Angular2测试 – 失败：未捕获(在承诺中)：错误：模板解析错误：

第一个是：“GamePanelComponent”,其中包含以下内容的html文件：
“my-game-panel-output”标签

第二个是：

import { Component,Input } from '@angular/core';

@Component({
  moduleId: module.id,selector: 'my-game-panel-output',templateUrl: 'gamepaneloutput.component.html',styleUrls: [ 'gamepaneloutput.component.css' ]
})

export class GamePanelOutputComponent {
    @Input()
    message: string;
}

我给GamePanelComponent写了一个测试：

import { ComponentFixture,TestBed,async } from '@angular/core/testing';
import { By }              from '@angular/platform-browser';
import { DebugElement }    from '@angular/core';

import { GamePanelComponent } from './gamepanel.component';
import { GamePanelOutputComponent } from '../gamepaneloutput/gamepaneloutput.component';

describe('GamePanelComponent (inline template)',() => {

  let comp:    GamePanelComponent;
  let fixture: ComponentFixture<GamePanelComponent>;  

  beforeEach( async ( () => {

    TestBed.configureTestingModule({
      declarations: [ GamePanelComponent ],// declare the test component
    }).compileComponents()
        .then(() => {
            fixture = TestBed.createComponent(GamePanelComponent);            
            comp = fixture.componentInstance;
        });
  }));

  it('isValidMove',() => {  
      comp.ngOnInit();      
      let isValid = comp.isValidMove(0,0);
      expect(isValid).toBe(false);
  });

});

不幸的是,测试因此错误而失败：

Failed: Uncaught (in promise): Error: Template parse errors:
Can't bind to 'message' since it isn't a known property of 'my-game-panel-output'.

正如您所看到的,我尝试导入“GamePanelOutputComponent”,但这没有帮助.

我真的坚持下去了.
有人可以帮忙吗？