/**
 * @license
 * Copyright Google LLC 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
 */
const _Zone = typeof Zone !== 'undefined' ? Zone : null;
const fakeAsyncTestModule = _Zone && _Zone[_Zone.__symbol__('fakeAsyncTest')];
const fakeAsyncTestModuleNotLoadedErrorMessage = `zone-testing.js is needed for the fakeAsync() test helper but could not be found.
        Please make sure that your environment includes zone.js/testing`;
/**
 * Clears out the shared fake async zone for a test.
 * To be called in a global `beforeEach`.
 *
 * @publicApi
 */
export function resetFakeAsyncZone() {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.resetFakeAsyncZone();
    }
    throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
/**
 * 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 is thrown.
 *
 * Can be used to wrap `inject()` calls.
 *
 * @param fn The function that you want to wrap in the `fakeAysnc` zone.
 *
 * @usageNotes
 * ### Example
 *
 * {@example core/testing/ts/fake_async.ts region='basic'}
 *
 *
 * @returns The function wrapped to be executed in the `fakeAsync` zone.
 * Any arguments passed when calling this returned function will be passed through to the `fn`
 * function in the parameters when it is called.
 *
 * @publicApi
 */
export function fakeAsync(fn) {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.fakeAsync(fn);
    }
    throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
/**
 * 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.
 *
 * @param millis The number of milliseconds to advance the virtual timer.
 * @param tickOptions The options to pass to the `tick()` function.
 *
 * @usageNotes
 *
 * The `tick()` option is a flag called `processNewMacroTasksSynchronously`,
 * which determines whether or not to invoke new macroTasks.
 *
 * If you provide a `tickOptions` object, but do not specify a
 * `processNewMacroTasksSynchronously` property (`tick(100, {})`),
 * then `processNewMacroTasksSynchronously` defaults to true.
 *
 * If you omit the `tickOptions` parameter (`tick(100))`), then
 * `tickOptions` defaults to `{processNewMacroTasksSynchronously: true}`.
 *
 * ### Example
 *
 * {@example core/testing/ts/fake_async.ts region='basic'}
 *
 * The following example includes a nested timeout (new macroTask), and
 * the `tickOptions` parameter is allowed to default. In this case,
 * `processNewMacroTasksSynchronously` defaults to true, and the nested
 * function is executed on each tick.
 *
 * ```
 * it ('test with nested setTimeout', fakeAsync(() => {
 *   let nestedTimeoutInvoked = false;
 *   function funcWithNestedTimeout() {
 *     setTimeout(() => {
 *       nestedTimeoutInvoked = true;
 *     });
 *   };
 *   setTimeout(funcWithNestedTimeout);
 *   tick();
 *   expect(nestedTimeoutInvoked).toBe(true);
 * }));
 * ```
 *
 * In the following case, `processNewMacroTasksSynchronously` is explicitly
 * set to false, so the nested timeout function is not invoked.
 *
 * ```
 * it ('test with nested setTimeout', fakeAsync(() => {
 *   let nestedTimeoutInvoked = false;
 *   function funcWithNestedTimeout() {
 *     setTimeout(() => {
 *       nestedTimeoutInvoked = true;
 *     });
 *   };
 *   setTimeout(funcWithNestedTimeout);
 *   tick(0, {processNewMacroTasksSynchronously: false});
 *   expect(nestedTimeoutInvoked).toBe(false);
 * }));
 * ```
 *
 *
 * @publicApi
 */
export function tick(millis = 0, tickOptions = {
    processNewMacroTasksSynchronously: true
}) {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.tick(millis, tickOptions);
    }
    throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
/**
 * Flushes any pending microtasks and simulates the asynchronous passage of time for the timers in
 * the `fakeAsync` zone by
 * draining the macrotask queue until it is empty.
 *
 * @param maxTurns The maximum number of times the scheduler attempts to clear its queue before
 *     throwing an error.
 * @returns The simulated time elapsed, in milliseconds.
 *
 * @publicApi
 */
export function flush(maxTurns) {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.flush(maxTurns);
    }
    throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
/**
 * Discard all remaining periodic tasks.
 *
 * @publicApi
 */
export function discardPeriodicTasks() {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.discardPeriodicTasks();
    }
    throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
/**
 * Flush any pending microtasks.
