D-Net

/**

 * Clears out the shared fake async zone for a test.

 * To be called in a global `beforeEach`.

 *

 * @experimental

 */

export declare function resetFakeAsyncZone(): void;

/**

 * 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 testing/ts/fake_async.ts region='basic'}

 *

 * @param fn

 * @returns {Function} The function wrapped to be executed in the fakeAsync zone

 *

 * @experimental

 */

export declare function fakeAsync(fn: Function): (...args: any[]) => any;

/**

 * 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 testing/ts/fake_async.ts region='basic'}

 *

 * @experimental

 */

export declare function tick(millis?: number): void;

/**

 * 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 {number} The simulated time elapsed, in millis.

 *

 * @experimental

 */

export declare function flush(maxTurns?: number): number;

/**

 * Discard all remaining periodic tasks.

 *

 * @experimental

 */

export declare function discardPeriodicTasks(): void;

/**

 * Flush any pending microtasks.

 *

 * @experimental

 */

export declare function flushMicrotasks(): void;