Feature/body uri param split (#203)

* Added support for specifying seperate uri and body parameters
* Added support for different message and handling generic types on socket queries
* Split DataEvent.Topic into StreamId and Symbol properties
* Added support for negative time values parsing
* Added some helper methods for converting DataEvent to CallResult
* Added support for GZip/Deflate automatic decompressing in the default HttpClient
* Updated some testing methods

CryptoExchange.Net/Authentication/AuthenticationProvider.cs

@@ -49,11 +49,11 @@ namespace CryptoExchange.Net.Authentication
         /// <param name="method">The method of the request</param>
         /// <param name="auth">If the requests should be authenticated</param>
         /// <param name="arraySerialization">Array serialization type</param>
-        /// <param name="parameterPosition">The position where the providedParameters should go</param>
         /// <param name="requestBodyFormat">The formatting of the request body</param>
         /// <param name="uriParameters">Parameters that need to be in the Uri of the request. Should include the provided parameters if they should go in the uri</param>
         /// <param name="bodyParameters">Parameters that need to be in the body of the request. Should include the provided parameters if they should go in the body</param>
         /// <param name="headers">The headers that should be send with the request</param>
+        /// <param name="parameterPosition">The position where the providedParameters should go</param>
         public abstract void AuthenticateRequest(
             RestApiClient apiClient,
             Uri uri,

CryptoExchange.Net/Clients/RestApiClient.cs

@@ -150,23 +150,60 @@ namespace CryptoExchange.Net.Clients
         /// <param name="additionalHeaders">Additional headers for this request</param>
         /// <param name="weight">Override the request weight for this request definition, for example when the weight depends on the parameters</param>
         /// <returns></returns>
-        protected virtual async Task<WebCallResult<T>> SendAsync<T>(
+        protected virtual Task<WebCallResult<T>> SendAsync<T>(
             string baseAddress,
             RequestDefinition definition,
             ParameterCollection? parameters,
             CancellationToken cancellationToken,
             Dictionary<string, string>? additionalHeaders = null,
             int? weight = null) where T : class
+        {
+            var parameterPosition = definition.ParameterPosition ?? ParameterPositions[definition.Method];
+            return SendAsync<T>(
+                baseAddress,
+                definition,
+                parameterPosition == HttpMethodParameterPosition.InUri ? parameters : null,
+                parameterPosition == HttpMethodParameterPosition.InBody ? parameters : null,
+                cancellationToken,
+                additionalHeaders,
+                weight);
+        }
+
+        /// <summary>
+        /// Send a request to the base address based on the request definition
+        /// </summary>
+        /// <typeparam name="T">Response type</typeparam>
+        /// <param name="baseAddress">Host and schema</param>
+        /// <param name="definition">Request definition</param>
+        /// <param name="uriParameters">Request query parameters</param>
+        /// <param name="bodyParameters">Request body parameters</param>
+        /// <param name="cancellationToken">Cancellation token</param>
+        /// <param name="additionalHeaders">Additional headers for this request</param>
+        /// <param name="weight">Override the request weight for this request definition, for example when the weight depends on the parameters</param>
+        /// <returns></returns>
+        protected virtual async Task<WebCallResult<T>> SendAsync<T>(
+            string baseAddress,
+            RequestDefinition definition,
+            ParameterCollection? uriParameters,
+            ParameterCollection? bodyParameters,
+            CancellationToken cancellationToken,
+            Dictionary<string, string>? additionalHeaders = null,
+            int? weight = null) where T : class
         {
             int currentTry = 0;
             while (true)
             {
                 currentTry++;
-                var prepareResult = await PrepareAsync(baseAddress, definition, parameters, cancellationToken, additionalHeaders, weight).ConfigureAwait(false);
+                var prepareResult = await PrepareAsync(baseAddress, definition, cancellationToken, additionalHeaders, weight).ConfigureAwait(false);
                 if (!prepareResult)
                     return new WebCallResult<T>(prepareResult.Error!);
 
