đã tạo được test case của createUser

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

@@ -0,0 +1,10 @@
+<?php
+
+namespace Facebook\WebDriver\Exception;
+
+/**
+ * An attempt was made to operate on a modal dialog when one was not open.
+ */
+class NoSuchAlertException extends WebDriverException
+{
+}