Make getters public,

Add Test

src/Cart.php

@@ -890,7 +890,7 @@ class Cart
      *
      * @return \Carbon\Carbon|null
      */
-    private function createdAt()
+    public function createdAt()
     {
         return $this->createdAt;
     }
@@ -900,7 +900,7 @@ class Cart
      *
      * @return \Carbon\Carbon|null
      */
-    private function updatedAt()
+    public function updatedAt()
     {
         return $this->createdAt;
     }

tests/CartTest.php

@@ -2,6 +2,7 @@
 
 namespace Gloudemans\Tests\Shoppingcart;
 
+use Carbon\Carbon;
 use Gloudemans\Shoppingcart\Cart;
 use Gloudemans\Shoppingcart\CartItem;
 use Gloudemans\Shoppingcart\ShoppingcartServiceProvider;
@@ -870,6 +871,40 @@ class CartTest extends TestCase
         Event::assertDispatched('cart.stored');
     }
 
+    /** @test */
+    public function it_can_store_and_retrieve_cart_from_the_database_with_correct_timestamps()
+    {
+        $this->artisan('migrate', [
+            '--database' => 'testing',
+        ]);
+
+        Event::fake();
+
+        $cart = $this->getCart();
+
+        
+
+        $cart->add(new BuyableProduct());
+        
+        $beforeStore = Carbon::now();
+
+        /* Sleep as database does not store ms */
+        sleep(1);
+
+        $cart->store($identifier = 123);
+
+        sleep(1);
+
+        $afterStore = Carbon::now();
+
+        $cart->restore($identifier);
+
+        $this->assertTrue($beforeStore->lessThanOrEqualTo($cart->createdAt()) && $afterStore->greaterThanOrEqualTo($cart->createdAt()));
+        $this->assertTrue($beforeStore->lessThanOrEqualTo($cart->updatedAt()) && $afterStore->greaterThanOrEqualTo($cart->updatedAt()));
+
+        Event::assertDispatched('cart.stored');
+    }
+
     /**
      * @test
      */