public function demoDataPackages()
{
$application = $this->getApplication();
$application->add(new InstallCommand());
/** @var InstallCommand $command */
$command = $this->getApplication()->find('install');
$tester = new InstallCommandTester();
$packages = $tester->getMagentoPackages($command);
$demoDataPackages = $tester->getSampleDataPackages($command);
$this->assertSampleDataPackagesExist($packages, $demoDataPackages);
}