diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php
index 77769e1e98d9..88bcd35d4496 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php
@@ -246,8 +246,8 @@ public function testFile()
         if ($response->headers->get('content-type')) {
             $this->assertSame('text/x-php', $response->headers->get('content-type'));
         }
-        $this->assertContains(ResponseHeaderBag::DISPOSITION_ATTACHMENT, $response->headers->get('content-disposition'));
-        $this->assertContains(basename(__FILE__), $response->headers->get('content-disposition'));
+        $this->assertStringContainsString(ResponseHeaderBag::DISPOSITION_ATTACHMENT, $response->headers->get('content-disposition'));
+        $this->assertStringContainsString(basename(__FILE__), $response->headers->get('content-disposition'));
     }
 
     public function testFileAsInline()
@@ -262,8 +262,8 @@ public function testFileAsInline()
         if ($response->headers->get('content-type')) {
             $this->assertSame('text/x-php', $response->headers->get('content-type'));
         }
-        $this->assertContains(ResponseHeaderBag::DISPOSITION_INLINE, $response->headers->get('content-disposition'));
-        $this->assertContains(basename(__FILE__), $response->headers->get('content-disposition'));
+        $this->assertStringContainsString(ResponseHeaderBag::DISPOSITION_INLINE, $response->headers->get('content-disposition'));
+        $this->assertStringContainsString(basename(__FILE__), $response->headers->get('content-disposition'));
     }
 
     public function testFileWithOwnFileName()
@@ -279,8 +279,8 @@ public function testFileWithOwnFileName()
         if ($response->headers->get('content-type')) {
             $this->assertSame('text/x-php', $response->headers->get('content-type'));
         }
-        $this->assertContains(ResponseHeaderBag::DISPOSITION_ATTACHMENT, $response->headers->get('content-disposition'));
-        $this->assertContains($fileName, $response->headers->get('content-disposition'));
+        $this->assertStringContainsString(ResponseHeaderBag::DISPOSITION_ATTACHMENT, $response->headers->get('content-disposition'));
+        $this->assertStringContainsString($fileName, $response->headers->get('content-disposition'));
     }
 
     public function testFileWithOwnFileNameAsInline()
@@ -296,8 +296,8 @@ public function testFileWithOwnFileNameAsInline()
         if ($response->headers->get('content-type')) {
             $this->assertSame('text/x-php', $response->headers->get('content-type'));
         }
-        $this->assertContains(ResponseHeaderBag::DISPOSITION_INLINE, $response->headers->get('content-disposition'));
-        $this->assertContains($fileName, $response->headers->get('content-disposition'));
+        $this->assertStringContainsString(ResponseHeaderBag::DISPOSITION_INLINE, $response->headers->get('content-disposition'));
+        $this->assertStringContainsString($fileName, $response->headers->get('content-disposition'));
     }
 
     public function testFileFromPath()
@@ -312,8 +312,8 @@ public function testFileFromPath()
         if ($response->headers->get('content-type')) {
             $this->assertSame('text/x-php', $response->headers->get('content-type'));
         }
-        $this->assertContains(ResponseHeaderBag::DISPOSITION_ATTACHMENT, $response->headers->get('content-disposition'));
-        $this->assertContains(basename(__FILE__), $response->headers->get('content-disposition'));
+        $this->assertStringContainsString(ResponseHeaderBag::DISPOSITION_ATTACHMENT, $response->headers->get('content-disposition'));
+        $this->assertStringContainsString(basename(__FILE__), $response->headers->get('content-disposition'));
     }
 
     public function testFileFromPathWithCustomizedFileName()
@@ -328,8 +328,8 @@ public function testFileFromPathWithCustomizedFileName()
         if ($response->headers->get('content-type')) {
             $this->assertSame('text/x-php', $response->headers->get('content-type'));
         }
-        $this->assertContains(ResponseHeaderBag::DISPOSITION_ATTACHMENT, $response->headers->get('content-disposition'));
-        $this->assertContains('test.php', $response->headers->get('content-disposition'));
+        $this->assertStringContainsString(ResponseHeaderBag::DISPOSITION_ATTACHMENT, $response->headers->get('content-disposition'));
+        $this->assertStringContainsString('test.php', $response->headers->get('content-disposition'));
     }
 
     public function testFileWhichDoesNotExist()