public function testOutput()
{
$command = new FilesyncCommand('contao:filesync');
$command->setFramework($this->mockContaoFramework());
$tester = new CommandTester($command);
$code = $tester->execute([]);
$this->assertEquals(0, $code);
$this->assertContains('Synchronization complete (see sync.log).', $tester->getDisplay());
}