Newtonsoft.Json.Tests\Utilities\DynamicReflectionDelegateFactoryTests.cs

#region License

// Copyright (c) 2007 James Newton-King

//

// Permission is hereby granted, free of charge, to any person

// obtaining a copy of this software and associated documentation

// files (the "Software"), to deal in the Software without

// restriction, including without limitation the rights to use,

// copy, modify, merge, publish, distribute, sublicense, and/or sell

// copies of the Software, and to permit persons to whom the

// Software is furnished to do so, subject to the following

// conditions:

//

// The above copyright notice and this permission notice shall be

// included in all copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

// OTHER DEALINGS IN THE SOFTWARE.

#endregion

#if !PocketPC && !SILVERLIGHT

using System;

using System.Collections.Generic;

using System.Linq;

using System.Reflection;

using System.Text;

using NUnit.Framework;

using Newtonsoft.Json.Utilities;

using Newtonsoft.Json.Tests.TestObjects;

using Newtonsoft.Json.Tests.Serialization;

namespace Newtonsoft.Json.Tests.Utilities

{

  public class DynamicReflectionDelegateFactoryTests : TestFixtureBase

  {

    [Test]

    [ExpectedException(typeof(InvalidCastException), ExpectedMessage = "Unable to cast object of type 'Newtonsoft.Json.Tests.TestObjects.Person' to type 'Newtonsoft.Json.Tests.TestObjects.Movie'.")]

    public void CreateGetWithBadObjectTarget()

    {

      Person p = new Person();

      p.Name = "Hi";

      Func<object, object> setter = DynamicReflectionDelegateFactory.Instance.CreateGet<object>(typeof(Movie).GetProperty("Name"));

      setter(p);

    }

    [Test]

    [ExpectedException(typeof(InvalidCastException), ExpectedMessage = "Unable to cast object of type 'Newtonsoft.Json.Tests.TestObjects.Person' to type 'Newtonsoft.Json.Tests.TestObjects.Movie'.")]

    public void CreateSetWithBadObjectTarget()

    {

      Person p = new Person();

      Movie m = new Movie();

      Action<object, object> setter = DynamicReflectionDelegateFactory.Instance.CreateSet<object>(typeof(Movie).GetProperty("Name"));

      setter(m, "Hi");

      Assert.AreEqual(m.Name, "Hi");

      setter(p, "Hi");

    }

    [Test]

    [ExpectedException(typeof(InvalidCastException), ExpectedMessage = "Specified cast is not valid.")]

    public void CreateSetWithBadTarget()

    {

      object structTest = new StructTest();

      Action<object, object> setter = DynamicReflectionDelegateFactory.Instance.CreateSet<object>(typeof(StructTest).GetProperty("StringProperty"));

      setter(structTest, "Hi");

      Assert.AreEqual("Hi", ((StructTest)structTest).StringProperty);

      setter(new TimeSpan(), "Hi");

    }

    [Test]

    [ExpectedException(typeof(InvalidCastException), ExpectedMessage = "Unable to cast object of type 'System.Version' to type 'System.String'.")]

    public void CreateSetWithBadObjectValue()

    {

      Movie m = new Movie();

      Action<object, object> setter = DynamicReflectionDelegateFactory.Instance.CreateSet<object>(typeof(Movie).GetProperty("Name"));

      setter(m, new Version());

    }

    [Test]

    public void CreateStaticMethodCall()

    {

      MethodInfo castMethodInfo = typeof(JsonSerializerTest.DictionaryKey).GetMethod("op_Implicit", new[] { typeof(string) });

      Assert.IsNotNull(castMethodInfo);

      MethodCall<object, object> call = DynamicReflectionDelegateFactory.Instance.CreateMethodCall<object>(castMethodInfo);

      object result = call(null, "First!");

      Assert.IsNotNull(result);

      JsonSerializerTest.DictionaryKey key = (JsonSerializerTest.DictionaryKey) result;

      Assert.AreEqual("First!", key.Value);

    }

  }

}

#endif