无法测试事件是不是具有 Laravel 5 和 PHPUnit 的属性

Posted 2023-03-15

【中文标题】无法测试事件是不是具有 Laravel 5 和 PHPUnit 的属性

【英文标题】：Unable to test that an Event has properties with Laravel 5 and PHPUnit无法测试事件是否具有 Laravel 5 和 PHPUnit 的属性

【发布时间】：2015-07-02 01:28:08

【问题描述】：

我正在尝试测试我的事件在触发时是否具有正确的属性。我能够确定触发了一个事件，但不能确定发送了正确的属性。

PHP

<?php

use App\Events\ManifestRecordCreated;
use App\ManifestFile;
use Illuminate\Support\Facades\Event;
use Illuminate\Support\Facades\Storage;

class ManifestTest extends TestCase 

    /**
     * This is the test I'd like to perfom.
     */
    public function testOhLookMyEventGetsTheRightProperties()
    
      Event::shouldReceive('fire')->once()->withArgs(array('App\\Events\\ManifestRecordCreated', array (
         'poseId' => 2,
         'stateId' => 1,
         'manifestId' => 1,
         )
      ));
      Event::fire(new ManifestRecordCreated(2, 1, 1));
    
    /**
     * Test that the event is fired.
     */
    public function testOnlyOneThatWorks()
    
       Event::shouldReceive('fire')->once()->with(Mockery::any());
       Event::fire(new ManifestRecordCreated(2, 1, 1));
    

    /**
     * I'd like to test if the evnt is getting the right arguments.
     */
    public function testGraspingAtStraws()
    
      $args = array ('App\Events\ManifestRecordCreated' => array (
        'class' => 'App\Events\ManifestRecordCreated',
        'properties' => array (
         'poseId' => 2,
         'stateId' => 1,
         'manifestId' => 1,
         ),
        'getters' => array (),
        ),
      );
      Event::shouldReceive('fire')->once()->withArgs($args);
      Event::fire(new ManifestRecordCreated(2, 1, 1));
    
    /**
     * I don't think I need this, but I did read it somewhere in my search.
     */
    public function tearDown()
    
        \Mockery::close();
    

PHPUnit测试结果

1) ManifestTest::testOhLookMyEventGetsTheRightProperties
Mockery\Exception\NoMatchingExpectationException: No matching handler found for Mockery_0_Illuminate_Events_Dispatcher::fire(object(App\Events\ManifestRecordCreated)). Either the method was unexpected or its arguments matched no expected argument list for this method

Objects: ( array (
  'App\\Events\\ManifestRecordCreated' => 
  array (
    'class' => 'App\\Events\\ManifestRecordCreated',
    'properties' => 
    array (
      'poseId' => 2,
      'stateId' => 1,
      'manifestId' => 1,
    ),
    'getters' => 
    array (
    ),
  ),
))

2) ManifestTest::testGraspingAtStraws
ErrorException: Undefined offset: 0

Laravel 5 docs 不是很有帮助。

This approach 忽略除事件之外的所有内容。

【参考方案1】：

ErrorException: Undefined offset: 0 的问题是该数组是使用命名键传递的，而不是作为您希望传递的参数的 0 到 X 列表。 （以'App\\Events\\ManifestRecordCreated'为键名）

通常您只需传入一个列表，但使用对象参数匹配可能会失败，因为它不是同一个实例，因此您可以使用 hamcrest equalTo 方法来比较对象值，而不是实例

有点像

public function testObjectValuesEqual()

  Event::shouldReceive('fire')->once()->withArgs([Matchers::equalTo(new ManifestRecordCreated(2, 1, 1))]);
  Event::fire(new ManifestRecordCreated(2, 1, 1));