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Editorial Team
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Asked: 2026-06-10T10:09:24+00:00

I have a set of mstest unit tests, which use Trace.Write to collect some

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I have a set of mstest unit tests, which use Trace.Write to collect some debugging information. And when I run it from VS2010 and then go to Test Run Details, there’s Debug Trace section where I can see all my messages.

But when I run the same test from command line on the build machine, the trace is not recorded.

The things that I’ve tried:

  • Make sure that I’m in Debug configuration
  • /details command line switch with debugtrace, traceinfo etc options
  • I know about saving the traces to the file on the disk through the listeners, but I would like to find a solution to write

Has someone had a similar problem?

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1 Answer

  1. Editorial Team

    Try using Console.WriteLine instead. I’ve had this problem before with MSTest, and using the WriteLine worked for me – in that there was output available in the test result view.

    No idea what other things like Debug.WriteLine or Trace.WriteLine didn’t work, I never bothered to found out to be honest. (Well, I stopped using MSTest and moved to NUnit)

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