Question

我对Codeception很陌生，我遇到了一个我无法弄清楚的问题。我的测试套件中有大约40个测试，如果测试失败，我需要发送一封电子邮件，说明它失败的原因。例如，如果Codeception无法在页面上找到导致测试失败的元素，我需要发送一封只包含错误的电子邮件，如下所示：

无法验证电子邮件愿望列表在ThisClass :: thisTest（/home/qauser/codeception_tests///acceptance-mobile/Wishlist/EmailWishlistCest.php）中的预期行为无法看到＆＃34;成功！＆＃34;，＆＃34; // * [@ id =＆＃34; wish-list-confirm-popup＆＃34;] / div / div / div [ 1] / H4＆＃34;：

我不想发送完整的堆栈跟踪，只是发送实际的错误。有谁知道这是否可行？

Answer 1

Codeception公开了一个有用的事件集合，这些事件将为这个用例派上用场。有关详细信息，请查看Codeception文档的Customization: Events部分。

我建议拦截该页面上描述的两个事件：

test.fail事件，用于汇总有关每个失败测试的信息。
test.fail.print事件，用于在Codeception完成测试套件时处理聚合数据（例如通过发送摘要电子邮件），并将自己的失败摘要打印到屏幕上。

要完成此任务，您只需构建一个自定义事件处理程序类并将其注册为配置文件中的扩展名：

# codeception.yml
extensions:
    enabled: [MyCustomEventHandler]

# MyCustomEventHandler.php
<?php
// Note: this was drafted using Codeception 2.0.  Some of the namespaces
// maybe different if you're using a more-recent version of Codeception.
class MyCustomEventHandler extends \Codeception\Platform\Extension
{
    /**
     * @var \Exception[]
     */
    protected $testFailures = [];

    /**
     * Maps Codeception events to method names in this class.
     *
     * Defining an event/method pair in this array essentially subscribes
     * the method as a listener for its corresponding event. 
     *
     * @var array
     */
    public static $events = [
        \Codeception\Events::TEST_FAIL       => 'singleTestJustFailed',
        \Codeception\Events::TEST_FAIL_PRINT => 'allTestFailuresAreBeingDisplayed',
    ];

    /**
     * This method will automatically be invoked by Codeception when a test fails.
     *
     * @param \Codeception\Event\FailEvent $event
     */
    public function singleTestJustFailed(\Codeception\Event\FailEvent $event)
    {
        // Here we build a list of all the failures. They'll be consumed further downstream.
        $this->testFailures[] = $event->getFail();
    }

    /**
     * This method will automatically be invoked by Codeception when it displays
     * a summary of all the test failures at the end of the test suite.
     */
    public function allTestFailuresAreBeingDisplayed()
    {
        // Build the email.
        $emailBody = '';
        foreach ($this->testFailures as $failure) {
            // Methods in scope include: $failure->getMessage(), $failure->getFile(), etc.
            $emailBody .= $failure->getMessage() . "\r\n";
        }

        // Now send the email!
    }
}

希望这有帮助！

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