đã tạo được test case của createUser

vendor/php-webdriver/webdriver/lib/Exception/Internal/LogicException.php

@@ -0,0 +1,29 @@
+<?php declare(strict_types=1);
+
+namespace Facebook\WebDriver\Exception\Internal;
+
+use Facebook\WebDriver\Exception\PhpWebDriverExceptionInterface;
+
+/**
+ * Exception thrown when error in program logic occurs. This includes invalid domain data and unexpected data states.
+ */
+class LogicException extends \LogicException implements PhpWebDriverExceptionInterface
+{
+    public static function forError(string $message): self
+    {
+        return new self($message);
+    }
+
+    public static function forInvalidHttpMethod(string $url, string $httpMethod, array $params): self
+    {
+        return new self(
+            sprintf(
+                'The http method called for "%s" is "%s", but it has to be POST' .
+                ' if you want to pass the JSON params %s',
+                $url,
+                $httpMethod,
+                json_encode($params)
+            )
+        );
+    }
+}