public function testExecute()
{
$application = new Application();
$application->add(new SqliteEnvCommand());
$command = $application->find('sqlite:env');
$commandTester = new CommandTester($command);
$commandTester->execute(['command' => $command->getName()]);
$this->assertRegExp('/successfully/', $commandTester->getDisplay());
//$this->assert ('/.../', $commandTester->getStatusCode());
}