        // patch getSystemTime(), call getCurrentRealTime() in the fakeAsyncTest
        api.patchMethod(Timer, 'getRealSystemTime', delegate => {
            return function (self, args) {
                const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
                if (fakeAsyncZoneSpec && isPatchingFakeTimer()) {
                    return fakeAsyncZoneSpec.getRealSystemTime();
                }
                else {
                    return delegate.apply(self, args);
                }
            };
        });
        // patch runAllTicks(), run all microTasks inside fakeAsync
        api.patchMethod(Timer, 'runAllTicks', delegate => {
            return function (self, args) {
                const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
                if (fakeAsyncZoneSpec) {
                    fakeAsyncZoneSpec.flushMicrotasks();
                }
                else {
                    return delegate.apply(self, args);
                }
            };
        });
        // patch runAllTimers(), run all macroTasks inside fakeAsync
        api.patchMethod(Timer, 'runAllTimers', delegate => {
            return function (self, args) {
                const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
                if (fakeAsyncZoneSpec) {
                    fakeAsyncZoneSpec.flush(100, true);
                }
                else {
                    return delegate.apply(self, args);
                }
            };
        });
        // patch advanceTimersByTime(), call tick() in the fakeAsyncTest
        api.patchMethod(Timer, 'advanceTimersByTime', delegate => {
            return function (self, args) {
                const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
                if (fakeAsyncZoneSpec) {
                    fakeAsyncZoneSpec.tick(args[0]);
                }
                else {
                    return delegate.apply(self, args);
                }
            };
        });
        // patch runOnlyPendingTimers(), call flushOnlyPendingTimers() in the fakeAsyncTest
        api.patchMethod(Timer, 'runOnlyPendingTimers', delegate => {
            return function (self, args) {
                const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
                if (fakeAsyncZoneSpec) {
                    fakeAsyncZoneSpec.flushOnlyPendingTimers();
                }
                else {
                    return delegate.apply(self, args);
                }
            };
        });
        // patch advanceTimersToNextTimer(), call tickToNext() in the fakeAsyncTest
        api.patchMethod(Timer, 'advanceTimersToNextTimer', delegate => {
            return function (self, args) {
                const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
                if (fakeAsyncZoneSpec) {
                    fakeAsyncZoneSpec.tickToNext(args[0]);
                }
                else {
                    return delegate.apply(self, args);
                }
            };
        });
        // patch clearAllTimers(), call removeAllTimers() in the fakeAsyncTest
        api.patchMethod(Timer, 'clearAllTimers', delegate => {
            return function (self, args) {
                const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
                if (fakeAsyncZoneSpec) {
                    fakeAsyncZoneSpec.removeAllTimers();
                }
                else {
                    return delegate.apply(self, args);
                }
            };
        });
        // patch getTimerCount(), call getTimerCount() in the fakeAsyncTest
        api.patchMethod(Timer, 'getTimerCount', delegate => {
            return function (self, args) {
                const fakeAsyncZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
                if (fakeAsyncZoneSpec) {
                    return fakeAsyncZoneSpec.getTimerCount();
                }
                else {
                    return delegate.apply(self, args);
                }
            };
        });
    };
});

Zone.__load_patch('mocha', (global, Zone) => {
    const Mocha = global.Mocha;
    if (typeof Mocha === 'undefined') {
        // return if Mocha is not available, because now zone-testing
        // will load mocha patch with jasmine/jest patch
        return;
    }
    if (typeof Zone === 'undefined') {
        throw new Error('Missing Zone.js');
    }
    const ProxyZoneSpec = Zone['ProxyZoneSpec'];
    const SyncTestZoneSpec = Zone['SyncTestZoneSpec'];
    if (!ProxyZoneSpec) {
        throw new Error('Missing ProxyZoneSpec');
    }
    if (Mocha['__zone_patch__']) {
        throw new Error('"Mocha" has already been patched with "Zone".');
    }
    Mocha['__zone_patch__'] = true;
    const rootZone = Zone.current;
    const syncZone = rootZone.fork(new SyncTestZoneSpec('Mocha.describe'));
    let testZone = null;
    const suiteZone = rootZone.fork(new ProxyZoneSpec());
    const mochaOriginal = {
        after: global.after,
        afterEach: global.afterEach,
        before: global.before,
        beforeEach: global.beforeEach,
        describe: global.describe,
        it: global.it
    };
    function modifyArguments(args, syncTest, asyncTest) {
        for (let i = 0; i < args.length; i++) {
            let arg = args[i];
            if (typeof arg === 'function') {
                // The `done` callback is only passed through if the function expects at
                // least one argument.
                // Note we have to make a function with correct number of arguments,
                // otherwise mocha will
                // think that all functions are sync or async.
