đã tạo được test case của createUser

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

@@ -0,0 +1,10 @@
+<?php
+
+namespace Facebook\WebDriver\Exception;
+
+/**
+ * An error occurred while executing JavaScript supplied by the user.
+ */
+class JavascriptErrorException extends WebDriverException
+{
+}