Question

我被链接到另一张票。此错误仅在测试中发生，我已导入每个链接消息的FormsModule。我正在使用Angular 2.2.1。

未在'ng test'中定义的ngModel我已导入FormsModule和ReactiveFormsModule无效。我一直在研究这个问题24个小时，而且我没有接近。大多数都与升级有关，我擦除并重新启动同样的问题，使用ng generate创建时，测试模板非常简单。

我使用angular cli来构建我的应用程序（并重建它......）并且我添加了表单import，因为它看起来很重要。

这是我的简单模板，请注意，它不是一个表单，而是一个div，它没有区别。 'ng serve'看似合理，所以代码在理论上是正确的。

这是我的表格......

<form class="form-horizontal">
  <div class="form-group">
    <label class="col-sm-2 control-label" for='line1'>Address 1</label>
    <div class="col-sm-10">
      <input type="text" class="form-control" placeholder="Line 1" id='line1' [(ngModel)]='address.line1' required>
    </div>
  </div>
  <div class="form-group">
    <label for="inputPassword" class="col-sm-2 control-label" for='line2'>Address 2</label>
    <div class="col-sm-10">
      <input type="text" class="form-control" id="line2" placeholder="Line 2" [(ngModel)]='address.line2'>
    </div>
  </div>
  <div class="form-inline">
    <div class="form-group">
      <label for="inputPassword" class="col-sm-2 control-label" for='Suburb'>Suburb</label>
      <div class="col-sm-6">
        <input type="text" class="form-control" id="suburb" placeholder="Suburb" [(ngModel)]='address.suburb'>
      </div>
      <div class="col-sm-2">
        <input type="text" class="form-control" id="State" placeholder="State" [(ngModel)]='address.state'>
      </div>
      <div class="col-sm-2">
        <input type="text" class="form-control" id="postcode" placeholder="Postcode" [(ngModel)]='address.postcode'>
      </div>
    </div>
  </div>
</form>

这是我的测试规范，经过大量研究后我添加了CommonModule和ReactiveFormsModule以及FormsBuilder，没有任何乐趣。

    /* tslint:disable:no-unused-variable */

import { TestBed, async } from '@angular/core/testing';
import { CommonModule } from '@angular/common';
import { FormsModule, ReactiveFormsModule, FormBuilder } from '@angular/forms';


import { AddressComponent } from './address.component';
import { Address } from './address';

describe('Component: Address', () => {
  beforeEach(() => {
    TestBed.configureTestingModule({
      declarations: [AddressComponent],
      imports: [CommonModule, ReactiveFormsModule],
      providers: [FormBuilder]
    });
  });

  it('should create an instance', () => {
    let component = new AddressComponent();
    expect(component).toBeTruthy();
  });

  it('should handle address', () => {
    expect(true).toBeTruthy();
  });

});

这是我的组件。很简单......

import { Input, Component, OnInit } from '@angular/core';
import { Address } from './address';

@Component({
  selector: 'app-address',
  templateUrl: './address.component.html',
  styleUrls: ['./address.component.css'],
})

export class AddressComponent implements OnInit {

  @Input() address: Address;

  constructor() { }

  ngOnInit() {
  }

}

我得到的错误是：

"): AddressComponent@4:78
Can't bind to 'ngModel' since it isn't a known property of 'input'. ("iv class="col-sm-10">
      <input type="text" class="form-control" id="line2" placeholder="Line 2" [ERROR ->][(ngModel)]='address.line2'>

Answer 1

同时添加FormsModule

imports: [CommonModule, ReactiveFormsModule, FormsModule],

无法绑定到'ngModel'，因为它不是'input'的已知属性。测试.spec.ts

1 个答案: