Added sort and multisearch tests

Author: Mpdreamz

src/Nest.Tests.Integration/Core/MultiSearch/MultiSearchTests.cs

@@ -75,6 +75,20 @@ public void MultipleComplexSearches()
 			result.GetResponses<ElasticSearchProject>().Should().NotBeEmpty();
 			result.GetResponses<Person>().Should().NotBeEmpty();
 		}
+		[Test]
+		public void MultiSearchShouldReturnErrorProperty()
+		{
+			var result = this._client.MultiSearch(b => b
+				.FixedPath("myindex", "mytype")
+				.Search<ElasticSearchProject>(s => s.MatchAll().Preference("_primary").Routing("customvalue1").SearchType(SearchType.DfsQueryAndFetch))
+				.Search<Person>(s => s.Query(q=>q.Term("THIS FIELD DOES NOT EXIST", "BOOM")))
+			);
+			var status = result.ConnectionStatus;
+			result.IsValid.Should().BeTrue();
+			var personResponse = result.GetResponses<Person>().First();
+			personResponse.IsValid.Should().BeFalse();
+
+		}
 
 	}
 }

src/Nest.Tests.Unit/Core/MultiSearch/MultiSearchTests.cs

@@ -59,5 +59,6 @@ public void MultiSearchRespectsSearchTypePreferenceAndRouting()
 
 
 		}
+		
 	}
 }

src/Nest.Tests.Unit/Nest.Tests.Unit.csproj

@@ -622,6 +622,9 @@
     <None Include="Internals\Serialize\SimpleClassUsesCamelCase.json">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
+    <None Include="Search\Sort\RandomScriptSort.json">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
     <None Include="Test.settings">
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Test.Designer.cs</LastGenOutput>