Unit tests Process.Start() error: access is denied, file doesn't exist, credentials invalid.

[avengerx]

This seems to be reproduced by a very specific set up, so I'm not logging as an issue. Should be useful should anybody else faces this in the future.

The following exception could be thrown while trying to un any test case using Visual Studio 2022's test explorer:

    System.ComponentModel.Win32Exception : Failed to start a process with file path 'A:\devel\ilspy\src\ILSpy-tests\Random Tests\TestCases\ExplicitConversions.exe'. Target file doesn't exist or the provided credentials are invalid.
  ----> System.ComponentModel.Win32Exception : An error occurred trying to start process 'A:\devel\ilspy\src\ILSpy-tests\Random Tests\TestCases\ExplicitConversions.exe' with working directory 'A:\devel\ilspy\src\ICSharpCode.Decompiler.Tests\bin\Debug\net6.0-windows\win-x64'. Access is denied.

The ILSpy-tests directory is a submodule that should be checked out prior to running at least a given range of tests.

Under windows, if the repositories are checked out using cygwin's git client, permissions may get specified in a way, such that running dotnet test... from Cygwin command line would work fine. Yet running the unit tests from Visual Studio would result in the exception above.

To correct permissions, what worked for me was just change to ILSpy-tests directory (git submodule), and run icacls . /reset /t so that permissions are reset to defaults inherited from upper level directories (as if resetting permissions to "inherit from parent directory").