在Ember js中，如何在单元测试中创建或模拟hasMany关系

Question

我正在对一个具有DS.hasMany()关系属性的模型进行单元测试。每当我执行下面的单元测试时，我都会在我的测试运行程序中得到这个错误：Error: Assertion Failed: All elements of a hasMany relationship must be instances of DS.Model, you passed [<Ember.Object:ember367>,<Ember.Object:ember368>]

有人能解释一下吗，好吗？

型号：

export default DS.Model.extend({
  accounts: DS.hasMany('account'),
  servicesAccounts: DS.hasMany('services-account'),
  address: MF.fragment('address'),
  appEligibilities: MF.fragmentArray('app-eligibility'),

  appsForPremise: Ember.computed('accounts', function () {
    return DS.PromiseArray.create({
      promise: this.get('store').find('app', {
        account: this.get('accounts').mapBy('id')
      })
    });
  })
});

模型统一测试：

import { moduleForModel, test } from 'ember-qunit';
import Ember from 'ember';

moduleForModel('premise', 'Unit | Model | premise', {
  needs: [
    'model:account',
    'model:services-account',
    'model:address',
    'model:app-eligibility'
  ]
});

test('Apps for premise', function (assert) {
  let model = this.subject({
      accounts: [Ember.Object.create({
        id: 'account-1'
      }),
      Ember.Object.create({
        id: 'account-2'
      })],
      appsForPremise: sinon.spy()
    });

  Ember.run(() => {
  });

  assert.equal(model.get('appsForPremise'), '[{id: account-1}, {id: account-2}]');

});

Answer 1

您不能将常规的ember对象传递给hasMany关系，它们必须是存储模型对象。您可以使用存储来创建它们，即

 const store = this.store();
 Ember.run(() => {
    const model = this.subject({
        accounts: [
          store.createRecord('services-account', {
            id: 'account-1'
        }),
          store.createRecord('services-account',{
            id: 'account-2'
        })],
        appsForPremise: sinon.spy()
    });
 });

对store方法的调用必须进入run循环，否则Ember会报错。