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Editorial Team
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Asked: 2026-05-17T02:07:59+00:00

we have one main application, which executes up to 5 different exes. These exes

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we have one main application, which executes up to 5 different exes. These exes run independently and communicate with each other via UDP. Changing this architecture is not planned at the moment.

We want to migrate this whole thing from VS6 to VS2008.
I’m thinking about adding unit tests to make sure that after migration everything still works. Right now, there is not a single unit test.

So now I have a couple of questions:

  • Which unit test framework works fine with VS6 and VS2008? CppUnit seems to work with both compilers, at least I got it running.
  • How do I implement the unit tests in the above mentioned architecture? I see a problem that I have executables and no libraries, so it seems to be a bit difficult for me at that point
  • Is creating the unit tests for both platforms worth the effort or do you have a simpler suggestion?

Suggestions, best practices, new ideas welcome 🙂

Thanks

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1 Answer

  1. Editorial Team

    If they communicate via UDP and you want to make sure the integration between pieces works now and later, you could write automated tests against the UDP interfaces in MSTest or NUnit in VS2008.

    Write the tests in VS2008 and send input/verify output of the interfaces to the the .exe applications. Then, when you switch to .NET, just point your tests at the new endpoint for the .NET .exe and run them to verify all input and output are the same.

    I think you would get more bang for your time to write the unit tests exclusively for the new app, but write tests against the external UDP interfaces to verify the migration was successful.

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