From 633ff5b21432a5d370af5a9366ed68db9c4ff68e Mon Sep 17 00:00:00 2001
From: Dries Vints <dries@vints.io>
Date: Tue, 7 Apr 2020 19:49:21 +0200
Subject: [PATCH] Fix constant accessor

---
 src/Symfony/Component/HttpFoundation/Response.php           | 2 +-
 src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Component/HttpFoundation/Response.php b/src/Symfony/Component/HttpFoundation/Response.php
index fe35832f87..ddfd1826e4 100644
--- a/src/Symfony/Component/HttpFoundation/Response.php
+++ b/src/Symfony/Component/HttpFoundation/Response.php
@@ -949,7 +949,7 @@ class Response
      */
     public function setCache(array $options): object
     {
-        if ($diff = array_diff(array_keys($options), array_keys(static::HTTP_RESPONSE_CACHE_CONTROL_DIRECTIVES))) {
+        if ($diff = array_diff(array_keys($options), array_keys(self::HTTP_RESPONSE_CACHE_CONTROL_DIRECTIVES))) {
             throw new \InvalidArgumentException(sprintf('Response does not support the following options: "%s".', implode('", "', $diff)));
         }
 
diff --git a/src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php b/src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php
index 73a6936807..2dea5c2b2a 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php
@@ -672,6 +672,12 @@ class ResponseTest extends ResponseTestCase
 
             $this->assertFalse($response->headers->hasCacheControlDirective(str_replace('_', '-', $directive)));
         }
+
+        $response = new DefaultResponse();
+
+        $options = ['etag' => '"whatever"'];
+        $response->setCache($options);
+        $this->assertSame($response->getEtag(), '"whatever"');
     }
 
     public function testSendContent()