Unable to display tests in Test Explorer 0.7.4 and VSCode 1.51

Hi, since VS Code 1.51 I am unable to get Test Explorer displaying tests. I am pretty sure it worked in VS Code 1.50.1.

dotnet --list-sdks

3.1.202 [C:\Program Files\dotnet\sdk]
3.1.301 [C:\Program Files\dotnet\sdk]
3.1.401 [C:\Program Files\dotnet\sdk]
5.0.100 [C:\Program Files\dotnet\sdk]

dotnet --info

.NET SDK (reflecting any global.json):
 Version:   5.0.100
 Commit:    5044b93829

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.18363
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\5.0.100\

Host (useful for support):
  Version: 5.0.0
  Commit:  cf258a14b7

.NET SDKs installed:
  3.1.202 [C:\Program Files\dotnet\sdk]
  3.1.301 [C:\Program Files\dotnet\sdk]
  3.1.401 [C:\Program Files\dotnet\sdk]
  5.0.100 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.All 2.1.23 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.App 2.1.23 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 2.1.23 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 3.1.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

To install additional .NET runtimes or SDKs:
  https://aka.ms/dotnet-download

Technically dotnet test -t -v=q *.csproj itself lists all relevant tests by running manually using suggested command in the output log of Test Explorer.

However I’ve seen machine running .NET Core 3.1.9 and it has the same problem. It looks like there’s breaking change between versions of VSCode 1.50.1 and 1.51.

Current workaround: downgrade to VSCode 1.50.1.

Thanks for investigating.

[danarcher]

I had the same issue, Test Explorer 0.7.4 and VSCode 1.51, in my case with .NET 5. It looks to me like the regex in extractAssemblyPaths() is out of date.

The regex is:

/^Test run for (.+\.dll)\(.+\)/gm

But my .NET 5 output from dotnet test -t -v=q has an additional space:

Test run for C:\...\Project\tests\Project.Tests\bin\Debug\net5.0\Project.Tests.dll (.NETCoreApp,Version=v5.0)
                                                                                  ^ Space

The quick fix for me on Windows was to open %USERPROFILE%\.vscode\extensions\formulahendry.dotnet-test-explorer-0.7.4\out\src\testDiscovery.js and edit the following:

function extractAssemblyPaths(testCommandStdout) {
    const testRunLineRegex = /^Test run for (.+\.dll)\(.+\)/gm;

to:

function extractAssemblyPaths(testCommandStdout) {
    const testRunLineRegex = /^Test run for (.+\.dll)\s*\(.+\)/gm;
                                                     ^^^

to cope with the extra whitespace.

[stefanforsberg]

Thanks for reporting this. We’ll try and find a regexp that works for both core and .net 5.