diff --git a/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php b/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
index 4e20366938..992e2c4882 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
@@ -1477,6 +1477,13 @@ class RequestTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(80, $request->getPort());
         $this->assertFalse($request->isSecure());
 
+        // request is forwarded by a non-trusted proxy
+        Request::setTrustedProxies(array('2.2.2.2'));
+        $this->assertEquals('3.3.3.3', $request->getClientIp());
+        $this->assertEquals('example.com', $request->getHost());
+        $this->assertEquals(80, $request->getPort());
+        $this->assertFalse($request->isSecure());
+
         // trusted proxy via setTrustedProxies()
         Request::setTrustedProxies(array('3.3.3.3', '2.2.2.2'));
         $this->assertEquals('1.1.1.1', $request->getClientIp());