@angular/core
Version:
Angular - the core framework
144 lines • 14.2 kB
JavaScript
/**
* @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
*/
/**
* fakeAsync has been moved to zone.js
* this file is for fallback in case old version of zone.js is used
*/
var _Zone = typeof Zone !== 'undefined' ? Zone : null;
var FakeAsyncTestZoneSpec = _Zone && _Zone['FakeAsyncTestZoneSpec'];
var ProxyZoneSpec = _Zone && _Zone['ProxyZoneSpec'];
var _fakeAsyncTestZoneSpec = null;
/**
* Clears out the shared fake async zone for a test.
* To be called in a global `beforeEach`.
*
* @publicApi
*/
export function resetFakeAsyncZoneFallback() {
_fakeAsyncTestZoneSpec = null;
// in node.js testing we may not have ProxyZoneSpec in which case there is nothing to reset.
ProxyZoneSpec && ProxyZoneSpec.assertPresent().resetDelegate();
}
var _inFakeAsyncCall = false;
/**
* 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'}
*
* @param fn
* @returns The function wrapped to be executed in the fakeAsync zone
*
* @publicApi
*/
export function fakeAsyncFallback(fn) {
// Not using an arrow function to preserve context passed from call site
return function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
var proxyZoneSpec = ProxyZoneSpec.assertPresent();
if (_inFakeAsyncCall) {
throw new Error('fakeAsync() calls can not be nested');
}
_inFakeAsyncCall = true;
try {
if (!_fakeAsyncTestZoneSpec) {
if (proxyZoneSpec.getDelegate() instanceof FakeAsyncTestZoneSpec) {
throw new Error('fakeAsync() calls can not be nested');
}
_fakeAsyncTestZoneSpec = new FakeAsyncTestZoneSpec();
}
var res = void 0;
var lastProxyZoneSpec = proxyZoneSpec.getDelegate();
proxyZoneSpec.setDelegate(_fakeAsyncTestZoneSpec);
try {
res = fn.apply(this, args);
flushMicrotasksFallback();
}
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 {
_inFakeAsyncCall = false;
resetFakeAsyncZoneFallback();
}
};
}
function _getFakeAsyncZoneSpec() {
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.
*
* @usageNotes
* ### Example
*
* {@example core/testing/ts/fake_async.ts region='basic'}
*
* @publicApi
*/
export function tickFallback(millis) {
if (millis === void 0) { millis = 0; }
_getFakeAsyncZoneSpec().tick(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.
*
* @param maxTurns
* @returns The simulated time elapsed, in millis.
*
* @publicApi
*/
export function flushFallback(maxTurns) {
return _getFakeAsyncZoneSpec().flush(maxTurns);
}
/**
* Discard all remaining periodic tasks.
*
* @publicApi
*/
export function discardPeriodicTasksFallback() {
var zoneSpec = _getFakeAsyncZoneSpec();
zoneSpec.pendingPeriodicTimers.length = 0;
}
/**
* Flush any pending microtasks.
