Update CartTest to remove the temporary cart.

tests/Feature/CartTest.php

@@ -84,6 +84,29 @@ class CartTest extends TestCase
         ]);
     }
 
+    public function test_removing_cart(): void
+    {
+        $this->test_user = User::where('username', $this->test_user_username)->first();
+        $this->test_city = City::where('name', $this->test_city_name2)->first();
+
+        $this->assertNotNull($this->test_user);
+        $this->assertNotNull($this->test_city);
+
+        $cart = Cart::where('status', 'CART')
+              ->where('user_id', $this->test_user->id)
+              ->where('city_id', $this->test_city->id)
+              ->first();
+        $cart->delete();
+
+        $this->assertNotNull($cart);
+
+        $this->assertDatabaseMissing('carts', [
+            'status' => 'CART',
+            'user_id' => $this->test_user->id,
+            'city_id'=> $this->test_city->id
+        ]);
+    }
+
     public function test_select_city_with_no_city(): void
     {
         $this->test_city = City::where('name', $this->test_city_name2)->first();