Can't build BasicTestApp and run Blazor E2E test

[Regenhardt]

I'm tying to add an E2E test, but I have difficulties getting everything to build. One of the culprits is BasicTestApp and I suspect that there is a general problem with my setup, something I didn't do that I should have done.

The actual change is in JSInterop, which builds fine. JSInterop.Tests is green too. What am I doing wrong?

Visual Studio: VS Community 17.14.0 Preview 1.1
.NET SDK: 10.0.100-preview.2.25109.3
VS started via startvs.cmd file.

Warning:

'..\..\..\Web.JS\dist\Debug\blazor.webview.js' does not exist and won't be included in the build.

VS build error:

System.InvalidOperationException: No file exists for the asset at either location 'C:\Repo\aspnetcore\src\Components\Web.JS\dist\Debug\blazor.webassembly.js' or 'C:\Repo\aspnetcore\src\Components\Web.JS\dist\Debug\blazor.webassembly.js'.
   at Microsoft.AspNetCore.StaticWebAssets.Tasks.StaticWebAsset.ResolveFile(String identity, String originalItemSpec)
   at Microsoft.AspNetCore.StaticWebAssets.Tasks.DefineStaticWebAssets.Execute()

Terminal build output:

BasicTestApp failed with 1 error(s) (6.5s)
    C:\Repo\aspnetcore\.dotnet\sdk\10.0.100-preview.2.25109.3\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(109,5): error :
      System.InvalidOperationException: No file exists for the asset at either location 'C:\Repo\aspnetcore\src\Components\Web.JS\dist\Debug\blazor.webassembly.js' or 'C:\Repo\aspnetcore\src\Components\Web.JS\dist\Debug\blazor.webassembly.js'.
         at Microsoft.AspNetCore.StaticWebAssets.Tasks.StaticWebAsset.ResolveFile(String identity, String originalItemSpec)
         at Microsoft.AspNetCore.StaticWebAssets.Tasks.DefineStaticWebAssets.Execute()

[javiercn]

@Regenhardt thanks for contacting us.

You need nodejs and you need to build the JS bits

[Regenhardt]

Building with npm worked, thanks!

Now it needs java to build Microsoft.AspNetCore.Components.E2ETests, even though I have the Microsoft OpenJDK installed for VS via tools and features' individual components. Should I find that jdk and add it to PATH or create JAVA_HOME?

[javiercn]

@Regenhardt you can put it in your path and JAVA_HOME. I don't remember if the build automatically installs it and sets it up.

Have your run activate.ps1 or activate.cmd? You could check if its setup in the path and environment after you do that. There's also a startvs.cmd script or something like that that you can use to start vs from the cli that will set everything up.

[Regenhardt]

I have JAVA_HOME set and /bin in my path, now the test project starts up. Unfortunately I get a weird ArgumentException fom the server fixture saying that input can't be null. I saw in the optional dependencies that I need Seleniumto run the test project - what do I have to install there?

The page has libraries, browser extension, and grid server.
Library comes as NuGet package so I figued that's gotta be in the project.
Browser extension doesn't make sense to run a test from my IDE.
Grid server? Seems overkill.

Edit: activate just puts the local dotnet into the current shell's environment. startvs is what I use to start visual studio, it puts the local dotnet into VS' environment. Can't find anything about java being added, but I did find the setup readme telling me to add jdk/bin and JAVA_HOME myself.

[javiercn]

@Regenhardt thanks for the additional details.

Have you run eng\build.cmd from the command line?