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vendor/symfony/mailer/Test/Constraint/EmailIsQueued.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mailer\Test\Constraint;
+
+use PHPUnit\Framework\Constraint\Constraint;
+use Symfony\Component\Mailer\Event\MessageEvent;
+
+final class EmailIsQueued extends Constraint
+{
+    public function toString(): string
+    {
+        return 'is queued';
+    }
+
+    /**
+     * @param MessageEvent $event
+     */
+    protected function matches($event): bool
+    {
+        return $event->isQueued();
+    }
+
+    /**
+     * @param MessageEvent $event
+     */
+    protected function failureDescription($event): string
+    {
+        return 'the Email '.$this->toString();
+    }
+}