[GitHub] [tinkerpop] dzmitry-lahoda commented on issue #1250: fix for https://issues.apache.org/jira/browse/TINKERPOP-2192

[GitBox]

dzmitry-lahoda commented on issue #1250: fix for 
https://issues.apache.org/jira/browse/TINKERPOP-2192
URL: https://github.com/apache/tinkerpop/pull/1250#issuecomment-589872512
 
 
   ```
   #region License
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
    *
    *     http://www.apache.org/licenses/LICENSE-2.0
    *
    * Unless required by applicable law or agreed to in writing,
    * software distributed under the License is distributed on an
    * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    * KIND, either express or implied.  See the License for the
    * specific language governing permissions and limitations
    * under the License.
    */
   
   #endregion
   
   using Gremlin.Net.Driver;
   using Gremlin.Net.Driver.Messages;
   using Newtonsoft.Json;
   using Newtonsoft.Json.Linq;
   using System;
   using System.Text;
   using Xunit;
   
   namespace Gremlin.Net.UnitTest.Driver
   {
       // Will be used in future to switch to new .NET Core Json deserializer
       public class JsonMessageSerializerTests
       {
           [Fact]
           public void NullError()
           {
               var sut = new 
JsonMessageSerializer(GremlinClient.DefaultMimeType);
               Assert.Throws<ArgumentNullException>(()=> 
sut.DeserializeMessage<ResponseMessage<JToken>>(null));
           }
   
           [Fact]
           public void EmptyToNull()
           {
               var sut = new 
JsonMessageSerializer(GremlinClient.DefaultMimeType);
               Assert.Null(sut.DeserializeMessage<ResponseMessage<JToken>>(new 
byte[0]));
               var ofEmpty = Encoding.UTF8.GetBytes("");
               
Assert.Null(sut.DeserializeMessage<ResponseMessage<JToken>>(ofEmpty));
               var ofNull = Encoding.UTF8.GetBytes("null");
               
Assert.Null(sut.DeserializeMessage<ResponseMessage<JToken>>(ofNull));
           }
   
           [Fact]
           public void Any()
           {
               var sut = new 
JsonMessageSerializer(GremlinClient.DefaultMimeType);
               var obj = Encoding.UTF8.GetBytes("{}");
               
Assert.NotNull(sut.DeserializeMessage<ResponseMessage<JToken>>(obj));
               var arr = Encoding.UTF8.GetBytes("[]");
   
               Assert.Throws<JsonSerializationException>(()=> 
sut.DeserializeMessage<ResponseMessage<JToken>>(arr));
           }
       }
   }
   ```
   
   Seem happend when data lost over network.

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