đã tạo được test case của createUser

vendor/php-webdriver/webdriver/lib/WebDriverUpAction.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Facebook\WebDriver;
+
+use Facebook\WebDriver\Interactions\Touch\WebDriverTouchAction;
+use Facebook\WebDriver\Interactions\Touch\WebDriverTouchScreen;
+
+class WebDriverUpAction extends WebDriverTouchAction implements WebDriverAction
+{
+    private $x;
+    private $y;
+
+    /**
+     * @param int $x
+     * @param int $y
+     */
+    public function __construct(WebDriverTouchScreen $touch_screen, $x, $y)
+    {
+        $this->x = $x;
+        $this->y = $y;
+        parent::__construct($touch_screen);
+    }
+
+    public function perform()
+    {
+        $this->touchScreen->up($this->x, $this->y);
+    }
+}