如何在jasmine angular中测试事件html

import { ComponentFixture, TestBed } from '@angular/core/testing';
import { MyComponent } from './my.component';

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

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

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

  it('should trigger event on button click', () => {
    spyOn(component, 'handleButtonClick'); // 模拟事件处理函数

    const button = fixture.nativeElement.querySelector('button');
    button.click(); // 模拟按钮点击事件

    expect(component.handleButtonClick).toHaveBeenCalled(); // 验证事件处理函数是否被调用
  });
});