 *
 * @publicApi
 */
export function flushMicrotasks() {
    if (fakeAsyncTestModule) {
        return fakeAsyncTestModule.flushMicrotasks();
    }
    throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);
}
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Zone : null;\nconst fakeAsyncTestModule = _Zone && _Zone[_Zone.__symbol__('fakeAsyncTest')];\n\nconst fakeAsyncTestModuleNotLoadedErrorMessage =\n    `zone-testing.js is needed for the fakeAsync() test helper but could not be found.\n        Please make sure that your environment includes zone.js/testing`;\n\n/**\n * Clears out the shared fake async zone for a test.\n * To be called in a global `beforeEach`.\n *\n * @publicApi\n */\nexport function resetFakeAsyncZone(): void {\n  if (fakeAsyncTestModule) {\n    return fakeAsyncTestModule.resetFakeAsyncZone();\n  }\n  throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);\n}\n\n/**\n * Wraps a function to be executed in the `fakeAsync` zone:\n * - Microtasks are manually executed by calling `flushMicrotasks()`.\n * - Timers are synchronous; `tick()` simulates the asynchronous passage of time.\n *\n * If there are any pending timers at the end of the function, an exception is thrown.\n *\n * Can be used to wrap `inject()` calls.\n *\n * @param fn The function that you want to wrap in the `fakeAysnc` zone.\n *\n * @usageNotes\n * ### Example\n *\n * {@example core/testing/ts/fake_async.ts region='basic'}\n *\n *\n * @returns The function wrapped to be executed in the `fakeAsync` zone.\n * Any arguments passed when calling this returned function will be passed through to the `fn`\n * function in the parameters when it is called.\n *\n * @publicApi\n */\nexport function fakeAsync(fn: Function): (...args: any[]) => any {\n  if (fakeAsyncTestModule) {\n    return fakeAsyncTestModule.fakeAsync(fn);\n  }\n  throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);\n}\n\n/**\n * Simulates the asynchronous passage of time for the timers in the `fakeAsync` zone.\n *\n * The microtasks queue is drained at the very start of this function and after any timer callback\n * has been executed.\n *\n * @param millis The number of milliseconds to advance the virtual timer.\n * @param tickOptions The options to pass to the `tick()` function.\n *\n * @usageNotes\n *\n * The `tick()` option is a flag called `processNewMacroTasksSynchronously`,\n * which determines whether or not to invoke new macroTasks.\n *\n * If you provide a `tickOptions` object, but do not specify a\n * `processNewMacroTasksSynchronously` property (`tick(100, {})`),\n * then `processNewMacroTasksSynchronously` defaults to true.\n *\n * If you omit the `tickOptions` parameter (`tick(100))`), then\n * `tickOptions` defaults to `{processNewMacroTasksSynchronously: true}`.\n *\n * ### Example\n *\n * {@example core/testing/ts/fake_async.ts region='basic'}\n *\n * The following example includes a nested timeout (new macroTask), and\n * the `tickOptions` parameter is allowed to default. In this case,\n * `processNewMacroTasksSynchronously` defaults to true, and the nested\n * function is executed on each tick.\n *\n * ```\n * it ('test with nested setTimeout', fakeAsync(() => {\n *   let nestedTimeoutInvoked = false;\n *   function funcWithNestedTimeout() {\n *     setTimeout(() => {\n *       nestedTimeoutInvoked = true;\n *     });\n *   };\n *   setTimeout(funcWithNestedTimeout);\n *   tick();\n *   expect(nestedTimeoutInvoked).toBe(true);\n * }));\n * ```\n *\n * In the following case, `processNewMacroTasksSynchronously` is explicitly\n * set to false, so the nested timeout function is not invoked.\n *\n * ```\n * it ('test with nested setTimeout', fakeAsync(() => {\n *   let nestedTimeoutInvoked = false;\n *   function funcWithNestedTimeout() {\n *     setTimeout(() => {\n *       nestedTimeoutInvoked = true;\n *     });\n *   };\n *   setTimeout(funcWithNestedTimeout);\n *   tick(0, {processNewMacroTasksSynchronously: false});\n *   expect(nestedTimeoutInvoked).toBe(false);\n * }));\n * ```\n *\n *\n * @publicApi\n */\nexport function tick(\n    millis: number = 0, tickOptions: {processNewMacroTasksSynchronously: boolean} = {\n      processNewMacroTasksSynchronously: true\n    }): void {\n  if (fakeAsyncTestModule) {\n    return fakeAsyncTestModule.tick(millis, tickOptions);\n  }\n  throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);\n}\n\n/**\n * Flushes any pending microtasks and simulates the asynchronous passage of time for the timers in\n * the `fakeAsync` zone by\n * draining the macrotask queue until it is empty.\n *\n * @param maxTurns The maximum number of times the scheduler attempts to clear its queue before\n *     throwing an error.\n * @returns The simulated time elapsed, in milliseconds.\n *\n * @publicApi\n */\nexport function flush(maxTurns?: number): number {\n  if (fakeAsyncTestModule) {\n    return fakeAsyncTestModule.flush(maxTurns);\n  }\n  throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);\n}\n\n/**\n * Discard all remaining periodic tasks.\n *\n * @publicApi\n */\nexport function discardPeriodicTasks(): void {\n  if (fakeAsyncTestModule) {\n    return fakeAsyncTestModule.discardPeriodicTasks();\n  }\n  throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);\n}\n\n/**\n * Flush any pending microtasks.\n *\n * @publicApi\n */\nexport function flushMicrotasks(): void {\n  if (fakeAsyncTestModule) {\n    return fakeAsyncTestModule.flushMicrotasks();\n  }\n  throw new Error(fakeAsyncTestModuleNotLoadedErrorMessage);\n}\n"]}