đã tạo được test case của createUser

vendor/php-webdriver/webdriver/lib/Remote/RemoteExecuteMethod.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Facebook\WebDriver\Remote;
+
+class RemoteExecuteMethod implements ExecuteMethod
+{
+    /**
+     * @var RemoteWebDriver
+     */
+    private $driver;
+
+    public function __construct(RemoteWebDriver $driver)
+    {
+        $this->driver = $driver;
+    }
+
+    /**
+     * @param string $command_name
+     * @return mixed
+     */
+    public function execute($command_name, array $parameters = [])
+    {
+        return $this->driver->execute($command_name, $parameters);
+    }
+}