-                var request = CreateRequest(baseAddress, definition, parameters, additionalHeaders);
+                var request = CreateRequest(
+                    baseAddress,
+                    definition,
+                    uriParameters,
+                    bodyParameters,
+                    additionalHeaders);
                 _logger.RestApiSendRequest(request.RequestId, definition, request.Content, request.Uri.Query, string.Join(", ", request.GetHeaders().Select(h => h.Key + $"=[{string.Join(",", h.Value)}]")));
                 TotalRequestsMade++;
                 var result = await GetResponseAsync<T>(request, definition.RateLimitGate, cancellationToken).ConfigureAwait(false);
@@ -187,7 +224,6 @@ namespace CryptoExchange.Net.Clients
         /// </summary>
         /// <param name="baseAddress">Host and schema</param>
         /// <param name="definition">Request definition</param>
-        /// <param name="parameters">Request parameters</param>
         /// <param name="cancellationToken">Cancellation token</param>
         /// <param name="additionalHeaders">Additional headers for this request</param>
         /// <param name="weight">Override the request weight for this request</param>
@@ -196,7 +232,6 @@ namespace CryptoExchange.Net.Clients
         protected virtual async Task<CallResult> PrepareAsync(
             string baseAddress,
             RequestDefinition definition,
-            ParameterCollection? parameters,
             CancellationToken cancellationToken,
             Dictionary<string, string>? additionalHeaders = null,
             int? weight = null)
@@ -264,25 +299,27 @@ namespace CryptoExchange.Net.Clients
         /// </summary>
         /// <param name="baseAddress">Host and schema</param>
         /// <param name="definition">Request definition</param>
-        /// <param name="parameters">The parameters of the request</param>
+        /// <param name="uriParameters">The query parameters of the request</param>
+        /// <param name="bodyParameters">The body parameters of the request</param>
         /// <param name="additionalHeaders">Additional headers to send with the request</param>
         /// <returns></returns>
         protected virtual IRequest CreateRequest(
             string baseAddress,
             RequestDefinition definition,
-            ParameterCollection? parameters,
+            ParameterCollection? uriParameters,
+            ParameterCollection? bodyParameters,
             Dictionary<string, string>? additionalHeaders)
         {
-            parameters ??= new ParameterCollection();
+            var uriParams = uriParameters == null ? new ParameterCollection() : CreateParameterDictionary(uriParameters);
+            var bodyParams = bodyParameters == null ? new ParameterCollection() : CreateParameterDictionary(bodyParameters);
+
             var uri = new Uri(baseAddress.AppendPath(definition.Path));
-            var parameterPosition = definition.ParameterPosition ?? ParameterPositions[definition.Method];
             var arraySerialization = definition.ArraySerialization ?? ArraySerialization;
             var bodyFormat = definition.RequestBodyFormat ?? RequestBodyFormat;
             var requestId = ExchangeHelpers.NextId();
+            var parameterPosition = definition.ParameterPosition ?? ParameterPositions[definition.Method];
 
             var headers = new Dictionary<string, string>();
-            var uriParameters = parameterPosition == HttpMethodParameterPosition.InUri ? CreateParameterDictionary(parameters) : new Dictionary<string, object>();
-            var bodyParameters = parameterPosition == HttpMethodParameterPosition.InBody ? CreateParameterDictionary(parameters) : new Dictionary<string, object>();
             if (AuthenticationProvider != null)
             {
                 try
@@ -291,13 +328,14 @@ namespace CryptoExchange.Net.Clients
                         this,
                         uri,
                         definition.Method,
-                        uriParameters,
+                        uriParams,
-                        bodyParameters,
+                        bodyParams,
                         headers,
                         definition.Authenticated,
                         arraySerialization,
                         parameterPosition,
-                        bodyFormat);
+                        bodyFormat                        
+                        );
                 }
                 catch (Exception ex)
                 {
@@ -305,18 +343,8 @@ namespace CryptoExchange.Net.Clients
                 }
             }
 
-            // Sanity check
-            foreach (var param in parameters)
-            {
-                if (!uriParameters.ContainsKey(param.Key) && !bodyParameters.ContainsKey(param.Key))
-                {
-                    throw new Exception($"Missing parameter {param.Key} after authentication processing. AuthenticationProvider implementation " +
-                        $"should return provided parameters in either the uri or body parameters output");
-                }
-            }
-
             // Add the auth parameters to the uri, start with a new URI to be able to sort the parameters including the auth parameters            
-            uri = uri.SetParameters(uriParameters, arraySerialization);
+            uri = uri.SetParameters(uriParams, arraySerialization);
 
