Ember qunit assert.throws不起作用

我安裝了Ember 2.12並創建了一個帶有組件和測試的新項目，以確保它在未提供必需屬性時會拋出錯誤。我無法通過此測試。Ember qunit assert.throws不起作用

虛設component.hbs

{{value}} 
{{yield}}

虛設component.js

import Ember from 'ember'; 
export default Ember.Component.extend({ 
    value: Ember.computed(() => { 
    Ember.assert("Someone forgot to provide a required value attribute"); 
    }) 
});

虛設組分-test.js

import { moduleForComponent, test } from 'ember-qunit'; 
import hbs from 'htmlbars-inline-precompile'; 

moduleForComponent('dummy-component', 'Integration | Component | dummy component', { 
    integration: true 
}); 

test('it throws', function(assert) { 
    assert.throws(() => { 
    this.render(hbs`{{dummy-component}}`); 
    }, 'Error: Assertion Failed: Someone forgot to provide a required value attribute'); 
});

測試失敗，出現以下：

 
    --- 
     actual: > 
      false 
     expected: > 
      true 
     stack: > 
      [email protected]://localhost:7357/assets/test-support.js:7664:49 
      [email protected]://localhost:7357/assets/vendor.js:50288:22 
      [email protected]://localhost:7357/assets/vendor.js:28557:23 
      [email protected]://localhost:7357/assets/vendor.js:10921:14 
      [email protected]://localhost:7357/assets/vendor.js:10977:15 
      [email protected]://localhost:7357/assets/vendor.js:11101:20 
      [email protected]://localhost:7357/assets/vendor.js:11171:28 
      [email protected]://localhost:7357/assets/vendor.js:11285:19 
      [email protected]://localhost:7357/assets/vendor.js:33262:32 
      [email protected]://localhost:7357/assets/test-support.js:8538:30 
      http://localhost:7357/assets/tests.js:129:19 
      [email protected]://localhost:7357/assets/test-support.js:4609:17 
      http://localhost:7357/assets/tests.js:128:18 
      [email protected]://localhost:7357/assets/test-support.js:3696:34 
      [email protected]://localhost:7357/assets/test-support.js:3682:13 
      http://localhost:7357/assets/test-support.js:3860:15 
      [email protected]://localhost:7357/assets/test-support.js:5094:26 
      [email protected]://localhost:7357/assets/test-support.js:5077:11 
      http://localhost:7357/assets/test-support.js:4294:11 
     message: > 
      Error: Assertion Failed: Someone forgot to provide a required value attribute 
     Log: | 
      { type: 'error', text: 'null\n' } 
    ...

個

整個過程的時間不到5分鐘

npm install -g ember-cli 
ember new ember-test 
ember g component dummy-component 
<copy.paste> template, js and the test 
ember test

來源

2017-03-23 SergPro

也打開了一張票，並在這裏發佈了幾個解決方法https://github.com/emberjs/ember-qunit/issues/256 – SergPro

幾乎相同的問題：http://stackoverflow.com/questions/42781085/ember-render -hbs-swallowing-thrown-error – ykaragol

我在ember.js中填充了一個問題：https：//github.com/emberjs/ember.js/issues/15013 – ykaragol

溶液在github issue提交已經提供一種解決方法;但我複製的步驟，以解決這個問題申請，以幫助他人：

通過

ember install ember-qunit-assert-helpers

更改您的代碼安裝燼-qunit斷言，助手即throws一個錯誤Ember.assert。

在您的測試課程中，使用assert.expectAssertion而不是assert.throws。

來源

2017-03-24 06:48:25 alptugd

Ember qunit assert.throws不起作用

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