public function testFileAttachments()
{
$cwd = getcwd();
chdir(dirname(__DIR__));
$options = ['message_options' => ['attachments' => ['files' => ['attachments/file1', 'attachments/file2'], 'dir' => ['iterate' => true, 'path' => 'attachments/dir', 'recursive' => true]]]];
$this->initServiceLocator($options);
$mailService = $this->mailServiceFactory->__invoke($this->serviceLocator, 'acmailer.mailservice.default');
$this->assertCount(4, $mailService->getAttachments());
chdir($cwd);
}