                args[i] = (arg.length === 0) ? syncTest(arg) : asyncTest(arg);
                // Mocha uses toString to view the test body in the result list, make sure we return the
                // correct function body
                args[i].toString = function () {
                    return arg.toString();
                };
            }
        }
        return args;
    }
    function wrapDescribeInZone(args) {
        const syncTest = function (fn) {
            return function () {
                return syncZone.run(fn, this, arguments);
            };
        };
        return modifyArguments(args, syncTest);
    }
    function wrapTestInZone(args) {
        const asyncTest = function (fn) {
            return function (done) {
                return testZone.run(fn, this, [done]);
            };
        };
        const syncTest = function (fn) {
            return function () {
                return testZone.run(fn, this);
            };
        };
        return modifyArguments(args, syncTest, asyncTest);
    }
    function wrapSuiteInZone(args) {
        const asyncTest = function (fn) {
            return function (done) {
                return suiteZone.run(fn, this, [done]);
            };
        };
        const syncTest = function (fn) {
            return function () {
                return suiteZone.run(fn, this);
            };
        };
        return modifyArguments(args, syncTest, asyncTest);
    }
    global.describe = global.suite = function () {
        return mochaOriginal.describe.apply(this, wrapDescribeInZone(arguments));
    };
    global.xdescribe = global.suite.skip = function () {
        return mochaOriginal.describe.skip.apply(this, wrapDescribeInZone(arguments));
    };
    global.describe.only = global.suite.only = function () {
        return mochaOriginal.describe.only.apply(this, wrapDescribeInZone(arguments));
    };
    global.it = global.specify = global.test = function () {
        return mochaOriginal.it.apply(this, wrapTestInZone(arguments));
    };
    global.xit = global.xspecify = function () {
        return mochaOriginal.it.skip.apply(this, wrapTestInZone(arguments));
    };
    global.it.only = global.test.only = function () {
        return mochaOriginal.it.only.apply(this, wrapTestInZone(arguments));
    };
    global.after = global.suiteTeardown = function () {
        return mochaOriginal.after.apply(this, wrapSuiteInZone(arguments));
    };
    global.afterEach = global.teardown = function () {
        return mochaOriginal.afterEach.apply(this, wrapTestInZone(arguments));
    };
    global.before = global.suiteSetup = function () {
        return mochaOriginal.before.apply(this, wrapSuiteInZone(arguments));
    };
    global.beforeEach = global.setup = function () {
        return mochaOriginal.beforeEach.apply(this, wrapTestInZone(arguments));
    };
    ((originalRunTest, originalRun) => {
        Mocha.Runner.prototype.runTest = function (fn) {
            Zone.current.scheduleMicroTask('mocha.forceTask', () => {
                originalRunTest.call(this, fn);
            });
        };
        Mocha.Runner.prototype.run = function (fn) {
            this.on('test', (e) => {
                testZone = rootZone.fork(new ProxyZoneSpec());
            });
            this.on('fail', (test, err) => {
                const proxyZoneSpec = testZone && testZone.get('ProxyZoneSpec');
                if (proxyZoneSpec && err) {
                    try {
                        // try catch here in case err.message is not writable
                        err.message += proxyZoneSpec.getAndClearPendingTasksInfo();
                    }
                    catch (error) {
                    }
                }
            });
            return originalRun.call(this, fn);
        };
    })(Mocha.Runner.prototype.runTest, Mocha.Runner.prototype.run);
});

(function (_global) {
    class AsyncTestZoneSpec {
        constructor(finishCallback, failCallback, namePrefix) {
            this.finishCallback = finishCallback;
            this.failCallback = failCallback;
            this._pendingMicroTasks = false;
            this._pendingMacroTasks = false;
            this._alreadyErrored = false;
            this._isSync = false;
            this._existingFinishTimer = null;
            this.entryFunction = null;
            this.runZone = Zone.current;
            this.unresolvedChainedPromiseCount = 0;
            this.supportWaitUnresolvedChainedPromise = false;
            this.name = 'asyncTestZone for ' + namePrefix;
            this.properties = { 'AsyncTestZoneSpec': this };
            this.supportWaitUnresolvedChainedPromise =
                _global[Zone.__symbol__('supportWaitUnResolvedChainedPromise')] === true;
        }
        isUnresolvedChainedPromisePending() {
            return this.unresolvedChainedPromiseCount > 0;
        }
        _finishCallbackIfDone() {
            // NOTE: Technically the `onHasTask` could fire together with the initial synchronous
            // completion in `onInvoke`. `onHasTask` might call this method when it captured e.g.
            // microtasks in the proxy zone that now complete as part of this async zone run.
            // Consider the following scenario:
            //    1. A test `beforeEach` schedules a microtask in the ProxyZone.
            //    2. An actual empty `it` spec executes in the AsyncTestZone` (using e.g. `waitForAsync`).
            //    3. The `onInvoke` invokes `_finishCallbackIfDone` because the spec runs synchronously.
            //    4. We wait the scheduled timeout (see below) to account for unhandled promises.
            //    5. The microtask from (1) finishes and `onHasTask` is invoked.
            //    --> We register a second `_finishCallbackIfDone` even though we have scheduled a timeout.
            // If the finish timeout from below is already scheduled, terminate the existing scheduled
            // finish invocation, avoiding calling `jasmine` `done` multiple times. *Note* that we would
            // want to schedule a new finish callback in case the task state changes again.
            if (this._existingFinishTimer !== null) {
                clearTimeout(this._existingFinishTimer);
                this._existingFinishTimer = null;
            }
            if (!(this._pendingMicroTasks || this._pendingMacroTasks ||
                (this.supportWaitUnresolvedChainedPromise && this.isUnresolvedChainedPromisePending()))) {
                // We wait until the next tick because we would like to catch unhandled promises which could
                // cause test logic to be executed. In such cases we cannot finish with tasks pending then.
                this.runZone.run(() => {
                    this._existingFinishTimer = setTimeout(() => {
                        if (!this._alreadyErrored && !(this._pendingMicroTasks || this._pendingMacroTasks)) {
                            this.finishCallback();
                        }
                    }, 0);
                });
            }
        }
        patchPromiseForTest() {
            if (!this.supportWaitUnresolvedChainedPromise) {
                return;
            }
            const patchPromiseForTest = Promise[Zone.__symbol__('patchPromiseForTest')];
            if (patchPromiseForTest) {
                patchPromiseForTest();
            }
        }
        unPatchPromiseForTest() {
            if (!this.supportWaitUnresolvedChainedPromise) {
                return;
            }
            const unPatchPromiseForTest = Promise[Zone.__symbol__('unPatchPromiseForTest')];
            if (unPatchPromiseForTest) {
                unPatchPromiseForTest();
            }
        }
        onScheduleTask(delegate, current, target, task) {
            if (task.type !== 'eventTask') {
                this._isSync = false;
            }
            if (task.type === 'microTask' && task.data && task.data instanceof Promise) {
                // check whether the promise is a chained promise
                if (task.data[AsyncTestZoneSpec.symbolParentUnresolved] === true) {
                    // chained promise is being scheduled
                    this.unresolvedChainedPromiseCount--;
                }
            }
            return delegate.scheduleTask(target, task);
        }
        onInvokeTask(delegate, current, target, task, applyThis, applyArgs) {
            if (task.type !== 'eventTask') {
                this._isSync = false;
            }
            return delegate.invokeTask(target, task, applyThis, applyArgs);
        }
        onCancelTask(delegate, current, target, task) {
            if (task.type !== 'eventTask') {
                this._isSync = false;
            }
            return delegate.cancelTask(target, task);
        }
        // Note - we need to use onInvoke at the moment to call finish when a test is
        // fully synchronous. TODO(juliemr): remove this when the logic for
        // onHasTask changes and it calls whenever the task queues are dirty.
