Expanded compatibility with psr/cache to include v3.

Author: Bilge

composer.json

@@ -11,7 +11,7 @@
   "require": {
     "php": "^8.1",
     "async/throttle": "^4",
-    "psr/cache": "^1|^2",
+    "psr/cache": "^1|^2|^3",
     "psr/container": "^1|^2",
     "scriptfusion/retry": "^5",
     "scriptfusion/retry-exception-handlers": "^1.2",

src/Cache/CacheItem.php

@@ -24,7 +24,7 @@ public function get(): mixed
         return $this->value;
     }
 
-    public function set(mixed $value): self
+    public function set(mixed $value): static
     {
         $this->value = $value;
 
@@ -36,12 +36,12 @@ public function isHit(): bool
         return $this->hit;
     }
 
-    public function expiresAt($expiration): self
+    public function expiresAt($expiration): static
     {
         throw new NotImplementedException;
     }
 
-    public function expiresAfter($time): self
+    public function expiresAfter($time): static
     {
         throw new NotImplementedException;
     }

src/Cache/MemoryCache.php

@@ -14,7 +14,7 @@ final class MemoryCache extends \ArrayObject implements CacheItemPoolInterface
     /**
      * @param string $key
      */
-    public function getItem($key): mixed
+    public function getItem($key): CacheItemInterface
     {
         return \Closure::bind(
             function () use ($key): self {
@@ -37,17 +37,21 @@ public function hasItem($key): bool
         return isset($this[$key]);
     }
 
-    public function clear(): void
+    public function clear(): bool
     {
         $this->exchangeArray([]);
+
+        return true;
     }
 
-    public function deleteItem($key): void
+    public function deleteItem($key): bool
     {
         unset($this[$key]);
+
+        return true;
     }
 
-    public function deleteItems(array $keys): void
+    public function deleteItems(array $keys): bool
     {
         foreach ($keys as $key) {
             if (!$this->hasItem($key)) {
@@ -56,16 +60,22 @@ public function deleteItems(array $keys): void
 
             $this->deleteItem($key);
         }
+
+        return true;
     }
 
-    public function save(CacheItemInterface $item): void
+    public function save(CacheItemInterface $item): bool
     {
         $this[$item->getKey()] = $item->get();
+
+        return true;
     }
 
-    public function saveDeferred(CacheItemInterface $item): void
+    public function saveDeferred(CacheItemInterface $item): bool
     {
         $this->save($item);
+
+        return true;
     }
 
     public function commit(): bool

test/Unit/Cache/MemoryCacheTest.php

@@ -8,6 +8,9 @@
 use ScriptFUSION\Porter\Cache\InvalidArgumentException;
 use ScriptFUSION\Porter\Cache\MemoryCache;
 
+/**
+ * @see MemoryCache
+ */
 final class MemoryCacheTest extends TestCase
 {
     private MemoryCache $cache;
@@ -50,21 +53,21 @@ public function testHasItem(): void
 
     public function testClear(): void
     {
-        $this->cache->clear();
+        self::assertTrue($this->cache->clear());
 
         self::assertEmpty($this->cache->getArrayCopy());
     }
 
     public function testDeleteItem(): void
     {
-        $this->cache->deleteItem('foo');
+        self::assertTrue($this->cache->deleteItem('foo'));
 
         self::assertFalse($this->cache->hasItem('foo'));
     }
 
     public function testDeleteItems(): void
     {
-        $this->cache->deleteItems(['foo']);
+        self::assertTrue($this->cache->deleteItems(['foo']));
 
         self::assertEmpty($this->cache->getArrayCopy());
     }
@@ -78,14 +81,14 @@ public function testDeleteInvalidItem(): void
 
     public function testSave(): void
     {
-        $this->cache->save($this->cache->getItem('bar')->set('baz'));
+        self::assertTrue($this->cache->save($this->cache->getItem('bar')->set('baz')));
 
         self::assertSame('baz', $this->cache->getItem('bar')->get());
     }
 
     public function testSaveDeferred(): void
     {
-        $this->cache->saveDeferred($this->cache->getItem('bar')->set('baz'));
+        self::assertTrue($this->cache->saveDeferred($this->cache->getItem('bar')->set('baz')));
 
         self::assertSame('baz', $this->cache->getItem('bar')->get());
     }