Fix retrieving strategy for custom AccessDecisionManager

Author: javer

Authorization/TraceableAccessDecisionManager.php

@@ -26,7 +26,7 @@
 class TraceableAccessDecisionManager implements AccessDecisionManagerInterface
 {
     private AccessDecisionManagerInterface $manager;
-    private AccessDecisionStrategyInterface $strategy;
+    private ?AccessDecisionStrategyInterface $strategy = null;
     /** @var iterable<mixed, VoterInterface> */
     private iterable $voters = [];
     private array $decisionLog = []; // All decision logs

Tests/Authorization/TraceableAccessDecisionManagerTest.php

@@ -274,4 +274,13 @@ public function testAccessDecisionManagerCalledByVoter()
             ],
         ], $sut->getDecisionLog());
     }
+
+    public function testCustomAccessDecisionManagerReturnsEmptyStrategy()
+    {
+        $admMock = $this->createMock(AccessDecisionManagerInterface::class);
+
+        $adm = new TraceableAccessDecisionManager($admMock);
+
+        $this->assertEquals('-', $adm->getStrategy());
+    }
 }