        // updated by(JiaLiPassion), only call finish callback when no task
        // was scheduled/invoked/canceled.
        onInvoke(parentZoneDelegate, currentZone, targetZone, delegate, applyThis, applyArgs, source) {
            if (!this.entryFunction) {
                this.entryFunction = delegate;
            }
            try {
                this._isSync = true;
                return parentZoneDelegate.invoke(targetZone, delegate, applyThis, applyArgs, source);
            }
            finally {
                // We need to check the delegate is the same as entryFunction or not.
                // Consider the following case.
                //
                // asyncTestZone.run(() => { // Here the delegate will be the entryFunction
                //   Zone.current.run(() => { // Here the delegate will not be the entryFunction
                //   });
                // });
                //
                // We only want to check whether there are async tasks scheduled
                // for the entry function.
                if (this._isSync && this.entryFunction === delegate) {
                    this._finishCallbackIfDone();
                }
            }
        }
        onHandleError(parentZoneDelegate, currentZone, targetZone, error) {
            // Let the parent try to handle the error.
            const result = parentZoneDelegate.handleError(targetZone, error);
            if (result) {
                this.failCallback(error);
                this._alreadyErrored = true;
            }
            return false;
        }
        onHasTask(delegate, current, target, hasTaskState) {
            delegate.hasTask(target, hasTaskState);
            // We should only trigger finishCallback when the target zone is the AsyncTestZone
            // Consider the following cases.
            //
            // const childZone = asyncTestZone.fork({
            //   name: 'child',
            //   onHasTask: ...
            // });
            //
            // So we have nested zones declared the onHasTask hook, in this case,
            // the onHasTask will be triggered twice, and cause the finishCallbackIfDone()
            // is also be invoked twice. So we need to only trigger the finishCallbackIfDone()
            // when the current zone is the same as the target zone.
            if (current !== target) {
                return;
            }
            if (hasTaskState.change == 'microTask') {
                this._pendingMicroTasks = hasTaskState.microTask;
                this._finishCallbackIfDone();
            }
            else if (hasTaskState.change == 'macroTask') {
                this._pendingMacroTasks = hasTaskState.macroTask;
                this._finishCallbackIfDone();
            }
        }
    }
    AsyncTestZoneSpec.symbolParentUnresolved = Zone.__symbol__('parentUnresolved');
    // Export the class so that new instances can be created with proper
    // constructor params.
    Zone['AsyncTestZoneSpec'] = AsyncTestZoneSpec;
})(typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global);
Zone.__load_patch('asynctest', (global, Zone, api) => {
    /**
     * Wraps a test function in an asynchronous test zone. The test will automatically
     * complete when all asynchronous calls within this zone are done.
     */
    Zone[api.symbol('asyncTest')] = function asyncTest(fn) {
        // If we're running using the Jasmine test framework, adapt to call the 'done'
        // function when asynchronous activity is finished.
        if (global.jasmine) {
            // Not using an arrow function to preserve context passed from call site
            return function (done) {
                if (!done) {
                    // if we run beforeEach in @angular/core/testing/testing_internal then we get no done
                    // fake it here and assume sync.
                    done = function () { };
                    done.fail = function (e) {
                        throw e;
                    };
                }
                runInTestZone(fn, this, done, (err) => {
                    if (typeof err === 'string') {
                        return done.fail(new Error(err));
                    }
                    else {
                        done.fail(err);
                    }
                });
            };
        }
        // Otherwise, return a promise which will resolve when asynchronous activity
        // is finished. This will be correctly consumed by the Mocha framework with
        // it('...', async(myFn)); or can be used in a custom framework.
        // Not using an arrow function to preserve context passed from call site
        return function () {
            return new Promise((finishCallback, failCallback) => {
                runInTestZone(fn, this, finishCallback, failCallback);
            });
        };
    };
    function runInTestZone(fn, context, finishCallback, failCallback) {
        const currentZone = Zone.current;
        const AsyncTestZoneSpec = Zone['AsyncTestZoneSpec'];
        if (AsyncTestZoneSpec === undefined) {
            throw new Error('AsyncTestZoneSpec is needed for the async() test helper but could not be found. ' +
                'Please make sure that your environment includes zone.js/plugins/async-test');
        }
        const ProxyZoneSpec = Zone['ProxyZoneSpec'];
        if (!ProxyZoneSpec) {
            throw new Error('ProxyZoneSpec is needed for the async() test helper but could not be found. ' +
                'Please make sure that your environment includes zone.js/plugins/proxy');
        }
        const proxyZoneSpec = ProxyZoneSpec.get();
        ProxyZoneSpec.assertPresent();
        // We need to create the AsyncTestZoneSpec outside the ProxyZone.
