test_unicode_file.py skip tests until posix NFI based support is in

Author: cosminbasca

graalpython/lib-python/3/test/test_unicode_file.py

@@ -5,7 +5,7 @@
 import unicodedata
 
 import unittest
-from test.support import (run_unittest, rmtree, change_cwd,
+from test.support import (run_unittest, rmtree, change_cwd, impl_detail,
     TESTFN_ENCODING, TESTFN_UNICODE, TESTFN_UNENCODABLE, create_empty_file)
 
 if not os.path.supports_unicode_filenames:
@@ -117,11 +117,13 @@ def _test_single(self, filename):
 
     # The 'test' functions are unittest entry points, and simply call our
     # _test functions with each of the filename combinations we wish to test
+    @impl_detail("[GR-27024] [GR-23324] posix NFI support", graalvm=False)
     def test_single_files(self):
         self._test_single(TESTFN_UNICODE)
         if TESTFN_UNENCODABLE is not None:
             self._test_single(TESTFN_UNENCODABLE)
 
+    @impl_detail("[GR-27024] [GR-23324] posix NFI support", graalvm=False)
     def test_directories(self):
         # For all 'equivalent' combinations:
         #  Make dir with encoded, chdir with unicode, checkdir with encoded