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"'); }