        // If we do it in ProxyZone then we will get to infinite recursion.
        const proxyZone = Zone.current.getZoneWith('ProxyZoneSpec');
        const previousDelegate = proxyZoneSpec.getDelegate();
        proxyZone.parent.run(() => {
            const testZoneSpec = new AsyncTestZoneSpec(() => {
                // Need to restore the original zone.
                if (proxyZoneSpec.getDelegate() == testZoneSpec) {
                    // Only reset the zone spec if it's
                    // still this one. Otherwise, assume
                    // it's OK.
                    proxyZoneSpec.setDelegate(previousDelegate);
                }
                testZoneSpec.unPatchPromiseForTest();
                currentZone.run(() => {
                    finishCallback();
                });
            }, (error) => {
                // Need to restore the original zone.
                if (proxyZoneSpec.getDelegate() == testZoneSpec) {
                    // Only reset the zone spec if it's sill this one. Otherwise, assume it's OK.
                    proxyZoneSpec.setDelegate(previousDelegate);
                }
                testZoneSpec.unPatchPromiseForTest();
                currentZone.run(() => {
                    failCallback(error);
                });
            }, 'test');
            proxyZoneSpec.setDelegate(testZoneSpec);
            testZoneSpec.patchPromiseForTest();
        });
        return Zone.current.runGuarded(fn, context);
    }
});

(function (global) {
    const OriginalDate = global.Date;
    // Since when we compile this file to `es2015`, and if we define
    // this `FakeDate` as `class FakeDate`, and then set `FakeDate.prototype`
    // there will be an error which is `Cannot assign to read only property 'prototype'`
    // so we need to use function implementation here.
    function FakeDate() {
        if (arguments.length === 0) {
            const d = new OriginalDate();
            d.setTime(FakeDate.now());
            return d;
        }
        else {
            const args = Array.prototype.slice.call(arguments);
            return new OriginalDate(...args);
        }
    }
    FakeDate.now = function () {
        const fakeAsyncTestZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
        if (fakeAsyncTestZoneSpec) {
            return fakeAsyncTestZoneSpec.getFakeSystemTime();
        }
        return OriginalDate.now.apply(this, arguments);
    };
    FakeDate.UTC = OriginalDate.UTC;
    FakeDate.parse = OriginalDate.parse;
    // keep a reference for zone patched timer function
    const timers = {
        setTimeout: global.setTimeout,
        setInterval: global.setInterval,
        clearTimeout: global.clearTimeout,
        clearInterval: global.clearInterval
    };
    class Scheduler {
        constructor() {
            // Scheduler queue with the tuple of end time and callback function - sorted by end time.
            this._schedulerQueue = [];
            // Current simulated time in millis.
            this._currentTickTime = 0;
            // Current fake system base time in millis.
            this._currentFakeBaseSystemTime = OriginalDate.now();
            // track requeuePeriodicTimer
            this._currentTickRequeuePeriodicEntries = [];
        }
        getCurrentTickTime() {
            return this._currentTickTime;
        }
        getFakeSystemTime() {
            return this._currentFakeBaseSystemTime + this._currentTickTime;
        }
        setFakeBaseSystemTime(fakeBaseSystemTime) {
            this._currentFakeBaseSystemTime = fakeBaseSystemTime;
        }
        getRealSystemTime() {
            return OriginalDate.now();
        }
        scheduleFunction(cb, delay, options) {
            options = {
                ...{
                    args: [],
                    isPeriodic: false,
                    isRequestAnimationFrame: false,
                    id: -1,
                    isRequeuePeriodic: false
                },
                ...options
            };
            let currentId = options.id < 0 ? Scheduler.nextId++ : options.id;
            let endTime = this._currentTickTime + delay;
            // Insert so that scheduler queue remains sorted by end time.
            let newEntry = {
                endTime: endTime,
                id: currentId,
                func: cb,
                args: options.args,
                delay: delay,
                isPeriodic: options.isPeriodic,
                isRequestAnimationFrame: options.isRequestAnimationFrame
            };
            if (options.isRequeuePeriodic) {
                this._currentTickRequeuePeriodicEntries.push(newEntry);
            }
            let i = 0;
            for (; i < this._schedulerQueue.length; i++) {
                let currentEntry = this._schedulerQueue[i];
                if (newEntry.endTime < currentEntry.endTime) {
                    break;
                }
            }
            this._schedulerQueue.splice(i, 0, newEntry);
            return currentId;
        }
        removeScheduledFunctionWithId(id) {
            for (let i = 0; i < this._schedulerQueue.length; i++) {
                if (this._schedulerQueue[i].id == id) {
                    this._schedulerQueue.splice(i, 1);
                    break;
                }
            }
        }
        removeAll() {
            this._schedulerQueue = [];
        }
        getTimerCount() {
            return this._schedulerQueue.length;
        }
        tickToNext(step = 1, doTick, tickOptions) {
            if (this._schedulerQueue.length < step) {
                return;
            }
            // Find the last task currently queued in the scheduler queue and tick
            // till that time.
            const startTime = this._currentTickTime;
            const targetTask = this._schedulerQueue[step - 1];
            this.tick(targetTask.endTime - startTime, doTick, tickOptions);
        }
        tick(millis = 0, doTick, tickOptions) {
            let finalTime = this._currentTickTime + millis;
            let lastCurrentTime = 0;
            tickOptions = Object.assign({ processNewMacroTasksSynchronously: true }, tickOptions);
            // we need to copy the schedulerQueue so nested timeout
            // will not be wrongly called in the current tick
            // https://github.com/angular/angular/issues/33799
            const schedulerQueue = tickOptions.processNewMacroTasksSynchronously ?
                this._schedulerQueue :
                this._schedulerQueue.slice();
            if (schedulerQueue.length === 0 && doTick) {
                doTick(millis);
                return;
            }
            while (schedulerQueue.length > 0) {
                // clear requeueEntries before each loop
                this._currentTickRequeuePeriodicEntries = [];
                let current = schedulerQueue[0];
                if (finalTime < current.endTime) {
                    // Done processing the queue since it's sorted by endTime.
                    break;
                }
                else {
                    // Time to run scheduled function. Remove it from the head of queue.
                    let current = schedulerQueue.shift();
                    if (!tickOptions.processNewMacroTasksSynchronously) {
                        const idx = this._schedulerQueue.indexOf(current);
                        if (idx >= 0) {
                            this._schedulerQueue.splice(idx, 1);
                        }
                    }
                    lastCurrentTime = this._currentTickTime;
                    this._currentTickTime = current.endTime;
                    if (doTick) {
                        doTick(this._currentTickTime - lastCurrentTime);
                    }
                    let retval = current.func.apply(global, current.isRequestAnimationFrame ? [this._currentTickTime] : current.args);
                    if (!retval) {
                        // Uncaught exception in the current scheduled function. Stop processing the queue.
