Question: Has the default TRX output directory changed in recent versions?

[chvollm]

Title

Question: Has the default TRX output directory changed in recent versions?

Description

Hi,

After upgrading our test project, we noticed that the default output location of the generated TRX report has changed. I could not find this documented in the release notes, so I'm wondering whether this is an intentional change.

Package versions

Previous:

• TUnit 1.56.35
• Microsoft.NET.Test.Sdk 18.7.0

Current:

• TUnit 1.61.0
• Microsoft.NET.Test.Sdk 18.8.1

Both packages were upgraded in the same commit, so I have not isolated which package introduced the change.

Command

We execute the tests as follows:

dotnet test <project> --configuration Release --no-build -- \
  --report-trx \
  --report-trx-filename test_results.trx

No --results-directory is specified.

Previous behavior

The TRX report was written underneath the test project's output directory, for example:

SomeProject.Test/bin/Release/net10.0/TestResults/test_results.trx

Current behavior

The TRX report is now written to:

<repository-root>/TestResults/test_results.trx

In our GitHub Actions run, for example:

/home/runner/work/someproject/someproject/TestResults/test_results.trx

instead of

/home/runner/work/someproject/someproject/SolutionRoot/SomeProject.Test/bin/Release/net10.0/TestResults/test_results.trx

The tests complete successfully; only the default output location has changed.

Environment

• .NET 10
• Windows (local)
• GitHub Actions (ubuntu-latest)

The behavior is now the same on both Windows and Linux.

Question

Is this an intentional change in the default behavior?

If so, could the documentation or release notes mention it? Existing CI pipelines that search for the TRX file under the test project's output directory may stop working after upgrading.

Thanks!

[thomhurst]

TUnit doesn't actually control the TRX - So I wasn't aware it had moved.
The trx is provided by Microsofts trx extension. That has been updated recently so it's entirely likely though!

[chvollm]

OK, thanks. I was still trying to figure out which library is responsible, so it's not TUnit. I'll do some more investigation.

[chvollm]

@thomhurst Sorry to come back, but I invested some more time. It seems to be an issue from 1.58 to 1.59. I recreated the issue with a simple test. Just a test project with a simple test and then just run dotnet test -- --report-trx --report-trx-filename test_results.trx. With 1.58 the results file gets created in the bin folder, with 1.59 it gets created in a TestResults folder. Do you want me to provide more details?

[thomhurst]

It'll still be Microsoft. It's because TUnit updates it's microsoft.testing.platform dependency in 1.59

See the last row: https://github.com/thomhurst/TUnit/releases/tag/v1.59.0

[chvollm]

OK, I missed that one. I will dig even deeper. Thanks again!

[chvollm]

So, here is the answer: microsoft/testfx#10116