angular-docs-cn/packages/router/test/spy_ng_module_factory_loade...

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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 {fakeAsync, tick} from '@angular/core/testing';
import {SpyNgModuleFactoryLoader} from '../testing/src/router_testing_module';
describe('SpyNgModuleFactoryLoader', () => {
it('should invoke the compiler when the setter is called', () => {
const expected = Promise.resolve('returned');
const compiler: any = {compileModuleAsync: () => {}};
spyOn(compiler, 'compileModuleAsync').and.returnValue(expected);
const r = new SpyNgModuleFactoryLoader(<any>compiler);
r.stubbedModules = {'one': 'someModule'};
expect(compiler.compileModuleAsync).toHaveBeenCalledWith('someModule');
expect(r.stubbedModules['one']).toBe(expected);
});
it('should return the created promise', () => {
const expected: any = Promise.resolve('returned');
const compiler: any = {compileModuleAsync: () => expected};
const r = new SpyNgModuleFactoryLoader(<any>compiler);
r.stubbedModules = {'one': 'someModule'};
expect(r.load('one')).toBe(expected);
});
it('should return a rejected promise when given an invalid path', fakeAsync(() => {
const r = new SpyNgModuleFactoryLoader(<any>null);
let error: any = null;
r.load('two').catch((e: any) => error = e);
tick();
expect(error).toEqual(new Error('Cannot find module two'));
}));
});