                        break;
                    }
                    // check is there any requeue periodic entry is added in
                    // current loop, if there is, we need to add to current loop
                    if (!tickOptions.processNewMacroTasksSynchronously) {
                        this._currentTickRequeuePeriodicEntries.forEach(newEntry => {
                            let i = 0;
                            for (; i < schedulerQueue.length; i++) {
                                const currentEntry = schedulerQueue[i];
                                if (newEntry.endTime < currentEntry.endTime) {
                                    break;
                                }
                            }
                            schedulerQueue.splice(i, 0, newEntry);
                        });
                    }
                }
            }
            lastCurrentTime = this._currentTickTime;
            this._currentTickTime = finalTime;
            if (doTick) {
                doTick(this._currentTickTime - lastCurrentTime);
            }
        }
        flushOnlyPendingTimers(doTick) {
            if (this._schedulerQueue.length === 0) {
                return 0;
            }
            // Find the last task currently queued in the scheduler queue and tick
            // till that time.
            const startTime = this._currentTickTime;
            const lastTask = this._schedulerQueue[this._schedulerQueue.length - 1];
            this.tick(lastTask.endTime - startTime, doTick, { processNewMacroTasksSynchronously: false });
            return this._currentTickTime - startTime;
        }
        flush(limit = 20, flushPeriodic = false, doTick) {
            if (flushPeriodic) {
                return this.flushPeriodic(doTick);
            }
            else {
                return this.flushNonPeriodic(limit, doTick);
            }
        }
        flushPeriodic(doTick) {
            if (this._schedulerQueue.length === 0) {
                return 0;
            }
            // Find the last task currently queued in the scheduler queue and tick
            // till that time.
            const startTime = this._currentTickTime;
            const lastTask = this._schedulerQueue[this._schedulerQueue.length - 1];
            this.tick(lastTask.endTime - startTime, doTick);
            return this._currentTickTime - startTime;
        }
        flushNonPeriodic(limit, doTick) {
            const startTime = this._currentTickTime;
            let lastCurrentTime = 0;
            let count = 0;
            while (this._schedulerQueue.length > 0) {
                count++;
                if (count > limit) {
                    throw new Error('flush failed after reaching the limit of ' + limit +
                        ' tasks. Does your code use a polling timeout?');
                }
                // flush only non-periodic timers.
                // If the only remaining tasks are periodic(or requestAnimationFrame), finish flushing.
                if (this._schedulerQueue.filter(task => !task.isPeriodic && !task.isRequestAnimationFrame)
                    .length === 0) {
                    break;
                }
                const current = this._schedulerQueue.shift();
                lastCurrentTime = this._currentTickTime;
                this._currentTickTime = current.endTime;
                if (doTick) {
                    // Update any secondary schedulers like Jasmine mock Date.
                    doTick(this._currentTickTime - lastCurrentTime);
                }
                const retval = current.func.apply(global, current.args);
                if (!retval) {
                    // Uncaught exception in the current scheduled function. Stop processing the queue.
                    break;
                }
            }
            return this._currentTickTime - startTime;
        }
    }
    // Next scheduler id.
    Scheduler.nextId = 1;
    class FakeAsyncTestZoneSpec {
        static assertInZone() {
            if (Zone.current.get('FakeAsyncTestZoneSpec') == null) {
                throw new Error('The code should be running in the fakeAsync zone to call this function');
            }
        }
        constructor(namePrefix, trackPendingRequestAnimationFrame = false, macroTaskOptions) {
            this.trackPendingRequestAnimationFrame = trackPendingRequestAnimationFrame;
            this.macroTaskOptions = macroTaskOptions;
            this._scheduler = new Scheduler();
            this._microtasks = [];
            this._lastError = null;
            this._uncaughtPromiseErrors = Promise[Zone.__symbol__('uncaughtPromiseErrors')];
            this.pendingPeriodicTimers = [];
            this.pendingTimers = [];
            this.patchDateLocked = false;
            this.properties = { 'FakeAsyncTestZoneSpec': this };
            this.name = 'fakeAsyncTestZone for ' + namePrefix;
            // in case user can't access the construction of FakeAsyncTestSpec
            // user can also define macroTaskOptions by define a global variable.
            if (!this.macroTaskOptions) {
                this.macroTaskOptions = global[Zone.__symbol__('FakeAsyncTestMacroTask')];
            }
        }
        _fnAndFlush(fn, completers) {
            return (...args) => {
                fn.apply(global, args);
                if (this._lastError === null) { // Success
                    if (completers.onSuccess != null) {
                        completers.onSuccess.apply(global);
                    }
                    // Flush microtasks only on success.
                    this.flushMicrotasks();
                }
                else { // Failure
                    if (completers.onError != null) {
                        completers.onError.apply(global);
                    }
                }
                // Return true if there were no errors, false otherwise.
                return this._lastError === null;
            };
        }
        static _removeTimer(timers, id) {
            let index = timers.indexOf(id);
            if (index > -1) {
                timers.splice(index, 1);
            }
        }
        _dequeueTimer(id) {
            return () => {
                FakeAsyncTestZoneSpec._removeTimer(this.pendingTimers, id);
            };
        }
        _requeuePeriodicTimer(fn, interval, args, id) {
            return () => {
                // Requeue the timer callback if it's not been canceled.
                if (this.pendingPeriodicTimers.indexOf(id) !== -1) {
                    this._scheduler.scheduleFunction(fn, interval, { args, isPeriodic: true, id, isRequeuePeriodic: true });
                }
            };
        }
        _dequeuePeriodicTimer(id) {
            return () => {
                FakeAsyncTestZoneSpec._removeTimer(this.pendingPeriodicTimers, id);
            };
        }
        _setTimeout(fn, delay, args, isTimer = true) {
            let removeTimerFn = this._dequeueTimer(Scheduler.nextId);
            // Queue the callback and dequeue the timer on success and error.
