using System;

using System.Collections.Generic;

using System.Text;

using NUnit.Framework;

using NUnit.Framework.SyntaxHelpers;

using Otis.Tests.Entity;

using System.Reflection;



namespace Otis.Tests

{

	[TestFixture]

	public class GenericsMappingTests

	{

		private GenericEntity<int> m_source;



		[SetUp]

		public void TestFixtureSetup()

		{

			m_source = new GenericEntity<int>();

			m_source.Id = 1;

			m_source.NullableProperty = 2;

		}



		public IAssembler<XmlGenericEntityDTO, GenericEntity<int>> CreateXmlAssembler()

		{

			Configuration cfg = new Configuration();

			cfg.AddAssemblyReference(Assembly.GetAssembly(typeof(GenericsMappingTests)));

			cfg.AddAssemblyResources(Assembly.GetAssembly(typeof(XmlGenericEntityDTO)), "otis.xml");

			return cfg.GetAssembler<XmlGenericEntityDTO, GenericEntity<int>>();

		}



		public IAssembler<AttributedGenericEntityDTO, GenericEntity<int>> CreateAttributedAssembler()

		{

			Configuration cfg = new Configuration();

			cfg.AddType(typeof(AttributedGenericEntityDTO));

			// the following 2 lines are there to init Nullable transformation

			cfg.AddAssemblyReference(Assembly.GetAssembly(typeof(GenericsMappingTests)));

			cfg.AddAssemblyResources(Assembly.GetAssembly(typeof(XmlGenericEntityDTO)), "otis.xml");

			

			return cfg.GetAssembler<AttributedGenericEntityDTO, GenericEntity<int>>();

		}



		[Test]

		public void TestAttributedGenerics()

		{

			IAssembler<AttributedGenericEntityDTO, GenericEntity<int>> asm = CreateAttributedAssembler();



			AttributedGenericEntityDTO dto = asm.AssembleFrom(m_source);

			Assert.That(dto.Id, Is.EqualTo(1));

			Assert.That(dto.NullableProperty, Is.EqualTo(2));



			// test nullables

			m_source.NullableProperty = null;

			dto = asm.AssembleFrom(m_source);

			Assert.That(dto.NullableProperty, Is.Null);

		}



		[Test]

		public void TestXmlGenerics()

		{

			IAssembler<XmlGenericEntityDTO, GenericEntity<int>> asm = CreateXmlAssembler();



			XmlGenericEntityDTO xmlDto = asm.AssembleFrom(m_source);

			Assert.That(xmlDto.Id,Is.EqualTo(1));

			Assert.That(xmlDto.NullableProperty, Is.EqualTo(2));



			// test nullables

			m_source.NullableProperty = null;

			xmlDto = asm.AssembleFrom(m_source);

			Assert.That(xmlDto.NullableProperty, Is.Null);

		}



		public static void ConvertByRef<T>(ref T target, ref T source)

		{

			target = source;

		}

	}

}