Add Integration Test for WASM (#2532)

* Write failing wasm test

* Use local dotnet installation to install workload

* Add v8 to path

* Add wasm-tools workload installation to build project, thanks @ilonatommy

---------

Co-authored-by: Adam Sitnik <adam.sitnik@gmail.com>
Co-authored-by: Tim Cassell <35501420+timcassell@users.noreply.github.com>

.github/workflows/run-tests.yaml

@@ -62,6 +62,14 @@ jobs:
           platform: x64
       - name: Set up zlib-static
         run: sudo apt-get install -y libkrb5-dev
+      - name: Set up node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+      - name: Set up v8
+        run: npm install jsvu -g && jsvu --os=linux64 --engines=v8 && echo "$HOME/.jsvu/bin" >> $GITHUB_PATH
+      - name: Install wasm-tools workload
+        run: ./build.cmd install-wasm-tools
       - name: Run task 'build'
         run: ./build.cmd build
       - name: Run task 'unit-tests'
@@ -79,6 +87,14 @@ jobs:
     runs-on: macos-13
     steps:
       - uses: actions/checkout@v3
+      - name: Set up node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+      - name: Set up v8
+        run: npm install jsvu -g && jsvu --os=mac64 --engines=v8 && echo "$HOME/.jsvu/bin" >> $GITHUB_PATH
+      - name: Install wasm-tools workload
+        run: ./build.cmd install-wasm-tools
       - name: Run task 'build'
         run: ./build.cmd build
       - name: Run task 'unit-tests'

build/BenchmarkDotNet.Build/Program.cs

@@ -56,6 +56,26 @@ public HelpInfo GetHelp()
     }
 }
 
+[TaskName(Name)]
+[TaskDescription("Install wasm-tools workload")]
+public class InstallWasmToolsWorkload : FrostingTask<BuildContext>, IHelpProvider
+{
+    private const string Name = "install-wasm-tools";
+
+    public override void Run(BuildContext context) => context.BuildRunner.InstallWorkload("wasm-tools");
+
+    public HelpInfo GetHelp()
+    {
+        return new HelpInfo
+        {
+            Examples = new[]
+            {
+                new Example(Name)
+            }
+        };
+    }
+}
+
 [TaskName(Name)]
 [TaskDescription("Run unit tests (fast)")]
 [IsDependentOn(typeof(BuildTask))]

build/BenchmarkDotNet.Build/Runners/BuildRunner.cs

@@ -5,6 +5,7 @@
 using Cake.Common.Tools.DotNet.Build;
 using Cake.Common.Tools.DotNet.Pack;
 using Cake.Common.Tools.DotNet.Restore;
+using Cake.Common.Tools.DotNet.Workload.Install;
 using Cake.Core;
 using Cake.Core.IO;
 
@@ -28,6 +29,16 @@ public void Restore()
             });
     }
 
+    public void InstallWorkload(string workloadId)
+    {
+        context.DotNetWorkloadInstall(workloadId,
+            new DotNetWorkloadInstallSettings
+            {
+                IncludePreviews = true,
+                NoCache = true
+            });
+    }
+
     public void Build()
     {
         context.Information("BuildSystemProvider: " + context.BuildSystem().Provider);

tests/BenchmarkDotNet.IntegrationTests/AppBundle/test-main.js

@@ -0,0 +1,9 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+import { dotnet } from './_framework/dotnet.js'
+
+await dotnet
+    .withDiagnosticTracing(false)
+    .withApplicationArguments(...arguments)
+    .run()

tests/BenchmarkDotNet.IntegrationTests/BenchmarkDotNet.IntegrationTests.csproj

@@ -56,6 +56,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="App.config" />
+    <None Include="AppBundle\**" CopyToOutputDirectory="Always" />
   </ItemGroup>
   <ItemGroup>
     <Service Include="{508349b6-6b84-4df5-91f0-309beebad82d}" />

tests/BenchmarkDotNet.IntegrationTests/WasmTests.cs

@@ -0,0 +1,51 @@
+using System;
+using System.IO;
+using BenchmarkDotNet.Attributes;
+using BenchmarkDotNet.Configs;
+using BenchmarkDotNet.Environments;
+using BenchmarkDotNet.Jobs;
+using BenchmarkDotNet.Portability;
+using BenchmarkDotNet.Tests.Loggers;
+using BenchmarkDotNet.Tests.XUnit;
+using BenchmarkDotNet.Toolchains.DotNetCli;
+using BenchmarkDotNet.Toolchains.MonoWasm;
+using Xunit.Abstractions;
+
+namespace BenchmarkDotNet.IntegrationTests
+{
+    public class WasmTests : BenchmarkTestExecutor
+    {
+        public WasmTests(ITestOutputHelper output) : base(output) { }
+
+        [FactEnvSpecific("WASM is only supported on Unix", EnvRequirement.NonWindows)]
+        public void WasmIsSupported()
+        {
+            var dotnetVersion = "net8.0";
+            var logger = new OutputLogger(Output);
+            var netCoreAppSettings = new NetCoreAppSettings(dotnetVersion, null, "Wasm");
+            var mainJsPath = Path.Combine(AppContext.BaseDirectory, "AppBundle", "test-main.js");
+
+            var config = ManualConfig.CreateEmpty()
+                .AddLogger(logger)
+                .AddJob(Job.Dry
+                    .WithArguments([new MsBuildArgument($"/p:WasmMainJSPath={mainJsPath}")])
+                    .WithRuntime(new WasmRuntime(dotnetVersion, moniker: RuntimeMoniker.WasmNet80, javaScriptEngineArguments: "--expose_wasm --module"))
+                    .WithToolchain(WasmToolchain.From(netCoreAppSettings)))
+                .WithOption(ConfigOptions.GenerateMSBuildBinLog, true);
+
+            CanExecute<WasmBenchmark>(config);
+        }
+
+        public class WasmBenchmark
+        {
+            [Benchmark]
+            public void Check()
+            {
+                if (!RuntimeInformation.IsWasm)
+                {
+                    throw new Exception("Incorrect runtime detection");
+                }
+            }
+        }
+    }
+}