feature symfony#61127 [Cache] Add TagAwareAdapterInterface to NullAdapter (a.dmitryuk)

This PR was squashed before being merged into the 7.4 branch.

Discussion
----------

[Cache] Add `TagAwareAdapterInterface` to `NullAdapter`

| Q             | A
| ------------- | ---
| Branch?       | 7.4
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| Issues        | Fix partly symfony#61114, symfony#59193
| License       | MIT

The PR makes NullAdapter taggable to easier test same adapters

Commits
-------

e3eeffc [Cache] Add `TagAwareAdapterInterface` to `NullAdapter`

Author: nicolas-grekas

src/Symfony/Component/Cache/Adapter/NullAdapter.php

@@ -19,7 +19,7 @@
 /**
  * @author Titouan Galopin <[email protected]>
  */
-class NullAdapter implements AdapterInterface, CacheInterface, NamespacedPoolInterface
+class NullAdapter implements AdapterInterface, CacheInterface, NamespacedPoolInterface, TagAwareAdapterInterface
 {
     private static \Closure $createCacheItem;
 
@@ -108,4 +108,9 @@ private function generateItems(array $keys): \Generator
             yield $key => $f($key);
         }
     }
+
+    public function invalidateTags(array $tags): bool
+    {
+        return true;
+    }
 }

src/Symfony/Component/Cache/Tests/Adapter/NullAdapterTest.php

@@ -138,4 +138,11 @@ public function testCommit()
         $this->assertTrue($adapter->saveDeferred($item));
         $this->assertTrue($this->createCachePool()->commit());
     }
+
+    public function testInvalidateTags()
+    {
+        $adapter = $this->createCachePool();
+
+        self::assertTrue($adapter->invalidateTags(['foo']));
+    }
 }

src/Symfony/Component/Config/CHANGELOG.md

@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+7.4
+---
+
+ * Add TagAwareAdapterInterface to NullAdapter
+
 7.3
 ---