ctor不是构造函数。Angular7单元测试

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

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

  beforeEach(async () => {
    await TestBed.configureTestingModule({
      declarations: [MyComponent],
      providers: [MyService] // 假设有一个名为MyService的服务需要注入
    }).compileComponents();
  });

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

  it('should create', () => {
    expect(component).toBeTruthy();
  });

  it('should initialize properties', () => {
    expect(component.property1).toBeDefined();
    expect(component.property2).toEqual('default value');
  });

  it('should inject MyService', () => {
    const myService = TestBed.inject(MyService);
    expect(component.myService).toBe(myService);
  });
});