             var request = RequestFactory.Create(definition.Method, uri, requestId);
             request.Accept = Constants.JsonContentHeader;
@@ -343,8 +371,8 @@ namespace CryptoExchange.Net.Clients
             if (parameterPosition == HttpMethodParameterPosition.InBody)
             {
                 var contentType = bodyFormat == RequestBodyFormat.Json ? Constants.JsonContentHeader : Constants.FormContentHeader;
-                if (bodyParameters.Count != 0)
+                if (bodyParams.Count != 0)
-                    WriteParamBody(request, bodyParameters, contentType);
+                    WriteParamBody(request, bodyParams, contentType);
                 else
                     request.SetContent(RequestBodyEmptyContent, contentType);
             }
@@ -739,7 +767,8 @@ namespace CryptoExchange.Net.Clients
                         signed,
                         arraySerialization,
                         parameterPosition,
-                        bodyFormat);
+                        bodyFormat
+                        );
                 }
                 catch (Exception ex)
                 {

CryptoExchange.Net/Clients/SocketApiClient.cs

@@ -278,10 +278,11 @@ namespace CryptoExchange.Net.Clients
         /// <summary>
         /// Send a query on a socket connection to the BaseAddress and wait for the response
         /// </summary>
-        /// <typeparam name="T">Expected result type</typeparam>
+        /// <typeparam name="THandlerResponse">Expected result type</typeparam>
+        /// <typeparam name="TServerResponse">The type returned to the caller</typeparam>
         /// <param name="query">The query</param>
         /// <returns></returns>
-        protected virtual Task<CallResult<T>> QueryAsync<T>(Query<T> query)
+        protected virtual Task<CallResult<THandlerResponse>> QueryAsync<TServerResponse, THandlerResponse>(Query<TServerResponse, THandlerResponse> query)
         {
             return QueryAsync(BaseAddress, query);
         }
@@ -289,14 +290,15 @@ namespace CryptoExchange.Net.Clients
         /// <summary>
         /// Send a query on a socket connection and wait for the response
         /// </summary>
-        /// <typeparam name="T">The expected result type</typeparam>
+        /// <typeparam name="THandlerResponse">Expected result type</typeparam>
+        /// <typeparam name="TServerResponse">The type returned to the caller</typeparam>
         /// <param name="url">The url for the request</param>
         /// <param name="query">The query</param>
         /// <returns></returns>
-        protected virtual async Task<CallResult<T>> QueryAsync<T>(string url, Query<T> query)
+        protected virtual async Task<CallResult<THandlerResponse>> QueryAsync<TServerResponse, THandlerResponse>(string url, Query<TServerResponse, THandlerResponse> query)
         {
             if (_disposing)
-                return new CallResult<T>(new InvalidOperationError("Client disposed, can't query"));
+                return new CallResult<THandlerResponse>(new InvalidOperationError("Client disposed, can't query"));
 
             SocketConnection socketConnection;
             var released = false;
@@ -305,7 +307,7 @@ namespace CryptoExchange.Net.Clients
             {
                 var socketResult = await GetSocketConnection(url, query.Authenticated).ConfigureAwait(false);
                 if (!socketResult)
-                    return socketResult.As<T>(default);
+                    return socketResult.As<THandlerResponse>(default);
 
                 socketConnection = socketResult.Data;
 
@@ -318,7 +320,7 @@ namespace CryptoExchange.Net.Clients
 
                 var connectResult = await ConnectIfNeededAsync(socketConnection, query.Authenticated).ConfigureAwait(false);
                 if (!connectResult)
-                    return new CallResult<T>(connectResult.Error!);
+                    return new CallResult<THandlerResponse>(connectResult.Error!);
             }
             finally
             {
@@ -329,10 +331,10 @@ namespace CryptoExchange.Net.Clients
             if (socketConnection.PausedActivity)
             {
                 _logger.HasBeenPausedCantSendQueryAtThisMoment(socketConnection.SocketId);
-                return new CallResult<T>(new ServerError("Socket is paused"));
+                return new CallResult<THandlerResponse>(new ServerError("Socket is paused"));
             }
 
-            return await socketConnection.SendAndWaitQueryAsync(query).ConfigureAwait(false);
+            return await socketConnection.SendAndWaitQueryAsync<TServerResponse, THandlerResponse>(query).ConfigureAwait(false);
         }
 
