detectChanges重置反应表单。管理测试中的表单值的正确方法是什么？

import { ComponentFixture, TestBed } from '@angular/core/testing';
import { FormsModule, ReactiveFormsModule, FormGroup, FormControl } from '@angular/forms';
import { MyComponent } from './my.component';

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

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

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

  it('should update form value correctly', () => {
    const formGroup: FormGroup = component.formGroup;
    const formControl: FormControl = formGroup.get('myControl') as FormControl;

    // Set form control value
    formControl.setValue('Test Value');

    // Call detectChanges to apply changes
    fixture.detectChanges();

    // Assert form value
    expect(component.formGroup.value).toEqual({ myControl: 'Test Value' });
  });
});