đã tạo được test case của createUser

vendor/php-webdriver/webdriver/lib/Exception/DetachedShadowRootException.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Facebook\WebDriver\Exception;
+
+/**
+ * A command failed because the referenced shadow root is no longer attached to the DOM.
+ */
+class DetachedShadowRootException extends WebDriverException
+{
+}