         /// <summary>

CryptoExchange.Net/Converters/SystemTextJson/DateTimeConverter.cs

@@ -154,6 +154,8 @@ namespace CryptoExchange.Net.Converters.SystemTextJson
             if (double.TryParse(stringValue, NumberStyles.Float, CultureInfo.InvariantCulture, out var doubleValue))
             {
                 // Parse 1637745563.000 format
+                if (doubleValue <= 0)
+                    return default;
                 if (doubleValue < 19999999999)
                     return ConvertFromSeconds(doubleValue);
                 if (doubleValue < 19999999999999)

CryptoExchange.Net/Converters/SystemTextJson/SystemTextJsonMessageAccessor.cs

@@ -68,6 +68,11 @@ namespace CryptoExchange.Net.Converters.SystemTextJson
                 var info = $"Deserialize JsonException: {ex.Message}, Path: {ex.Path}, LineNumber: {ex.LineNumber}, LinePosition: {ex.BytePositionInLine}";
                 return new CallResult<T>(new DeserializeError(info, OriginalDataAvailable ? GetOriginalString() : "[Data only available when OutputOriginal = true in client options]"));
             }
+            catch (Exception ex)
+            {
+                var info = $"Unknown exception: {ex.Message}";
+                return new CallResult<T>(new DeserializeError(info, OriginalDataAvailable ? GetOriginalString() : "[Data only available when OutputOriginal = true in client options]"));
+            }
         }
 
         /// <inheritdoc />

CryptoExchange.Net/Objects/Sockets/DataEvent.cs

@@ -14,9 +14,14 @@ namespace CryptoExchange.Net.Objects.Sockets
         public DateTime Timestamp { get; set; }
 
         /// <summary>
-        /// The topic of the update, what symbol/asset etc..
+        /// The stream producing the update
         /// </summary>
-        public string? Topic { get; set; }
+        public string? StreamId { get; set; }
+
+        /// <summary>
+        /// The symbol the update is for
+        /// </summary>
+        public string? Symbol { get; set; }
 
         /// <summary>
         /// The original data that was received, only available when OutputOriginalData is set to true in the client options
@@ -33,10 +38,11 @@ namespace CryptoExchange.Net.Objects.Sockets
         /// </summary>
         public T Data { get; set; }
 
-        internal DataEvent(T data, string? topic, string? originalData, DateTime timestamp, SocketUpdateType? updateType)
+        internal DataEvent(T data, string? streamId, string? symbol, string? originalData, DateTime timestamp, SocketUpdateType? updateType)
         {
             Data = data;
-            Topic = topic;
+            StreamId = streamId;
+            Symbol = symbol;
             OriginalData = originalData;
             Timestamp = timestamp;
             UpdateType = updateType;
@@ -50,7 +56,7 @@ namespace CryptoExchange.Net.Objects.Sockets
         /// <returns></returns>
         public DataEvent<K> As<K>(K data)
         {
-            return new DataEvent<K>(data, Topic, OriginalData, Timestamp, UpdateType);
+            return new DataEvent<K>(data, StreamId, Symbol, OriginalData, Timestamp, UpdateType);
         }
 
         /// <summary>
@@ -58,11 +64,11 @@ namespace CryptoExchange.Net.Objects.Sockets
         /// </summary>
         /// <typeparam name="K">The type of the new data</typeparam>
         /// <param name="data">The new data</param>
-        /// <param name="topic">The new topic</param>
+        /// <param name="symbol">The new symbol</param>
         /// <returns></returns>
-        public DataEvent<K> As<K>(K data, string? topic)
+        public DataEvent<K> As<K>(K data, string? symbol)
         {
-            return new DataEvent<K>(data, topic, OriginalData, Timestamp, UpdateType);
+            return new DataEvent<K>(data, StreamId, symbol, OriginalData, Timestamp, UpdateType);
         }
 
