baseclass should be abstract

Author: Tasteful

src/Tests/Nest.Tests.Integration/Core/Map/BaseMappingTests.cs

@@ -7,7 +7,7 @@
 namespace Nest.Tests.Integration.Core.Map
 {
 	[TestFixture]
-	public class BaseMappingTests : IntegrationTests
+	public abstract class BaseMappingTests : IntegrationTests
 	{
 		[TestFixtureSetUp]
 		public void Initialize()

src/Tests/Nest.Tests.Unit/BaseJsonTests.cs

@@ -17,7 +17,7 @@ public static class UnitTestDefaults
 		public static readonly string DefaultIndex = "nest_test_data";
 	}
 
-	public class BaseJsonTests
+	public abstract class BaseJsonTests
 	{
 		protected readonly IConnectionSettingsValues _settings;
 		/// <summary>

src/Tests/Nest.Tests.Unit/Core/AttributeBasedMap/BaseAttributeMappingTests.cs

@@ -3,7 +3,7 @@
 
 namespace Nest.Tests.Unit.Core.AttributeBasedMap
 {
-	public class BaseAttributeMappingTests : BaseJsonTests
+	public abstract class BaseAttributeMappingTests : BaseJsonTests
 	{
 		protected string CreateMapFor<T>() where T : class
 		{

src/Tests/Nest.Tests.Unit/Core/Indices/Analysis/BaseAnalysisTests.cs

@@ -5,7 +5,7 @@
 namespace Nest.Tests.Unit.Core.Indices.Analysis.Tokenizers
 {
 	[TestFixture]
-	public class BaseAnalysisTests : BaseJsonTests
+	public abstract class BaseAnalysisTests : BaseJsonTests
 	{
 		public IIndicesOperationResponse Analysis(Func<AnalysisDescriptor, AnalysisDescriptor> analysisSelector)
 		{