added objectid tests

CoreIntegrationTests/Infrastructure/MongoDbTestFixture.cs

@@ -5,13 +5,11 @@ using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
 
-
 namespace CoreIntegrationTests.Infrastructure
 {
-
     public class MongoDbTestFixture<T, TKey> : IDisposable
-    where T : IDocument<TKey>, new()
-    where TKey : IEquatable<TKey>
+        where T : IDocument<TKey>, new()
+        where TKey : IEquatable<TKey>
     {
 
         public IMongoDbContext Context;