Create connection test with serializable redis adapter

tests/RedisAdapterTest.php

@@ -9,6 +9,7 @@
 use Ray\Di\Injector;
 use Redis;
 use Symfony\Component\Cache\Adapter\AbstractAdapter;
+use Symfony\Contracts\Cache\ItemInterface;
 
 use function serialize;
 use function unserialize;
@@ -17,7 +18,19 @@ class RedisAdapterTest extends TestCase
 {
     public function testSerialize(): string
     {
-        $string = serialize(new RedisAdapter(new Redis()));
+        $client = RedisAdapter::createConnection(
+            'redis://localhost',
+        );
+
+        $adapter = new RedisAdapter($client);
+        $adapter->get('foo', static function (ItemInterface $item) {
+            return 'foobar';
+        });
+        $foo = $adapter->get('foo', static function (ItemInterface $item) {
+            return '_no_serve_';
+        });
+        $this->assertSame('foobar', $foo);
+        $string = serialize($adapter);
         $this->assertIsString($string);
 
         return $string;
@@ -26,7 +39,11 @@ public function testSerialize(): string
     /** @depends testSerialize */
     public function testUnserialize(string $string): void
     {
-        $this->assertInstanceOf(RedisAdapter::class, unserialize($string));
+        $adapter = unserialize($string);
+        $this->assertInstanceOf(RedisAdapter::class, $adapter);
+        $this->assertSame('foobar', $adapter->get('foo', static function (ItemInterface $item) {
+            return '_no_serve_';
+        }));
     }
 
     public function testCacheNamespaceModule(): void