public function testConstruct()
{
$cmd = new Command(['echo', '"Hello World!"']);
$this->assertEquals($cmd->getCommand(), 'echo "Hello World!"');
$cmd = new Command('echo ');
$cmd->appendCommand('"Hello World!"');
$this->assertEquals($cmd->getCommand(), 'echo "Hello World!"');
$cmd->replaceCommand('echo "Another Command"');
$this->assertEquals($cmd->getCommand(), 'echo "Another Command"');
}
