feat: clonable container with new resolver instance

Signed-off-by: Fery Wardiyanto <ferywardiyanto@gmail.com>

src/Container.php

@@ -4,9 +4,7 @@
 
 namespace Projek;
 
-use Projek\Container\ContainerInterface;
-use Projek\Container\NotFoundException;
-use Projek\Container\Resolver;
+use Projek\Container\{ContainerInterface, NotFoundException, Resolver};
 use Psr\Container\ContainerInterface as PsrContainerInterface;
 
 class Container implements ContainerInterface
@@ -50,6 +48,14 @@ public function __construct(array $instances = [])
         }
     }
 
+    /**
+     * Create new resolver instance when get cloned.
+     */
+    public function __clone()
+    {
+        $this->resolver = new Resolver($this);
+    }
+
     /**
      * {@inheritDoc}
      */

test/spec/Container.spec.php

@@ -330,4 +330,15 @@ public function get($item) {
             expect($somewhere->get($key))->toBe($here->get($key));
         }
     });
+
+    it('Should be cloned with new resolver instance', function () {
+        // Dependencies.
+        $this->c->set('dummy', Dummy::class);
+
+        $c = clone $this->c;
+        $c->set(AbstractFoo::class, ConcreteBar::class);
+
+        expect($this->c->has(AbstractFoo::class))->toBeFalsy();
+        expect($c->has('dummy'))->toBeTruthy();
+    });
 });