         /// <summary>
@@ -70,12 +76,73 @@ namespace CryptoExchange.Net.Objects.Sockets
         /// </summary>
         /// <typeparam name="K">The type of the new data</typeparam>
         /// <param name="data">The new data</param>
-        /// <param name="topic">The new topic</param>
+        /// <param name="streamId">The new stream id</param>
+        /// <param name="symbol">The new symbol</param>
         /// <param name="updateType">The type of update</param>
         /// <returns></returns>
-        public DataEvent<K> As<K>(K data, string? topic, SocketUpdateType updateType)
+        public DataEvent<K> As<K>(K data, string streamId, string? symbol, SocketUpdateType updateType)
         {
-            return new DataEvent<K>(data, topic, OriginalData, Timestamp, updateType);
+            return new DataEvent<K>(data, streamId, symbol, OriginalData, Timestamp, updateType);
+        }
+
+        /// <summary>
+        /// Specify the symbol
+        /// </summary>
+        /// <param name="symbol"></param>
+        /// <returns></returns>
+        public DataEvent<T> WithSymbol(string symbol)
+        {
+            Symbol = symbol;
+            return this;
+        }
+
+        /// <summary>
+        /// Specify the update type
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        public DataEvent<T> WithUpdateType(SocketUpdateType type)
+        {
+            UpdateType = type;
+            return this;
+        }
+
+        /// <summary>
+        /// Specify the stream id
+        /// </summary>
+        /// <param name="streamId"></param>
+        /// <returns></returns>
+        public DataEvent<T> WithStreamId(string streamId)
+        {
+            StreamId = streamId;
+            return this;
+        }
+
+        /// <summary>
+        /// Create a CallResult from this DataEvent
+        /// </summary>
+        /// <returns></returns>
+        public CallResult<T> ToCallResult()
+        {
+            return new CallResult<T>(Data, OriginalData, null);
+        }
+
+        /// <summary>
+        /// Create a CallResult from this DataEvent
+        /// </summary>
+        /// <returns></returns>
+        public CallResult<K> ToCallResult<K>(K data)
+        {
+            return new CallResult<K>(data, OriginalData, null);
+        }
+
+        /// <summary>
+        /// Create a CallResult from this DataEvent
+        /// </summary>
+        /// <returns></returns>
+        public CallResult<K> ToCallResult<K>(Error error)
+        {
+            return new CallResult<K>(default, OriginalData, error);
         }
     }
 }

CryptoExchange.Net/Requests/RequestFactory.cs

@@ -19,6 +19,7 @@ namespace CryptoExchange.Net.Requests
             if (client == null)
             {
                 var handler = new HttpClientHandler();
+                handler.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
                 if (proxy != null)
                 {
                     handler.Proxy = new WebProxy

CryptoExchange.Net/Sockets/Query.cs

@@ -1,6 +1,7 @@
 using CryptoExchange.Net.Interfaces;
 using CryptoExchange.Net.Objects;
 using CryptoExchange.Net.Objects.Sockets;
+using CryptoExchange.Net.Requests;
 using System;
 using System.Collections.Generic;
 using System.Threading;
@@ -145,16 +146,17 @@ namespace CryptoExchange.Net.Sockets
     /// <summary>
     /// Query
     /// </summary>
-    /// <typeparam name="TResponse">Response object type</typeparam>
+    /// <typeparam name="TServerResponse">The type returned from the server</typeparam>
-    public abstract class Query<TResponse> : Query
+    /// <typeparam name="THandlerResponse">The type to be returned to the caller</typeparam>
+    public abstract class Query<TServerResponse, THandlerResponse> : Query
     {
         /// <inheritdoc />
-        public override Type? GetMessageType(IMessageAccessor message) => typeof(TResponse);
+        public override Type? GetMessageType(IMessageAccessor message) => typeof(TServerResponse);
 
         /// <summary>
         /// The typed call result
         /// </summary>
-        public CallResult<TResponse>? TypedResult => (CallResult<TResponse>?)Result;
+        public CallResult<THandlerResponse>? TypedResult => (CallResult<THandlerResponse>?)Result;
 
         /// <summary>
         /// ctor
@@ -171,7 +173,7 @@ namespace CryptoExchange.Net.Sockets
         {
             Completed = true;
             Response = message.Data;
-            Result = HandleMessage(connection, message.As((TResponse)message.Data));
+            Result = HandleMessage(connection, message.As((TServerResponse)message.Data));
             _event.Set();
             ContinueAwaiter?.WaitOne();
             return Result;
@@ -183,7 +185,7 @@ namespace CryptoExchange.Net.Sockets
         /// <param name="connection"></param>
         /// <param name="message"></param>
         /// <returns></returns>
-        public virtual CallResult<TResponse> HandleMessage(SocketConnection connection, DataEvent<TResponse> message) => new CallResult<TResponse>(message.Data, message.OriginalData, null);
+        public abstract CallResult<THandlerResponse> HandleMessage(SocketConnection connection, DataEvent<TServerResponse> message);
 
