Evolution of object creation code in tests

CampsiteSetup.cs

namespace CampingInfo.Core.Setup
{
    public class CampsiteSetup
    {
    
    }
}

CampsiteTests.cs

using NUnit.Framework;

namespace Tests
{
    [TestFixture]
    public class CampsiteTests : BaseTest
    {
        [Test]
        public void Should_correctly_act_on_campsite_with_custom_properties()
        {
            // Arrange
            var campsite = _campsiteSetup.Add().LastAdded;
            campsite.RatingCount = 7;
            campsite.Price1 = 23.45f;
            campsite.Caravan = true;
            _campsiteSetup.Persist();

            // Act

            // Assert
        }
    }
}