Only the PWA template should produce ServiceWorkerAssetsManifest

Author: SteveSandersonMS

src/ProjectTemplates/ComponentsWebAssembly.ProjectTemplates/ComponentsWebAssembly-CSharp.Client.csproj.in

@@ -3,7 +3,9 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.1</TargetFramework>
     <RazorLangVersion>3.0</RazorLangVersion>
+    <!--#if PWA -->
     <ServiceWorkerAssetsManifest>service-worker-assets.js</ServiceWorkerAssetsManifest>
+    <!--#endif -->
   </PropertyGroup>
 
   <ItemGroup>

src/ProjectTemplates/test/BlazorWasmTemplateTest.cs

@@ -46,6 +46,10 @@ public async Task BlazorWasmStandaloneTemplate_Works()
             var publishResult = await project.RunDotNetPublishAsync();
             Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
+            // The service worker assets manifest isn't generated for non-PWA projects
+            var publishDir = Path.Combine(project.TemplatePublishDir, "wwwroot");
+            Assert.False(File.Exists(Path.Combine(publishDir, "service-worker-assets.js")), "Non-PWA templates should not produce service-worker-assets.js");
+
             var buildResult = await project.RunDotNetBuildAsync();
             Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));