如何使用ReactiveForm测试提交表单。表单在提交过程中重新加载

import { FormsModule, ReactiveFormsModule } from '@angular/forms';

@NgModule({
  imports: [
    FormsModule,
    ReactiveFormsModule
  ],
  // ...
})
export class AppModule { }

import { Component, OnInit } from '@angular/core';
import { FormGroup, FormControl } from '@angular/forms';

@Component({
  selector: 'app-form',
  templateUrl: './form.component.html',
  styleUrls: ['./form.component.css']
})
export class FormComponent implements OnInit {
  form: FormGroup;

  ngOnInit() {
    this.form = new FormGroup({
      name: new FormControl(''),
      email: new FormControl(''),
      // 其他表单控件...
    });
  }
}

<form [formGroup]="form" (ngSubmit)="onSubmit()">
  <label for="name">Name:</label>
  <input type="text" id="name" formControlName="name">

  <label for="email">Email:</label>
  <input type="email" id="email" formControlName="email">

  <!-- 其他表单控件... -->

  <button type="submit">Submit</button>
</form>

import { Component, OnInit } from '@angular/core';
import { FormGroup, FormControl } from '@angular/forms';

@Component({
  selector: 'app-form',
  templateUrl: './form.component.html',
  styleUrls: ['./form.component.css']
})
export class FormComponent implements OnInit {
  form: FormGroup;

  ngOnInit() {
    this.form = new FormGroup({
      name: new FormControl(''),
      email: new FormControl(''),
      // 其他表单控件...
    });
  }

  onSubmit() {
    if (this.form.valid) {
      // 表单验证通过，可以进行提交操作
      // 可以在这里调用后端API，保存表单数据等
      console.log(this.form.value);
    }
  }
}

import { ComponentFixture, TestBed } from '@angular/core/testing';
import { ReactiveFormsModule } from '@angular/forms';
import { FormComponent } from './form.component';

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

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

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

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

  it('should submit form', () => {
    spyOn(console, 'log'); // 模拟console.log方法

    component.form.setValue({
      name: 'John',
      email: 'john@example.com'
      // 其他表单控件的值...
    });

    component.onSubmit();

    expect(console.log).toHaveBeenCalledWith({
      name: 'John',
      email: 'john@example.com'
      // 其他表单控件的值...
    });
  });
});