Testcase for NEST 1.0.2 enum as string serialization failing

class1.cs

using System;
using System.Text;
using Nest;
using NUnit.Framework;

namespace ClassLibrary1
{
  public class MyObject
  {
    public MyEnum MyEnum { get; set; }
  }
  public enum MyEnum
  {
    Foo = 0, Bar = 1
  }

  [TestFixture]
  public class Tests
  {
    [Test]
    public void ShouldSerialize_Enum_AsString()
    {
      var query = new FilterDescriptor<MyObject>().Term(t => t.MyEnum, MyEnum.Foo);
      var serialized = TestElasticClient.Serialize(query);
      Assert.That(serialized.Contains("Foo"), "enum should be serialized as Foo instead of 0. Json= "+serialized);
    }
  }
  
    /// <summary>
  /// elasticClient which exposes function to serialize a query object
  /// </summary>
  /// <remarks>
  /// based on https://github.com/elasticsearch/elasticsearch-net/blob/master/src/Tests/Nest.Tests.Unit/TestElasticClient.cs
  /// </remarks>
  public static class TestElasticClient
  {
    public static ElasticClient Client;
    public static ConnectionSettings Settings;
    static TestElasticClient()
    {
      Settings = new ConnectionSettings(new Uri("http://localhost:9200"))
        .SetDefaultIndex("nest_test_data")
        .AddContractJsonConverters(
          t => typeof(Enum).IsAssignableFrom(t) ? new Newtonsoft.Json.Converters.StringEnumConverter() : null
        );

      Client = new ElasticClient(Settings);
    }

    public static string Serialize<T>(T obj) where T : class
    {
      return Encoding.UTF8.GetString(Client.Serializer.Serialize(obj));
    }
  }
}

packages.config

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Elasticsearch.Net" version="1.0.2" targetFramework="net45" />
  <package id="NEST" version="1.0.2" targetFramework="net45" />
  <package id="Newtonsoft.Json" version="6.0.1" targetFramework="net45" />
  <package id="NUnit" version="2.6.3" targetFramework="net45" />
</packages>