         /// <inheritdoc />
         public override void Timeout()
@@ -192,7 +194,7 @@ namespace CryptoExchange.Net.Sockets
                 return;
 
             Completed = true;
-            Result = new CallResult<TResponse>(new CancellationRequestedError(null, "Query timeout", null));
+            Result = new CallResult<THandlerResponse>(new CancellationRequestedError(null, "Query timeout", null));
             ContinueAwaiter?.Set();
             _event.Set();
         }
@@ -200,10 +202,35 @@ namespace CryptoExchange.Net.Sockets
         /// <inheritdoc />
         public override void Fail(Error error)
         {
-            Result = new CallResult<TResponse>(error);
+            Result = new CallResult<THandlerResponse>(error);
             Completed = true;
             ContinueAwaiter?.Set();
             _event.Set();
         }
     }
+
+    /// <summary>
+    /// Query
+    /// </summary>
+    /// <typeparam name="TResponse">Response object type</typeparam>
+    public abstract class Query<TResponse> : Query<TResponse, TResponse>
+    {
+        /// <summary>
+        /// ctor
+        /// </summary>
+        /// <param name="request"></param>
+        /// <param name="authenticated"></param>
+        /// <param name="weight"></param>
+        protected Query(object request, bool authenticated, int weight = 1) : base(request, authenticated, weight)
+        {
+        }
+
+        /// <summary>
+        /// Handle the query response
+        /// </summary>
+        /// <param name="connection"></param>
+        /// <param name="message"></param>
+        /// <returns></returns>
+        public override CallResult<TResponse> HandleMessage(SocketConnection connection, DataEvent<TResponse> message) => message.ToCallResult();
+    }
 }

CryptoExchange.Net/Sockets/SocketConnection.cs

@@ -498,7 +498,7 @@ namespace CryptoExchange.Net.Sockets
                     try
                     {
                         var innerSw = Stopwatch.StartNew();
-                        processor.Handle(this, new DataEvent<object>(deserialized, null, originalData, receiveTime, null));
+                        processor.Handle(this, new DataEvent<object>(deserialized, null, null, originalData, receiveTime, null));
                         totalUserTime += (int)innerSw.ElapsedMilliseconds;
                     }
                     catch (Exception ex)
@@ -696,14 +696,15 @@ namespace CryptoExchange.Net.Sockets
         /// <summary>
         /// Send a query request and wait for an answer
         /// </summary>
-        /// <typeparam name="T">Query response type</typeparam>
+        /// <typeparam name="THandlerResponse">Expected result type</typeparam>
+        /// <typeparam name="TServerResponse">The type returned to the caller</typeparam>
         /// <param name="query">Query to send</param>
         /// <param name="continueEvent">Wait event for when the socket message handler can continue</param>
         /// <returns></returns>
-        public virtual async Task<CallResult<T>> SendAndWaitQueryAsync<T>(Query<T> query, ManualResetEvent? continueEvent = null)
+        public virtual async Task<CallResult<THandlerResponse>> SendAndWaitQueryAsync<TServerResponse, THandlerResponse>(Query<TServerResponse, THandlerResponse> query, ManualResetEvent? continueEvent = null)
         {
             await SendAndWaitIntAsync(query, continueEvent).ConfigureAwait(false);
-            return query.TypedResult ?? new CallResult<T>(new ServerError("Timeout"));
+            return query.TypedResult ?? new CallResult<THandlerResponse>(new ServerError("Timeout"));
         }
 
         private async Task SendAndWaitIntAsync(Query query, ManualResetEvent? continueEvent)

