No matched test files! for project compiled with msbuild (.NET 4)

[ikondrasovas]

In my workflow file I have defined the following step for test execution, but I get back an "No matched test files" error back:

- name: vstest-action
  uses: microsoft/vstest-action@v1.0.0
  with:
    # Run tests from the specified files
    # testAssembly: # default is **\\*test*.dll\n!**\\*TestAdapter.dll\n!**\\obj\\**
    # Folder to search for the test assemblies
      searchFolder: "D:\\a\\<myapplication>\\source\\clientapp\\<mytestproject>\\bin\\Release\\"

all other parameters contain default values.

I have verified the test .dll file is compiled and available by looking at the logs.
To make sure, I have also fully specified the absolute path where the test .dll is located.

I am wondering if the reason is that the test assembly is .NET 4.0 and it was built using microsoft/setup-msbuild@v1.1 action.

Any ideas on what is the problem or how can I further isolate it?

Thanks!

[czf]

I ran into a similar, if not the same, issue and ended up being explicit with the testAssembly parameter. I think the default might be throwing things off. If you haven't found a resolution maybe give this a shot.

- name: Run tests
  uses: microsoft/vstest-action@v1.0.0
  with:
    searchFolder: '.' 
    testAssembly: |
        /**/*test*.dll
        !./**/*TestAdapter.dll
        !./**/obj/**

[GillesTourreau]

I confirm the solution of @czf , you have to explicitly define the testAssembly parameter even you want to use the default value of the action.