diff --git a/core/modules/simpletest/tests/src/Functional/BrowserWithJavascriptTest.php b/core/modules/simpletest/tests/src/Functional/BrowserWithJavascriptTest.php
new file mode 100644
index 0000000..6c6f0d8
--- /dev/null
+++ b/core/modules/simpletest/tests/src/Functional/BrowserWithJavascriptTest.php
@@ -0,0 +1,45 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Tests\simpletest\Functional\BrowserWithJavascriptTest.
+ */
+
+namespace Drupal\Tests\simpletest\Functional;
+
+use Drupal\simpletest\BrowserTestBase;
+
+/**
+ * Tests a browser with javascript.
+ *
+ * @group javascript
+ */
+class BrowserWithJavascriptTest extends BrowserTestBase {
+
+  public function testJavascript() {
+    $this->drupalGet('<front>');
+    $session = $this->getSession();
+
+    $session->resizeWindow(400, 300);
+    $session->wait(1000, 'false');
+    $javascript = <<<JS
+    (function(){
+        var w = window,
+        d = document,
+        e = d.documentElement,
+        g = d.getElementsByTagName('body')[0],
+        x = w.innerWidth || e.clientWidth || g.clientWidth,
+        y = w.innerHeight|| e.clientHeight|| g.clientHeight;
+        var size = {};
+        size["width"]=x;
+        size["height"]= y;
+        return size;
+    }());
+JS;
+    $pageSize = $session->evaluateScript($javascript);
+    print_r($pageSize);
+    $this->assertEquals(400, $pageSize["width"]);
+    $this->assertEquals(300, $pageSize["height"]);
+  }
+
+}