            let cb = this._fnAndFlush(fn, { onSuccess: removeTimerFn, onError: removeTimerFn });
            let id = this._scheduler.scheduleFunction(cb, delay, { args, isRequestAnimationFrame: !isTimer });
            if (isTimer) {
                this.pendingTimers.push(id);
            }
            return id;
        }
        _clearTimeout(id) {
            FakeAsyncTestZoneSpec._removeTimer(this.pendingTimers, id);
            this._scheduler.removeScheduledFunctionWithId(id);
        }
        _setInterval(fn, interval, args) {
            let id = Scheduler.nextId;
            let completers = { onSuccess: null, onError: this._dequeuePeriodicTimer(id) };
            let cb = this._fnAndFlush(fn, completers);
            // Use the callback created above to requeue on success.
            completers.onSuccess = this._requeuePeriodicTimer(cb, interval, args, id);
            // Queue the callback and dequeue the periodic timer only on error.
            this._scheduler.scheduleFunction(cb, interval, { args, isPeriodic: true });
            this.pendingPeriodicTimers.push(id);
            return id;
        }
        _clearInterval(id) {
            FakeAsyncTestZoneSpec._removeTimer(this.pendingPeriodicTimers, id);
            this._scheduler.removeScheduledFunctionWithId(id);
        }
        _resetLastErrorAndThrow() {
            let error = this._lastError || this._uncaughtPromiseErrors[0];
            this._uncaughtPromiseErrors.length = 0;
            this._lastError = null;
            throw error;
        }
        getCurrentTickTime() {
            return this._scheduler.getCurrentTickTime();
        }
        getFakeSystemTime() {
            return this._scheduler.getFakeSystemTime();
        }
        setFakeBaseSystemTime(realTime) {
            this._scheduler.setFakeBaseSystemTime(realTime);
        }
        getRealSystemTime() {
            return this._scheduler.getRealSystemTime();
        }
        static patchDate() {
            if (!!global[Zone.__symbol__('disableDatePatching')]) {
                // we don't want to patch global Date
                // because in some case, global Date
                // is already being patched, we need to provide
                // an option to let user still use their
                // own version of Date.
                return;
            }
            if (global['Date'] === FakeDate) {
                // already patched
                return;
            }
            global['Date'] = FakeDate;
            FakeDate.prototype = OriginalDate.prototype;
            // try check and reset timers
            // because jasmine.clock().install() may
            // have replaced the global timer
            FakeAsyncTestZoneSpec.checkTimerPatch();
        }
        static resetDate() {
            if (global['Date'] === FakeDate) {
                global['Date'] = OriginalDate;
            }
        }
        static checkTimerPatch() {
            if (global.setTimeout !== timers.setTimeout) {
                global.setTimeout = timers.setTimeout;
                global.clearTimeout = timers.clearTimeout;
            }
            if (global.setInterval !== timers.setInterval) {
                global.setInterval = timers.setInterval;
                global.clearInterval = timers.clearInterval;
            }
        }
        lockDatePatch() {
            this.patchDateLocked = true;
            FakeAsyncTestZoneSpec.patchDate();
        }
        unlockDatePatch() {
            this.patchDateLocked = false;
            FakeAsyncTestZoneSpec.resetDate();
        }
        tickToNext(steps = 1, doTick, tickOptions = { processNewMacroTasksSynchronously: true }) {
            if (steps <= 0) {
                return;
            }
            FakeAsyncTestZoneSpec.assertInZone();
            this.flushMicrotasks();
            this._scheduler.tickToNext(steps, doTick, tickOptions);
            if (this._lastError !== null) {
                this._resetLastErrorAndThrow();
            }
        }
        tick(millis = 0, doTick, tickOptions = { processNewMacroTasksSynchronously: true }) {
            FakeAsyncTestZoneSpec.assertInZone();
            this.flushMicrotasks();
            this._scheduler.tick(millis, doTick, tickOptions);
            if (this._lastError !== null) {
                this._resetLastErrorAndThrow();
            }
        }
        flushMicrotasks() {
            FakeAsyncTestZoneSpec.assertInZone();
            const flushErrors = () => {
                if (this._lastError !== null || this._uncaughtPromiseErrors.length) {
                    // If there is an error stop processing the microtask queue and rethrow the error.
                    this._resetLastErrorAndThrow();
                }
            };
            while (this._microtasks.length > 0) {
                let microtask = this._microtasks.shift();
                microtask.func.apply(microtask.target, microtask.args);
            }
            flushErrors();
        }
        flush(limit, flushPeriodic, doTick) {
            FakeAsyncTestZoneSpec.assertInZone();
            this.flushMicrotasks();
            const elapsed = this._scheduler.flush(limit, flushPeriodic, doTick);
            if (this._lastError !== null) {
                this._resetLastErrorAndThrow();
            }
            return elapsed;
        }
        flushOnlyPendingTimers(doTick) {
            FakeAsyncTestZoneSpec.assertInZone();
            this.flushMicrotasks();
            const elapsed = this._scheduler.flushOnlyPendingTimers(doTick);
            if (this._lastError !== null) {
                this._resetLastErrorAndThrow();
            }
            return elapsed;
        }
        removeAllTimers() {
            FakeAsyncTestZoneSpec.assertInZone();
            this._scheduler.removeAll();
            this.pendingPeriodicTimers = [];
            this.pendingTimers = [];
        }
        getTimerCount() {
            return this._scheduler.getTimerCount() + this._microtasks.length;
        }
        onScheduleTask(delegate, current, target, task) {
            switch (task.type) {
                case 'microTask':
                    let args = task.data && task.data.args;
                    // should pass additional arguments to callback if have any
                    // currently we know process.nextTick will have such additional
                    // arguments
                    let additionalArgs;
                    if (args) {
                        let callbackIndex = task.data.cbIdx;
                        if (typeof args.length === 'number' && args.length > callbackIndex + 1) {
                            additionalArgs = Array.prototype.slice.call(args, callbackIndex + 1);
                        }
                    }
                    this._microtasks.push({
                        func: task.invoke,
                        args: additionalArgs,
                        target: task.data && task.data.target
                    });
                    break;
                case 'macroTask':
                    switch (task.source) {
                        case 'setTimeout':
                            task.data['handleId'] = this._setTimeout(task.invoke, task.data['delay'], Array.prototype.slice.call(task.data['args'], 2));
                            break;
                        case 'setImmediate':
                            task.data['handleId'] = this._setTimeout(task.invoke, 0, Array.prototype.slice.call(task.data['args'], 1));
                            break;
                        case 'setInterval':
                            task.data['handleId'] = this._setInterval(task.invoke, task.data['delay'], Array.prototype.slice.call(task.data['args'], 2));
                            break;
                        case 'XMLHttpRequest.send':
                            throw new Error('Cannot make XHRs from within a fake async test. Request URL: ' +
                                task.data['url']);
                        case 'requestAnimationFrame':
                        case 'webkitRequestAnimationFrame':
                        case 'mozRequestAnimationFrame':
                            // Simulate a requestAnimationFrame by using a setTimeout with 16 ms.
