TestRunDirectory contains an ugly path in linux containers.

[DevAlsicJanDeclercq]

Describe the bug

When running unit test in an linux container, I have issues with the path in TestRunDirectory. it contains a .\ in the path. This makes some (not all) unit tests fail.

Steps To Reproduce

Run a unit test in a container. Check the TestRunDirectory variable.

Expected behavior

TestRunDirectory should be a valid unix path.

Actual behavior

I get a path like this /__w/90/Contoso.MyUnitTest/build/.\TestResults/Deploy_ 20251016T082547_935/

The .\ makes that some tests fail..

Additional context

My workaround:

[TestClass]
public class MyTest {

    private static string? _testRunDirectory;

    public TestContext TestContext { get; set; }

    [ClassInitialize]
    public static void InitTest(TestContext testCtx)
        => _testRunDirectory = testCtx.TestRunDirectory.Replace(".\\", "")
 
    ...
}

[Youssef1313]

Hi @DevAlsicJanDeclercq

Do you know if this is a regression or a behavior that has been forever? Which version of MSTest are you currently using? We will investigate this soon.

[DevAlsicJanDeclercq]

After furter investigation, it seems that a 3th party analysis tool added a test.runsettings with this specific path defined, so it can later report about the test-output.

I'm in doubt if the .\ should be processed on linux the same way as it was on windows.

<?xml version="1.0" encoding="utf-8"?>
<RunSettings>
	<RunConfiguration>
		<ResultsDirectory>.\TestResults</ResultsDirectory>
	</RunConfiguration>
</RunSettings>

I'm taking this to the 3th party-tool suplier