symfony
diff --git a/‎src/Symfony/Component/HttpFoundation/StreamedResponse.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/StreamedResponse.php
+12Lines changed: 12 additions & 0 deletions b/‎src/Symfony/Component/HttpFoundation/StreamedResponse.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/StreamedResponse.php
+12Lines changed: 12 additions & 0 deletions
diff --git a/‎src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php
+6-1Lines changed: 6 additions & 1 deletion b/‎src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php
+6-1Lines changed: 6 additions & 1 deletion
diff --git a/‎src/Symfony/Component/HttpFoundation/Tests/StreamedResponseTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/Tests/StreamedResponseTest.php
+18Lines changed: 18 additions & 0 deletions b/‎src/Symfony/Component/HttpFoundation/Tests/StreamedResponseTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpFoundation/Tests/StreamedResponseTest.php
+18Lines changed: 18 additions & 0 deletions
@@ -134,4 +134,16 @@ public function getContent()
     {
         return false;
     }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return $this
+     */
+    public function setNotModified()
+    {
+        $this->setCallback(function() {});
+
+        return parent::setNotModified();
+    }
 }
@@ -126,7 +126,7 @@ public function testMustRevalidateWithProxyRevalidateCacheControlHeader()
 
     public function testSetNotModified()
     {
-        $response = new Response();
+        $response = new Response('test');
         $modified = $response->setNotModified();
         $this->assertObjectHasAttribute('headers', $modified);
         $this->assertObjectHasAttribute('content', $modified);
@@ -135,6 +135,11 @@ public function testSetNotModified()
         $this->assertObjectHasAttribute('statusText', $modified);
         $this->assertObjectHasAttribute('charset', $modified);
         $this->assertEquals(304, $modified->getStatusCode());
+
+        ob_start();
+        $modified->sendContent();
+        $string = ob_get_clean();
+        $this->assertEmpty($string);
     }
 
     public function testIsSuccessful()
 
@@ -132,4 +132,22 @@ public function testReturnThis()
         $this->assertInstanceOf('Symfony\Component\HttpFoundation\StreamedResponse', $response->sendHeaders());
         $this->assertInstanceOf('Symfony\Component\HttpFoundation\StreamedResponse', $response->sendHeaders());
     }
+
+    public function testSetNotModified()
+    {
+        $response = new StreamedResponse(function () { echo 'foo'; });
+        $modified = $response->setNotModified();
+        $this->assertObjectHasAttribute('headers', $modified);
+        $this->assertObjectHasAttribute('content', $modified);
+        $this->assertObjectHasAttribute('version', $modified);
+        $this->assertObjectHasAttribute('statusCode', $modified);
+        $this->assertObjectHasAttribute('statusText', $modified);
+        $this->assertObjectHasAttribute('charset', $modified);
+        $this->assertEquals(304, $modified->getStatusCode());
+
+        ob_start();
+        $modified->sendContent();
+        $string = ob_get_clean();
+        $this->assertEmpty($string);
+    }
 }
Original file line number	Diff line number	Diff line change
`@@ -134,4 +134,16 @@ public function getContent()`
`134`	`134`	`{`
`135`	`135`	`return false;`
`136`	`136`	`}`
	`137`	`+`
	`138`	`+ /**`
	`139`	`+ * {@inheritdoc}`
	`140`	`+ *`
	`141`	`+ * @return $this`
	`142`	`+ */`
	`143`	`+ public function setNotModified()`
	`144`	`+ {`
	`145`	`+ $this->setCallback(function() {});`
	`146`	`+`
	`147`	`+ return parent::setNotModified();`
	`148`	`+ }`
`137`	`149`	`}`