Neos\Flow\Tests\Unit\Mvc\Controller\FlashMessageContainerTest::flushResetsFlashMessages PHP Method

    public function flushResetsFlashMessages()
    {
        $message1 = new FlowError\Message('This is a test message');
        $this->flashMessageContainer->addMessage($message1);
        $this->flashMessageContainer->flush();
        $this->assertEquals([], $this->flashMessageContainer->getMessages());
    }