angular-docs-cn/modules/@angular/compiler-cli/integrationtest/test/projection_spec.ts

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TypeScript

import {DebugElement, ReflectiveInjector, getDebugNode} from '@angular/core';
import {BROWSER_APP_PROVIDERS, By, browserPlatform} from '@angular/platform-browser';
import {CompWithProjection} from '../src/projection';
import {MainCompNgFactory} from '../src/projection.ngfactory';
describe('content projection', () => {
it('should support basic content projection', () => {
const appInjector =
ReflectiveInjector.resolveAndCreate(BROWSER_APP_PROVIDERS, browserPlatform().injector);
var mainComp = MainCompNgFactory.create(appInjector);
var debugElement = <DebugElement>getDebugNode(mainComp.location.nativeElement);
var compWithProjection = debugElement.query(By.directive(CompWithProjection));
expect(compWithProjection.children.length).toBe(1);
expect(compWithProjection.children[0].attributes['greeting']).toEqual('Hello world!');
});
});