*
* @publicApi
*/
export function flushMicrotasksFallback() {
_getFakeAsyncZoneSpec().flushMicrotasks();
}
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All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * fakeAsync has been moved to zone.js\n * this file is for fallback in case old version of zone.js is used\n */\nconst _Zone: any = typeof Zone !== 'undefined' ? Zone : null;\nconst FakeAsyncTestZoneSpec = _Zone && _Zone['FakeAsyncTestZoneSpec'];\ntype ProxyZoneSpec = {\n  setDelegate(delegateSpec: ZoneSpec): void; getDelegate(): ZoneSpec; resetDelegate(): void;\n};\nconst ProxyZoneSpec: {get(): ProxyZoneSpec; assertPresent: () => ProxyZoneSpec} =\n    _Zone && _Zone['ProxyZoneSpec'];\n\nlet _fakeAsyncTestZoneSpec: any = null;\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 resetFakeAsyncZoneFallback() {\n  _fakeAsyncTestZoneSpec = null;\n  // in node.js testing we may not have ProxyZoneSpec in which case there is nothing to reset.\n  ProxyZoneSpec && ProxyZoneSpec.assertPresent().resetDelegate();\n}\n\nlet _inFakeAsyncCall = false;\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 will be thrown.\n *\n * Can be used to wrap inject() calls.\n *\n * @usageNotes\n * ### Example\n *\n * {@example core/testing/ts/fake_async.ts region='basic'}\n *\n * @param fn\n * @returns The function wrapped to be executed in the fakeAsync zone\n *\n * @publicApi\n */\nexport function fakeAsyncFallback(fn: Function): (...args: any[]) => any {\n  // Not using an arrow function to preserve context passed from call site\n  return function(...args: any[]) {\n    const proxyZoneSpec = ProxyZoneSpec.assertPresent();\n    if (_inFakeAsyncCall) {\n      throw new Error('fakeAsync() calls can not be nested');\n    }\n    _inFakeAsyncCall = true;\n    try {\n      if (!_fakeAsyncTestZoneSpec) {\n        if (proxyZoneSpec.getDelegate() instanceof FakeAsyncTestZoneSpec) {\n          throw new Error('fakeAsync() calls can not be nested');\n        }\n\n        _fakeAsyncTestZoneSpec = new FakeAsyncTestZoneSpec();\n      }\n\n      let res: any;\n      const lastProxyZoneSpec = proxyZoneSpec.getDelegate();\n      proxyZoneSpec.setDelegate(_fakeAsyncTestZoneSpec);\n      try {\n        res = fn.apply(this, args);\n        flushMicrotasksFallback();\n      } finally {\n        proxyZoneSpec.setDelegate(lastProxyZoneSpec);\n      }\n\n      if (_fakeAsyncTestZoneSpec.pendingPeriodicTimers.length > 0) {\n        throw new Error(\n            `${_fakeAsyncTestZoneSpec.pendingPeriodicTimers.length} ` +\n            `periodic timer(s) still in the queue.`);\n      }\n\n      if (_fakeAsyncTestZoneSpec.pendingTimers.length > 0) {\n        throw new Error(\n            `${_fakeAsyncTestZoneSpec.pendingTimers.length} timer(s) still in the queue.`);\n      }\n      return res;\n    } finally {\n      _inFakeAsyncCall = false;\n      resetFakeAsyncZoneFallback();\n    }\n  };\n}\n\nfunction _getFakeAsyncZoneSpec(): any {\n  if (_fakeAsyncTestZoneSpec == null) {\n    throw new Error('The code should be running in the fakeAsync zone to call this function');\n  }\n  return _fakeAsyncTestZoneSpec;\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 * @usageNotes\n * ### Example\n *\n * {@example core/testing/ts/fake_async.ts region='basic'}\n *\n * @publicApi\n */\nexport function tickFallback(millis: number = 0): void {\n  _getFakeAsyncZoneSpec().tick(millis);\n}\n\n/**\n * Simulates the asynchronous passage of time for the timers in the fakeAsync zone by\n * draining the macrotask queue until it is empty. The returned value is the milliseconds\n * of time that would have been elapsed.\n *\n * @param maxTurns\n * @returns The simulated time elapsed, in millis.\n *\n * @publicApi\n */\nexport function flushFallback(maxTurns?: number): number {\n  return _getFakeAsyncZoneSpec().flush(maxTurns);\n}\n\n/**\n * Discard all remaining periodic tasks.\n *\n * @publicApi\n */\nexport function discardPeriodicTasksFallback(): void {\n  const zoneSpec = _getFakeAsyncZoneSpec();\n  zoneSpec.pendingPeriodicTimers.length = 0;\n}\n\n/**\n * Flush any pending microtasks.\n *\n * @publicApi\n */\nexport function flushMicrotasksFallback(): void {\n  _getFakeAsyncZoneSpec().flushMicrotasks();\n}\n"]}