Add benchmarking tool

Useful for testing performance-related changes

src/React.sln

@@ -70,7 +70,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "React.Sample.CoreMvc", "Rea
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "React.Router.Mvc4", "React.Router.Mvc4\React.Router.Mvc4.csproj", "{2170D912-86E9-4CE3-8DA4-E1DE8D958E63}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "React.Sample.Router.CoreMvc", "React.Sample.Router.CoreMvc\React.Sample.Router.CoreMvc.csproj", "{5BFA69C8-2E66-4112-AC30-CE31503F4175}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "React.Sample.Router.CoreMvc", "React.Sample.Router.CoreMvc\React.Sample.Router.CoreMvc.csproj", "{5BFA69C8-2E66-4112-AC30-CE31503F4175}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "React.Tests.Benchmarks", "..\tests\React.Tests.Benchmarks\React.Tests.Benchmarks.csproj", "{083462CB-2FC0-4508-A7ED-4B77B44C3E23}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -154,6 +156,10 @@ Global
 		{5BFA69C8-2E66-4112-AC30-CE31503F4175}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5BFA69C8-2E66-4112-AC30-CE31503F4175}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{5BFA69C8-2E66-4112-AC30-CE31503F4175}.Release|Any CPU.Build.0 = Release|Any CPU
+		{083462CB-2FC0-4508-A7ED-4B77B44C3E23}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{083462CB-2FC0-4508-A7ED-4B77B44C3E23}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{083462CB-2FC0-4508-A7ED-4B77B44C3E23}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{083462CB-2FC0-4508-A7ED-4B77B44C3E23}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -178,6 +184,7 @@ Global
 		{305918EF-AD05-4743-9B3A-DB1CE84D467E} = {A51CE5B6-294F-4D39-B32B-BF08DAF9B40B}
 		{2170D912-86E9-4CE3-8DA4-E1DE8D958E63} = {681C45FB-103C-48BC-B992-20C5B6B78F92}
 		{5BFA69C8-2E66-4112-AC30-CE31503F4175} = {A51CE5B6-294F-4D39-B32B-BF08DAF9B40B}
+		{083462CB-2FC0-4508-A7ED-4B77B44C3E23} = {F567B25C-E869-4C93-9C96-077761250F87}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {DCF4A41E-C60D-4086-98A9-6F8508D7E8D0}

tests/React.Tests.Benchmarks/Program.cs

@@ -0,0 +1,69 @@
+using System;
+using BenchmarkDotNet.Attributes;
+using BenchmarkDotNet.Running;
+using JavaScriptEngineSwitcher.ChakraCore;
+using JavaScriptEngineSwitcher.Core;
+using Newtonsoft.Json.Linq;
+using React.Web.Mvc;
+
+namespace React.Tests.Benchmarks
+{
+	public static class Program
+    {
+		public static void Main(string[] args)
+		{
+			var summary = BenchmarkRunner.Run<ComponentRenderBenchmarks>();
+		}
+
+		[MemoryDiagnoser]
+		public class ComponentRenderBenchmarks
+		{
+			public static void PopulateTestData()
+			{
+				for (int i = 0; i < 10000; i++)
+				{
+					_testData.Add("key" + i, "value" + i);
+				}
+			}
+
+			public ComponentRenderBenchmarks()
+			{
+				PopulateTestData();
+
+				Initializer.Initialize(registration => registration.AsSingleton());
+				AssemblyRegistration.Container.Register<ICache, NullCache>();
+				AssemblyRegistration.Container.Register<IFileSystem, SimpleFileSystem>();
+				JsEngineSwitcher.Instance.EngineFactories.Add(new ChakraCoreJsEngineFactory());
+				JsEngineSwitcher.Instance.DefaultEngineName = ChakraCoreJsEngine.EngineName;
+
+				ReactSiteConfiguration.Configuration
+					.SetReuseJavaScriptEngines(false)
+					.AddScript("Sample.jsx");
+			}
+
+			[Benchmark]
+			public void HtmlHelperExtensions_React()
+			{
+				AssertContains("Hello Tester!", HtmlHelperExtensions.React(null, "HelloWorld", _testData, serverOnly: true).ToHtmlString());
+			}
+
+			[Benchmark]
+			public void Environment_CreateComponent()
+			{
+				var component = ReactEnvironment.Current.CreateComponent("HelloWorld", _testData, serverOnly: true);
+				AssertContains("Hello Tester!", component.RenderHtml(renderServerOnly: true));
+				ReactEnvironment.Current.ReturnEngineToPool();
+			}
+
+			private static JObject _testData = JObject.FromObject(new System.Collections.Generic.Dictionary<string, string>(){ ["name"] = "Tester" });
+		}
+
+		private static void AssertContains(string expected, string actual)
+		{
+			if (!actual.Contains(expected))
+			{
+				throw new InvalidOperationException($"Strings were not equal. {expected} {actual}");
+			}
+		}
+    }
+}

tests/React.Tests.Benchmarks/React.Tests.Benchmarks.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+	  <TargetFramework>net461</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="benchmarkdotnet" Version="0.10.14" />
+    <PackageReference Include="JavaScriptEngineSwitcher.ChakraCore" Version="2.4.15" />
+    <PackageReference Include="JavaScriptEngineSwitcher.ChakraCore.Native.win-x64" Version="2.4.6" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\React.Core\React.Core.csproj" />
+    <ProjectReference Include="..\..\src\React.Web.Mvc4\React.Web.Mvc4.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Reference Include="System.Web" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="Sample.jsx">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

tests/React.Tests.Benchmarks/Sample.jsx

@@ -0,0 +1,10 @@
+class HelloWorld extends React.Component {
+	render() {
+		return (
+			<div>
+				Hello {this.props.name}!
+				All props: {JSON.stringify(this.props)}
+			</div>
+		);
+	}
+}