Fix code generator

Code generator was failing due to a change in how the swagger put
params are defined.
grpc-ecosystem/grpc-gateway#201
Fix a few failing tests.

Nakama.Tests/HttpErrorTest.cs

@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+using System.Collections.Generic;
+using Nakama.TinyJson;
+
 namespace Nakama.Tests.Api
 {
     using System;
@@ -46,7 +49,8 @@ public async Task BadLuaRpcReturnsErrorMessageAndDict()
             await Assert.ThrowsAsync<ApiResponseException>(() => _client.RpcAsync(session, funcid));
             Assert.NotNull(exception.Message);
             Assert.NotEmpty(exception.Message);
-            Assert.Equal("Some error occured.", exception.Message);
+            var decoded = exception.Message.FromJson<Dictionary<string, object>>();
+            Assert.Equal("Some error occured.",  decoded["message"]);
         }
 
         [Fact(Skip = "requires go plugin")]

Nakama.Tests/LinkUnlinkTest.cs

@@ -391,7 +391,7 @@ public async Task ShouldNotUnlinkSteam()
             var session = await _client.AuthenticateCustomAsync(customid);
 
             var ex = await Assert.ThrowsAsync<ApiResponseException>(() => _client.UnlinkSteamAsync(session, "invalid"));
-            Assert.Equal((int) HttpStatusCode.BadRequest, ex.StatusCode);
+            Assert.Equal((int) HttpStatusCode.Unauthorized, ex.StatusCode);
         }
 
         [Fact(Timeout = TestsUtil.TIMEOUT_MILLISECONDS)]
@@ -411,7 +411,7 @@ public async Task ShouldNotUnlinkApple()
             var session = await _client.AuthenticateCustomAsync(customid);
 
             var ex = await Assert.ThrowsAsync<ApiResponseException>(() => _client.UnlinkAppleAsync(session, "invalid"));
-            Assert.Equal((int) HttpStatusCode.BadRequest, ex.StatusCode);
+            Assert.Equal((int) HttpStatusCode.Unauthorized, ex.StatusCode);
         }
     }
 }

Nakama.Tests/RpcTest.cs

@@ -31,7 +31,6 @@ public class RpcTest
         public RpcTest()
         {
             _client = TestsUtil.FromSettingsFile();
-
         }
 
         [Fact(Timeout = TestsUtil.TIMEOUT_MILLISECONDS)]

Nakama.Tests/Socket/WebSocketTest.cs

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 using System;
+using System.Threading;
 using System.Threading.Tasks;
 using Xunit;
 using Xunit.Abstractions;
@@ -65,6 +66,7 @@ public async Task ShouldCreateSocketAndDisconnect()
             _socket.Closed += () => completer.SetResult(true);
 
             await _socket.ConnectAsync(session);
+            await Task.Delay(1000);
             await _socket.CloseAsync();
 
             Assert.True(await completer.Task);