Javascript 存在时，Ember CLI生成的单元测试失败

我在controllers/order.js中有一个订单控制器

import Ember from 'ember';

export default Ember.Controller.extend({
  needs: "orders"
});

这在/tests/unit/controllers/order-test.js中有一个测试

import { moduleFor, test } from 'ember-qunit';

moduleFor('controller:order', {
// Specify the other units that are required for this test.
// needs: ['controller:foo']
});

// Replace this with your real tests.
test('it exists', function(assert) {
var controller = this.subject();
assert.ok(controller);
});

router.js看起来像这样

this.resource('orders', function() {
  this.resource('order', { path: ":order_id"} , function() {
  });
  this.route('create');
});

我的想法是，我有一个/orders/route，其中有人在表中单击一个订单，然后在表下方显示有关该订单的更多详细信息，例如，该路径现在是/orders/1

在以下情况下，单元测试失败：

Died on test #1     at Object.test (http://localhost:4200/assets/test-support.js:1644:11)
at http://localhost:4200/assets/orders-app.js:1464:15
at mod.state (http://localhost:4200/assets/vendor.js:150:29)
at tryFinally (http://localhost:4200/assets/vendor.js:30:14)
at requireModule (http://localhost:4200/assets/vendor.js:148:5)
at Object.TestLoader.require (http://localhost:4200/assets/test-loader.js:29:9)
at Object.TestLoader.loadModules (http://localhost:4200/assets/test-loader.js:21:18): <(subclass of Ember.Controller):ember216> needs [ controller:orders ] but it could not be found

Error: <(subclass of Ember.Controller):ember216> needs [ controller:orders ] but it could not be found
at new Error (native)
at Error.EmberError (http://localhost:4200/assets/vendor.js:22707:21)
at verifyNeedsDependencies (http://localhost:4200/assets/vendor.js:13783:13)
at ControllerMixin.default.reopen.init (http://localhost:4200/assets/vendor.js:13865:11)
at superWrapper [as init] (http://localhost:4200/assets/vendor.js:27980:20)
at new Class (http://localhost:4200/assets/vendor.js:41203:14)
at Function.ClassMixinProps.create (http://localhost:4200/assets/vendor.js:41625:14)
at exports.default.klassy.Klass.extend.defaultSubject (http://localhost:4200/assets/test-support.js:2188:22)
at Object.exports.default.klassy.Klass.extend.contextualizeCallbacks.context.(anonymous function) [as subject] (http://localhost:4200/assets/test-support.js:2209:41)
at Object.<anonymous> (http://localhost:4200/assets/orders-app.js:1465:27)

在Object.test测试#1时死亡(http://localhost:4200/assets/test-support.js:1644:11）
在http://localhost:4200/assets/orders-app.js:1464:15
在mod.state(http://localhost:4200/assets/vendor.js:150:29)
终于(http://localhost:4200/assets/vendor.js:30:14)
按要求(http://localhost:4200/assets/vendor.js:148:5)
在Object.TestLoader.require(http://localhost:4200/assets/test-loader.js:29:9）
位于Object.TestLoader.loadModules(http://localhost:4200/assets/test-loader.js:21:18）：需要[controller:orders]，但找不到它
错误：需要[controller:orders]，但找不到它
新错误时（本机）
错误的，错误的(http://localhost:4200/assets/vendor.js:22707:21)
在验证需求独立性时(http://localhost:4200/assets/vendor.js:13783:13)
在ControllerMixin.default.reopen.init处(http://localhost:4200/assets/vendor.js:13865:11)
在超级包装器上[作为初始](http://localhost:4200/assets/vendor.js:27980:20)
在新课上(http://localhost:4200/assets/vendor.js:41203:14)
在Function.ClassMixinProps.create处(http://localhost:4200/assets/vendor.js:41625:14)
在exports.default.klassy.Klass.extend.defaultSubject处(http://localhost:4200/assets/test-support.js:2188:22）
位于Object.exports.default.klassy.Klass.extend.contextualizeCallbacks.context.（匿名函数）[作为主题](http://localhost:4200/assets/test-support.js:2209:41）
反对。(http://localhost:4200/assets/orders-app.js:1465:27）

---

要使单元测试通过，我需要在设置或测试中更改什么？

您需要通知测试控制器依赖关系。为此，请将moduleFor方法更改为以下内容：

moduleFor('controller:order', {
  needs: ['controller:orders']});

---

这导致错误更改为：beforeach failed on exists:尝试注册未知工厂：

controller:orders

是否有名为orders.js的控制器？如果没有，您可以从order.js和order-test.js中删除“needs”指令。这就解决了问题，添加订单控制器也解决了问题。