phpstan level 2

Author: dbu

composer.json

@@ -28,7 +28,8 @@
         "php-http/discovery": "^1.12",
         "php-http/async-client-implementation": "^1.1.0 || ^2.0",
         "psr/http-client-implementation": "^1.0 || ^2.0",
-        "psr/http-factory": "^1.0"
+        "psr/http-factory": "^1.0",
+        "toflar/psr6-symfony-http-cache-store": "^4.2"
     },
     "require-dev": {
         "mockery/mockery": "^1.6.0",
@@ -37,7 +38,8 @@
         "php-http/mock-client": "^1.6.0",
         "symfony/process": "^6.4|| ^7.0",
         "symfony/http-kernel": "^6.4|| ^7.0",
-        "phpunit/phpunit": "^10.5"
+        "phpunit/phpunit": "^10.5",
+        "http-interop/http-factory-guzzle": "^0.1.0"
     },
     "conflict": {
         "toflar/psr6-symfony-http-cache-store": "<2.2.1"

phpstan.neon.dist

@@ -1,4 +1,5 @@
 parameters:
-    level: 1
+    level: 2
     paths:
         - src
+

src/SymfonyCache/PurgeTagsListener.php

@@ -118,7 +118,7 @@ public function handlePurgeTags(CacheEvent $event): void
         if (1 === $reflection->getMethod('all')->getNumberOfParameters()) {
             $headers = $request->headers->all($this->tagsHeader);
         } else {
-            $headers = $request->headers->get($this->tagsHeader, '', false);
+            $headers = $request->headers->get($this->tagsHeader, '');
         }
 
         $tags = $this->tagsParser->parseTagsHeaderValue($headers);

src/Test/EventDispatchingHttpCacheTestCase.php

@@ -251,6 +251,7 @@ public function testPreStoreResponseNoStore()
         $httpCache = $this->getHttpCachePartialMock();
         $testListener = new TestListener($this, $httpCache, $request);
         $testListener->preStoreResponse = $preStoreResponse;
+        $this->assertTrue(method_exists($httpCache, 'addSubscriber'));
         $httpCache->addSubscriber($testListener);
 
         $store = $this->createMock(StoreInterface::class);
@@ -279,6 +280,7 @@ public function testPreInvalidateCalled(): void
 
         $httpCache = $this->getHttpCachePartialMock(['pass']);
         $testListener = new TestListener($this, $httpCache, $request);
+        $this->assertTrue(method_exists($httpCache, 'addSubscriber'));
         $httpCache->addSubscriber($testListener);
         $this->assertTrue(method_exists($httpCache, 'addSubscriber'));
         $httpCache
@@ -307,6 +309,7 @@ public function testPreInvalidateReturnEarly(): void
         $httpCache = $this->getHttpCachePartialMock(['pass']);
         $testListener = new TestListener($this, $httpCache, $request);
         $testListener->preInvalidateResponse = $response;
+        $this->assertTrue(method_exists($httpCache, 'addSubscriber'));
         $httpCache->addSubscriber($testListener);
         $this->assertTrue(method_exists($httpCache, 'addSubscriber'));
         $httpCache
@@ -327,6 +330,7 @@ public function testAddListener(): void
 
         $httpCache = $this->getHttpCachePartialMock(['lookup']);
         $simpleListener = new SimpleListener($this, $httpCache, $request);
+        $this->assertTrue(method_exists($httpCache, 'addListener'));
         $httpCache->addListener(Events::PRE_HANDLE, [$simpleListener, 'callback']);
 
         $httpCache