                            // (60 frames per second)
                            task.data['handleId'] = this._setTimeout(task.invoke, 16, task.data['args'], this.trackPendingRequestAnimationFrame);
                            break;
                        default:
                            // user can define which macroTask they want to support by passing
                            // macroTaskOptions
                            const macroTaskOption = this.findMacroTaskOption(task);
                            if (macroTaskOption) {
                                const args = task.data && task.data['args'];
                                const delay = args && args.length > 1 ? args[1] : 0;
                                let callbackArgs = macroTaskOption.callbackArgs ? macroTaskOption.callbackArgs : args;
                                if (!!macroTaskOption.isPeriodic) {
                                    // periodic macroTask, use setInterval to simulate
                                    task.data['handleId'] = this._setInterval(task.invoke, delay, callbackArgs);
                                    task.data.isPeriodic = true;
                                }
                                else {
                                    // not periodic, use setTimeout to simulate
                                    task.data['handleId'] = this._setTimeout(task.invoke, delay, callbackArgs);
                                }
                                break;
                            }
                            throw new Error('Unknown macroTask scheduled in fake async test: ' + task.source);
                    }
                    break;
                case 'eventTask':
                    task = delegate.scheduleTask(target, task);
                    break;
            }
            return task;
        }
        onCancelTask(delegate, current, target, task) {
            switch (task.source) {
                case 'setTimeout':
                case 'requestAnimationFrame':
                case 'webkitRequestAnimationFrame':
                case 'mozRequestAnimationFrame':
                    return this._clearTimeout(task.data['handleId']);
                case 'setInterval':
                    return this._clearInterval(task.data['handleId']);
                default:
                    // user can define which macroTask they want to support by passing
                    // macroTaskOptions
                    const macroTaskOption = this.findMacroTaskOption(task);
                    if (macroTaskOption) {
                        const handleId = task.data['handleId'];
                        return macroTaskOption.isPeriodic ? this._clearInterval(handleId) :
                            this._clearTimeout(handleId);
                    }
                    return delegate.cancelTask(target, task);
            }
        }
        onInvoke(delegate, current, target, callback, applyThis, applyArgs, source) {
            try {
                FakeAsyncTestZoneSpec.patchDate();
                return delegate.invoke(target, callback, applyThis, applyArgs, source);
            }
            finally {
                if (!this.patchDateLocked) {
                    FakeAsyncTestZoneSpec.resetDate();
                }
            }
        }
        findMacroTaskOption(task) {
            if (!this.macroTaskOptions) {
                return null;
            }
            for (let i = 0; i < this.macroTaskOptions.length; i++) {
                const macroTaskOption = this.macroTaskOptions[i];
                if (macroTaskOption.source === task.source) {
                    return macroTaskOption;
                }
            }
            return null;
        }
        onHandleError(parentZoneDelegate, currentZone, targetZone, error) {
            this._lastError = error;
            return false; // Don't propagate error to parent zone.
        }
    }
    // Export the class so that new instances can be created with proper
    // constructor params.
    Zone['FakeAsyncTestZoneSpec'] = FakeAsyncTestZoneSpec;
})(typeof window === 'object' && window || typeof self === 'object' && self || global);
Zone.__load_patch('fakeasync', (global, Zone, api) => {
    const FakeAsyncTestZoneSpec = Zone && Zone['FakeAsyncTestZoneSpec'];
    function getProxyZoneSpec() {
        return Zone && Zone['ProxyZoneSpec'];
    }
    let _fakeAsyncTestZoneSpec = null;
    /**
     * Clears out the shared fake async zone for a test.
     * To be called in a global `beforeEach`.
     *
     * @experimental
     */
    function resetFakeAsyncZone() {
        if (_fakeAsyncTestZoneSpec) {
            _fakeAsyncTestZoneSpec.unlockDatePatch();
        }
        _fakeAsyncTestZoneSpec = null;
        // in node.js testing we may not have ProxyZoneSpec in which case there is nothing to reset.
        getProxyZoneSpec() && getProxyZoneSpec().assertPresent().resetDelegate();
    }
    /**
     * Wraps a function to be executed in the fakeAsync zone:
     * - microtasks are manually executed by calling `flushMicrotasks()`,
     * - timers are synchronous, `tick()` simulates the asynchronous passage of time.
     *
     * If there are any pending timers at the end of the function, an exception will be thrown.
     *
     * Can be used to wrap inject() calls.
