I would like to add tests of invoking non-Cygwin processes using posix_spawn and making sure their stdin/out/err and cwd are as expected. I see that there is a mingw directory for building with the cross-mingw compiler, and I could make a test child process built through that which uses GetFileInformationByHandleEx and GetCurrentDirectoryW.
Can I be assured that when the winsup.api tests run that the mingw tests have already been built, or do I need some sort of dependency declared in the Makefile.am? How should the winsup.api test find the mingw test exe? Should I figure out what the cwd of the test run from the testsuite is and just use a relative path? dladdr an address in the exe and use the returned path to the exe to construct a path to the mingw exe?
