trying to reproduce #319 in an integration test

Author: Mpdreamz

Diff for: src/Nest.Tests.Integration/Reproduce/ReproduceTests.cs renamed to src/Nest.Tests.Integration/Reproduce/Reproduce211Tests.cs

@@ -13,7 +13,7 @@ namespace Nest.Tests.Integration.Reproduce
 	/// tests to reproduce reported errors
 	/// </summary>
 	[TestFixture]
-	public class ReproduceTests : IntegrationTests
+	public class Reproduce211Tests : IntegrationTests
 	{
 		public class Post
 		{

Diff for: src/Nest.Tests.Integration/Reproduce/Reproduce319Tests.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Nest.Tests.MockData;
+using Nest.Tests.MockData.Domain;
+using NUnit.Framework;
+using System.Diagnostics;
+using FluentAssertions;
+
+namespace Nest.Tests.Integration.Reproduce
+{
+	/// <summary>
+	/// tests to reproduce reported errors
+	/// </summary>
+	[TestFixture]
+	public class Reproduce319Tests : IntegrationTests
+	{
+		
+		/// <summary>
+		///	https://github.com/Mpdreamz/NEST/issues/319
+		/// </summary>
+		[Test]
+		public void CreateIndexShouldNotThrowNullReference()
+		{
+			var settings = new IndexSettings();
+			settings.Similarity = new SimilaritySettings();
+			settings.NumberOfReplicas = 1;
+			settings.NumberOfShards = 5;
+			settings.Add("index.refresh_interval", "10s");
+			settings.Add("merge.policy.merge_factor", "10");
+			settings.Add("search.slowlog.threshold.fetch.warn", "1s");
+			settings.Analysis.Analyzers.Add(new KeyValuePair<string, AnalyzerBase>("keyword", new KeywordAnalyzer()));
+			settings.Analysis.Analyzers.Add(new KeyValuePair<string, AnalyzerBase>("simple", new SimpleAnalyzer()));
+
+			Assert.DoesNotThrow(() =>
+			{
+				var idxRsp = this._client.CreateIndex(ElasticsearchConfiguration.NewUniqueIndexName(), settings);
+				Assert.IsTrue(idxRsp.IsValid, idxRsp.ConnectionStatus.ToString());			
+			});
+		}
+
+	}
+}

Diff for: src/Nest/Domain/Mapping/Attributes/ElasticPropertyAttribute.cs

@@ -8,7 +8,7 @@ public class ElasticPropertyAttribute : Attribute, IElasticPropertyAttribute
 		public bool AddSortField { get; set; }
 
 		public bool OptOut { get; set; }
-		
+
 		public string Name { get; set; }
 
 		public FieldType Type { get; set; }
@@ -22,7 +22,7 @@ public class ElasticPropertyAttribute : Attribute, IElasticPropertyAttribute
 		public string IndexAnalyzer { get; set; }
 		public string SearchAnalyzer { get; set; }
 		public string NullValue { get; set; }
-    public string Similarity { get; set; }
+		public string Similarity { get; set; }
 
 		public bool OmitNorms { get; set; }
 		public bool OmitTermFrequencyAndPositions { get; set; }
@@ -44,16 +44,16 @@ public ElasticPropertyAttribute()
 		{
 			//make sure we match ES's defaults
 			this.Boost = 1;
-			this.TermVector = TermVectorOption.no; 
+			this.TermVector = TermVectorOption.no;
 			this.Index = FieldIndexOption.analyzed;
-		
+
 			this.IncludeInAll = true;
 			this.PrecisionStep = 4;
 		}
 
-        public void Accept(IElasticPropertyVisitor visitor)
-        {
-            visitor.Visit(this);
-        }
+		public void Accept(IElasticPropertyVisitor visitor)
+		{
+			visitor.Visit(this);
+		}
 	}
 }