     *
     * ## Example
     *
     * {@example core/testing/ts/fake_async.ts region='basic'}
     *
     * @param fn
     * @returns The function wrapped to be executed in the fakeAsync zone
     *
     * @experimental
     */
    function fakeAsync(fn) {
        // Not using an arrow function to preserve context passed from call site
        const fakeAsyncFn = function (...args) {
            const ProxyZoneSpec = getProxyZoneSpec();
            if (!ProxyZoneSpec) {
                throw new Error('ProxyZoneSpec is needed for the async() test helper but could not be found. ' +
                    'Please make sure that your environment includes zone.js/plugins/proxy');
            }
            const proxyZoneSpec = ProxyZoneSpec.assertPresent();
            if (Zone.current.get('FakeAsyncTestZoneSpec')) {
                throw new Error('fakeAsync() calls can not be nested');
            }
            try {
                // in case jasmine.clock init a fakeAsyncTestZoneSpec
                if (!_fakeAsyncTestZoneSpec) {
                    if (proxyZoneSpec.getDelegate() instanceof FakeAsyncTestZoneSpec) {
                        throw new Error('fakeAsync() calls can not be nested');
                    }
                    _fakeAsyncTestZoneSpec = new FakeAsyncTestZoneSpec();
                }
                let res;
                const lastProxyZoneSpec = proxyZoneSpec.getDelegate();
                proxyZoneSpec.setDelegate(_fakeAsyncTestZoneSpec);
                _fakeAsyncTestZoneSpec.lockDatePatch();
                try {
                    res = fn.apply(this, args);
                    flushMicrotasks();
                }
                finally {
                    proxyZoneSpec.setDelegate(lastProxyZoneSpec);
                }
                if (_fakeAsyncTestZoneSpec.pendingPeriodicTimers.length > 0) {
                    throw new Error(`${_fakeAsyncTestZoneSpec.pendingPeriodicTimers.length} ` +
                        `periodic timer(s) still in the queue.`);
                }
                if (_fakeAsyncTestZoneSpec.pendingTimers.length > 0) {
                    throw new Error(`${_fakeAsyncTestZoneSpec.pendingTimers.length} timer(s) still in the queue.`);
                }
                return res;
            }
            finally {
                resetFakeAsyncZone();
            }
        };
        fakeAsyncFn.isFakeAsync = true;
        return fakeAsyncFn;
    }
    function _getFakeAsyncZoneSpec() {
        if (_fakeAsyncTestZoneSpec == null) {
            _fakeAsyncTestZoneSpec = Zone.current.get('FakeAsyncTestZoneSpec');
            if (_fakeAsyncTestZoneSpec == null) {
                throw new Error('The code should be running in the fakeAsync zone to call this function');
            }
        }
        return _fakeAsyncTestZoneSpec;
    }
    /**
     * Simulates the asynchronous passage of time for the timers in the fakeAsync zone.
     *
     * The microtasks queue is drained at the very start of this function and after any timer callback
     * has been executed.
     *
     * ## Example
     *
     * {@example core/testing/ts/fake_async.ts region='basic'}
     *
     * @experimental
     */
    function tick(millis = 0, ignoreNestedTimeout = false) {
        _getFakeAsyncZoneSpec().tick(millis, null, ignoreNestedTimeout);
    }
    /**
     * Simulates the asynchronous passage of time for the timers in the fakeAsync zone by
     * draining the macrotask queue until it is empty. The returned value is the milliseconds
     * of time that would have been elapsed.
     *
     * @param maxTurns
     * @returns The simulated time elapsed, in millis.
     *
     * @experimental
     */
    function flush(maxTurns) {
        return _getFakeAsyncZoneSpec().flush(maxTurns);
    }
    /**
     * Discard all remaining periodic tasks.
     *
     * @experimental
     */
    function discardPeriodicTasks() {
        const zoneSpec = _getFakeAsyncZoneSpec();
        zoneSpec.pendingPeriodicTimers;
        zoneSpec.pendingPeriodicTimers.length = 0;
    }
    /**
     * Flush any pending microtasks.
     *
     * @experimental
     */
    function flushMicrotasks() {
        _getFakeAsyncZoneSpec().flushMicrotasks();
    }
    Zone[api.symbol('fakeAsyncTest')] =
        { resetFakeAsyncZone, flushMicrotasks, discardPeriodicTasks, tick, flush, fakeAsync };
}, true);

/**
 * Promise for async/fakeAsync zoneSpec test
 * can support async operation which not supported by zone.js
 * such as
 * it ('test jsonp in AsyncZone', async() => {
 *   new Promise(res => {
 *     jsonp(url, (data) => {
 *       // success callback
 *       res(data);
 *     });
 *   }).then((jsonpResult) => {
 *     // get jsonp result.
 *
 *     // user will expect AsyncZoneSpec wait for
 *     // then, but because jsonp is not zone aware
 *     // AsyncZone will finish before then is called.
 *   });
 * });
 */
Zone.__load_patch('promisefortest', (global, Zone, api) => {
    const symbolState = api.symbol('state');
    const UNRESOLVED = null;
    const symbolParentUnresolved = api.symbol('parentUnresolved');
    // patch Promise.prototype.then to keep an internal
    // number for tracking unresolved chained promise
    // we will decrease this number when the parent promise
    // being resolved/rejected and chained promise was
    // scheduled as a microTask.
    // so we can know such kind of chained promise still
    // not resolved in AsyncTestZone
    Promise[api.symbol('patchPromiseForTest')] = function patchPromiseForTest() {
        let oriThen = Promise[Zone.__symbol__('ZonePromiseThen')];
        if (oriThen) {
            return;
        }
        oriThen = Promise[Zone.__symbol__('ZonePromiseThen')] = Promise.prototype.then;
        Promise.prototype.then = function () {
            const chained = oriThen.apply(this, arguments);
            if (this[symbolState] === UNRESOLVED) {
                // parent promise is unresolved.
                const asyncTestZoneSpec = Zone.current.get('AsyncTestZoneSpec');
                if (asyncTestZoneSpec) {
                    asyncTestZoneSpec.unresolvedChainedPromiseCount++;
                    chained[symbolParentUnresolved] = true;
                }
            }
            return chained;
        };
    };
    Promise[api.symbol('unPatchPromiseForTest')] = function unpatchPromiseForTest() {
        // restore origin then
        const oriThen = Promise[Zone.__symbol__('ZonePromiseThen')];
        if (oriThen) {
            Promise.prototype.then = oriThen;
            Promise[Zone.__symbol__('ZonePromiseThen')] = undefined;
        }
    };
});