CryptoExchange.Net/Testing/Comparers/SystemTextJsonComparer.cs

@@ -52,8 +52,13 @@ namespace CryptoExchange.Net.Testing.Comparers
                     else
                     {
                         if (dict[dictProp.Name] == default && dictProp.Value.Type != JTokenType.Null)
+                        {
+                            if (dictProp.Value.ToString() == "")
+                                continue;
+
                             // Property value not correct
                             throw new Exception($"{method}: Dictionary entry `{dictProp.Name}` has no value while input json has value {dictProp.Value}");
+                        }
                     }
                 }
             }
@@ -162,7 +167,7 @@ namespace CryptoExchange.Net.Testing.Comparers
 
                     if (dictProp.Value.Type == JTokenType.Object)
                     {
-                        CheckObject(method, dictProp, dict[dictProp.Name]!, ignoreProperties);
+                        CheckPropertyValue(method, dictProp.Value, dict[dictProp.Name]!, dict[dictProp.Name].GetType(), null, null, ignoreProperties);
                     }
                     else
                     {
@@ -180,7 +185,10 @@ namespace CryptoExchange.Net.Testing.Comparers
                 var enumerator = list.GetEnumerator();
                 foreach (JToken jtoken in jObjs)
                 {
-                    enumerator.MoveNext();
+                    var moved = enumerator.MoveNext();
+                    if (!moved)
+                        throw new Exception("Enumeration not moved; incorrect amount of results?");
+
                     var typeConverter = enumerator.Current.GetType().GetCustomAttributes(typeof(JsonConverterAttribute), true);
                     if (typeConverter.Length != 0 && ((JsonConverterAttribute)typeConverter.First()).ConverterType != typeof(ArrayConverter))
                         // Custom converter for the type, skip
@@ -260,9 +268,9 @@ namespace CryptoExchange.Net.Testing.Comparers
                 else if (objectValue is DateTime time)
                 {
                     if (time != DateTimeConverter.ParseFromString(jsonValue.Value<string>()!))
-                        throw new Exception($"{method}: {property} not equal: {jsonValue.Value<decimal>()} vs {time}");
+                        throw new Exception($"{method}: {property} not equal: {jsonValue.Value<string>()} vs {time}");
                 }
-                else if (propertyType.IsEnum)
+                else if (propertyType.IsEnum || Nullable.GetUnderlyingType(propertyType)?.IsEnum == true)
                 {
                     // TODO enum comparing
                 }
@@ -278,6 +286,10 @@ namespace CryptoExchange.Net.Testing.Comparers
                     if (time != DateTimeConverter.ParseFromDouble(jsonValue.Value<long>()!))
                         throw new Exception($"{method}: {property} not equal: {jsonValue.Value<decimal>()} vs {time}");
                 }
+                else if (propertyType.IsEnum || Nullable.GetUnderlyingType(propertyType)?.IsEnum == true)
+                {
+                    // TODO enum comparing
+                }
                 else if (jsonValue.Value<long>() != Convert.ToInt64(objectValue))
                 {
                     throw new Exception($"{method}: {property} not equal: {jsonValue.Value<long>()} vs {Convert.ToInt64(objectValue)}");

CryptoExchange.Net/Testing/SocketSubscriptionValidator.cs

@@ -109,6 +109,7 @@ namespace CryptoExchange.Net.Testing
                     if (lastMessage == null)
                         throw new Exception($"{name} expected to {line} to be send to server but did not receive anything");
 
+
                     var lastMessageJson = JToken.Parse(lastMessage);
                     var expectedJson = JToken.Parse(line.Substring(2));
                     foreach(var item in expectedJson)
@@ -121,6 +122,12 @@ namespace CryptoExchange.Net.Testing
                                 overrideKey = val.ToString();
                                 overrideValue = lastMessageJson[prop.Name]?.Value<string>();
                             }
+                            else if (val.ToString() == "-999")
+                            {
+                                // -999 value is used to replace parts or response messages
+                                overrideKey = val.ToString();
+                                overrideValue = lastMessageJson[prop.Name]?.Value<decimal>().ToString();
+                            }
                             else if (lastMessageJson[prop.Name]?.Value<string>() != val.ToString() && ignoreProperties?.Contains(prop.Name) != true)
                                 throw new Exception($"{name} Expected {prop.Name} to be {val}, but was {lastMessageJson[prop.Name]?.Value<string>()}");
                         }

CryptoExchange.Net/Testing/TestHelpers.cs

@@ -136,8 +136,9 @@ namespace CryptoExchange.Net.Testing
                 headers,
                 true,
                 client.ArraySerialization, 
-                client.ParameterPositions[method], 
+                client.ParameterPositions[method],
-                client.RequestBodyFormat);
+                client.RequestBodyFormat
+                );
 
             var signature = getSignature(uriParams, bodyParams, headers);