run_unitests: Skip the native_file_is_pipe test on cygwin
Since it hangs and causes azure to time out.
@@ -5819,7 +5819,8 @@ class NativeFileTests(BasePlatformTests):
'--native-file', config, '--native-file', config2,
'-Dcase=find_program'])
- @unittest.skipIf(os.name != 'posix', 'Uses fifos, which are not available on non Unix OSes.')
+ # This test hangs on cygwin.
+ @unittest.skipIf(os.name != 'posix' or is_cygwin(), 'Uses fifos, which are not available on non Unix OSes.')
def test_native_file_is_pipe(self):
fifo = os.path.join(self.builddir, 'native.file')
os.mkfifo(fifo)
