angular-cn/packages/core/test/application_init_spec.ts

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/**
* @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 {APP_INITIALIZER, ApplicationInitStatus} from '../src/application_init';
import {TestBed, async, inject} from '../testing';
export function main() {
describe('ApplicationInitStatus', () => {
describe('no initializers', () => {
it('should return true for `done`',
async(inject([ApplicationInitStatus], (status: ApplicationInitStatus) => {
expect(status.done).toBe(true);
})));
it('should return a promise that resolves immediately for `donePromise`',
async(inject([ApplicationInitStatus], (status: ApplicationInitStatus) => {
status.donePromise.then(() => { expect(status.done).toBe(true); });
})));
});
describe('with async initializers', () => {
let resolve: (result: any) => void;
let promise: Promise<any>;
beforeEach(() => {
promise = new Promise((res) => { resolve = res; });
TestBed.configureTestingModule(
{providers: [{provide: APP_INITIALIZER, multi: true, useValue: () => promise}]});
});
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it('should update the status once all async initializers are done',
async(inject([ApplicationInitStatus], (status: ApplicationInitStatus) => {
let completerResolver = false;
setTimeout(() => {
completerResolver = true;
resolve(null);
});
expect(status.done).toBe(false);
status.donePromise.then(() => {
expect(status.done).toBe(true);
expect(completerResolver).toBe(true);
});
})));
});
});
}