@angular/core/esm2015/testing/src/fake_async.js

Angular - the core framework

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { discardPeriodicTasksFallback, fakeAsyncFallback, flushFallback, flushMicrotasksFallback, resetFakeAsyncZoneFallback, tickFallback } from './fake_async_fallback';
/** @type {?} */
const _Zone = typeof Zone !== 'undefined' ? Zone : null;
/** @type {?} */
const fakeAsyncTestModule = _Zone && _Zone[_Zone.__symbol__('fakeAsyncTest')];
/**
 * Clears out the shared fake async zone for a test.
 * To be called in a global `beforeEach`.
 *
 * \@publicApi
 * @return {?}
 */
export function resetFakeAsyncZone() {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.resetFakeAsyncZone();
    }
    else {
        return resetFakeAsyncZoneFallback();
    }
}
/**
 * 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.
 *
 * \@usageNotes
 * ### Example
 *
 * {\@example core/testing/ts/fake_async.ts region='basic'}
 *
 * \@publicApi
 * @param {?} fn
 * @return {?} The function wrapped to be executed in the fakeAsync zone
 *
 */
export function fakeAsync(fn) {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.fakeAsync(fn);
    }
    else {
        return fakeAsyncFallback(fn);
    }
}
/**
 * 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.
 *
 * \@usageNotes
 * ### Example
 *
 * {\@example core/testing/ts/fake_async.ts region='basic'}
 *
 * \@publicApi
 * @param {?=} millis
 * @return {?}
 */
export function tick(millis = 0) {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.tick(millis);
    }
    else {
        return tickFallback(millis);
    }
}
/**
 * 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.
 *
 * \@publicApi
 * @param {?=} maxTurns
 * @return {?} The simulated time elapsed, in millis.
 *
 */
export function flush(maxTurns) {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.flush(maxTurns);
    }
    else {
        return flushFallback(maxTurns);
    }
}
/**
 * Discard all remaining periodic tasks.
 *
 * \@publicApi
 * @return {?}
 */
export function discardPeriodicTasks() {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.discardPeriodicTasks();
    }
    else {
        discardPeriodicTasksFallback();
    }
}
/**
 * Flush any pending microtasks.
 *
 * \@publicApi
 * @return {?}
 */
export function flushMicrotasks() {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.flushMicrotasks();
    }
    else {
        return flushMicrotasksFallback();
    }
}
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