MockTestConnection.php

<?php

namespace Drupal\Tests\system\Functional\FileTransfer;


/**
 * Mock connection object for test case.
 */
class MockTestConnection {
    protected $commandsRun = [];
    public $connectionString;
    public function run($cmd) {
        $this->commandsRun[] = $cmd;
    }
    public function flushCommands() {
        $out = $this->commandsRun;
        $this->commandsRun = [];
        return $out;
    }

}