单元测试:如何使用Angular + Jasmine模拟窗口对象的innerWidth属性？

import { TestBed, ComponentFixture } from '@angular/core/testing';

describe('ComponentName', () => {
  let component: ComponentName;
  let fixture: ComponentFixture<ComponentName>;

  beforeEach(async () => {
    await TestBed.configureTestingModule({
      declarations: [ComponentName]
    }).compileComponents();
  });

  beforeEach(() => {
    fixture = TestBed.createComponent(ComponentName);
    component = fixture.componentInstance;
    fixture.detectChanges();
  });

  it('should simulate innerWidth property', () => {
    // 模拟窗口对象的innerWidth属性
    spyOnProperty(window, 'innerWidth').and.returnValue(800);

    // 断言组件中使用了innerWidth属性的逻辑
    expect(component.someMethod()).toBe(800);
  });
});