| /** |
| * @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 '../zone-spec/async-test'; |
| |
| Zone.__load_patch('asynctest', (global: any, Zone: ZoneType, api: _ZonePrivate) => { |
| /** |
| * Wraps a test function in an asynchronous test zone. The test will automatically |
| * complete when all asynchronous calls within this zone are done. |
| */ |
| (Zone as any)[api.symbol('asyncTest')] = function asyncTest(fn: Function): (done: any) => any { |
| // 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: any) { |
| 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: any) { |
| throw e; |
| }; |
| } |
| runInTestZone(fn, this, done, (err: any) => { |
| if (typeof err === 'string') { |
| return done.fail(new Error(<string>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<void>((finishCallback, failCallback) => { |
| runInTestZone(fn, this, finishCallback, failCallback); |
| }); |
| }; |
| }; |
| |
| function runInTestZone( |
| fn: Function, context: any, finishCallback: Function, failCallback: Function) { |
| const currentZone = Zone.current; |
| const AsyncTestZoneSpec = (Zone as any)['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/dist/async-test.js'); |
| } |
| const ProxyZoneSpec = (Zone as any)['ProxyZoneSpec'] as { |
| get(): {setDelegate(spec: ZoneSpec): void; getDelegate(): ZoneSpec;}; |
| assertPresent: () => void; |
| }; |
| if (ProxyZoneSpec === undefined) { |
| 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/dist/proxy.js'); |
| } |
| 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: ZoneSpec = new AsyncTestZoneSpec( |
| () => { |
| // 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 as any).unPatchPromiseForTest(); |
| currentZone.run(() => { |
| finishCallback(); |
| }); |
| }, |
| (error: any) => { |
| // 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 as any).unPatchPromiseForTest(); |
| currentZone.run(() => { |
| failCallback(error); |
| }); |
| }, |
| 'test'); |
| proxyZoneSpec.setDelegate(testZoneSpec); |
| (testZoneSpec as any).patchPromiseForTest(); |
| }); |
| return Zone.current.runGuarded(fn, context); |
| } |
| }); |