angular-demo/node_modules/zone.js/fesm2015/async-test.js

'use strict';
/**
 * @license Angular v<unknown>
 * (c) 2010-2024 Google LLC. https://angular.io/
 * License: MIT
 */
const global$1 = globalThis;
// __Zone_symbol_prefix global can be used to override the default zone
// symbol prefix with a custom one if needed.
function __symbol__(name) {
    const symbolPrefix = global$1['__Zone_symbol_prefix'] || '__zone_symbol__';
    return symbolPrefix + name;
}

const __global = (typeof window !== 'undefined' && window) || (typeof self !== 'undefined' && self) || global;
class AsyncTestZoneSpec {
    // Needs to be a getter and not a plain property in order run this just-in-time. Otherwise
    // `__symbol__` would be evaluated during top-level execution prior to the Zone prefix being
    // changed for tests.
    static get symbolParentUnresolved() {
        return __symbol__('parentUnresolved');
    }
    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[__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();
        }
    }
}
function patchAsyncTest(Zone) {
    // Export the class so that new instances can be created with proper
    // constructor params.
    Zone['AsyncTestZoneSpec'] = AsyncTestZoneSpec;
    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);
        }
    });
}

patchAsyncTest(Zone);