One request per port

SuccessfulCodeTools.Tests/StringExtensionsTests.cs

@@ -0,0 +1,19 @@
+using System;
+using Xunit;
+
+namespace SuccessfulCodeTools.Tests
+{
+    public class StringExtensionsTests
+    {
+        [Theory]
+        [InlineData("CaMel_cAse", "CamelCase")]
+        public void CheckSnakeCaseToCamelCase(string input, string expectedOutput)
+        {
+            //Arrange
+            //Act
+            var result = input.FromSnakeToCamel();
+            //Assert
+            Assert.Equal(expectedOutput, result);
+        }
+    }
+}

SuccessfulCodeTools.Tests/SuccessfulCodeTools.Tests.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
+    <PackageReference Include="xunit" Version="2.4.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.0" />
+    <PackageReference Include="coverlet.collector" Version="1.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SuccessfulCodeTools\SuccessfulCodeTools.csproj" />
+  </ItemGroup>
+
+</Project>

SuccessfulCodeTools.sln

@@ -3,7 +3,9 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 16
 VisualStudioVersion = 16.0.29424.173
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SuccessfulCodeTools", "SuccessfulCodeTools\SuccessfulCodeTools.csproj", "{0CF60384-D7C3-491D-B3FD-73BDA7EE8B89}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SuccessfulCodeTools", "SuccessfulCodeTools\SuccessfulCodeTools.csproj", "{0CF60384-D7C3-491D-B3FD-73BDA7EE8B89}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SuccessfulCodeTools.Tests", "SuccessfulCodeTools.Tests\SuccessfulCodeTools.Tests.csproj", "{43979EEF-19B8-46B1-A32B-CC99879F5168}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -15,6 +17,10 @@ Global
 		{0CF60384-D7C3-491D-B3FD-73BDA7EE8B89}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{0CF60384-D7C3-491D-B3FD-73BDA7EE8B89}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{0CF60384-D7C3-491D-B3FD-73BDA7EE8B89}.Release|Any CPU.Build.0 = Release|Any CPU
+		{43979EEF-19B8-46B1-A32B-CC99879F5168}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{43979EEF-19B8-46B1-A32B-CC99879F5168}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{43979EEF-19B8-46B1-A32B-CC99879F5168}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{43979EEF-19B8-46B1-A32B-CC99879F5168}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

SuccessfulCodeTools/Extensions/DecimalExtensions.cs

@@ -0,0 +1,10 @@
+namespace SuccessfulCodeTools.Extensions
+{
+    public static class DecimalExtensions
+    {
+        public static decimal PercentOf(this decimal value, decimal total)
+        {
+            return (value / 100) * total;
+        }
+    }
+}

SuccessfulCodeTools/Extensions/StringExtensions.cs

@@ -1,5 +1,6 @@
 using Newtonsoft.Json;
 using System;
+using System.Text.RegularExpressions;
 
 namespace SuccessfulCodeTools
 {
@@ -19,5 +20,13 @@ namespace SuccessfulCodeTools
         {
             return Int32.Parse(value);
         }
+
+        public static string FromSnakeToCamel(this string str)
+        {
+            var lowerCasedValue = str.ToLowerInvariant();
+            return Regex.Replace(lowerCasedValue, "(^[a-zA-Z]|_([a-zA-Z]))", m => {
+                return m.Value.TrimStart('_').ToUpper();
+            }, RegexOptions.Compiled);
+        }
     }
 }

SuccessfulCodeTools/LowLevelHttpClient/CustomHttpClient.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.IO;
 using System.IO.Compression;
@@ -7,6 +8,7 @@ using System.Net;
 using System.Net.Http;
 using System.Net.Sockets;
 using System.Text;
+using System.Threading;
 using System.Threading.Tasks;
 
 namespace SuccessfulCodeTools.LowLevelHttpClient
@@ -15,6 +17,7 @@ namespace SuccessfulCodeTools.LowLevelHttpClient
     {
         public int? OutgoingPort { get; set; }
         public KeyValueCollection<string, string> DefaultHeaders = new KeyValueCollection<string, string>();
+        private static ConcurrentDictionary<int, object> _dictionary = new ConcurrentDictionary<int, object>();
         public CustomHttpClient(int? outgoingPort = null)
         {
             OutgoingPort = outgoingPort;
@@ -22,11 +25,13 @@ namespace SuccessfulCodeTools.LowLevelHttpClient
 
         public async Task<CustomHttpResponseMessage> SendAsync(CustomHttpRequestMessage message, int? outgoingPort = null)
         {
+
             var defaultHeaders = DefaultHeaders.Where(e => !message.Headers.Contains(e)).ToArray();
             message.Headers.AddRange(defaultHeaders);
             
             var outBoundPort = outgoingPort ?? OutgoingPort ?? 0;
-            string result = string.Empty;
+            var semphoreLock = (SemaphoreSlim)_dictionary.GetOrAdd(outBoundPort, e => new SemaphoreSlim(1));
+            semphoreLock.Wait();
             var ipLocalEndPoint = new IPEndPoint(IPAddress.Any, outBoundPort);
             using (var tcp = new TcpClient(ipLocalEndPoint))
             {
@@ -52,10 +57,11 @@ namespace SuccessfulCodeTools.LowLevelHttpClient
                 {
                     await stream.CopyToAsync(memory);
                     tcp.Client.Disconnect(true);
+                    semphoreLock.Release();
                     return new CustomHttpResponseMessage(memory);
                 }
             }
-        }
 
+        }
     }
 }