Issue #17248: Fix os.*chown() testing when user is in root group.

diff --git a/Lib/test/test_posix.py b/Lib/test/test_posix.py
index 073e069ee8d1e4a9613c34d8705b68d760da1fa5..b0a8cdf564d5d124839953c3ec61f7a7a4488ac8 100644 (file)
--- a/Lib/test/test_posix.py
+++ b/Lib/test/test_posix.py
@@ -271,7 +271,7 @@ class PosixTester(unittest.TestCase):
             check_stat(uid, gid)
             self.assertRaises(OSError, chown_func, first_param, 0, -1)
             check_stat(uid, gid)
-            if gid != 0:
+            if 0 not in os.getgroups():
                 self.assertRaises(OSError, chown_func, first_param, -1, 0)
                 check_stat(uid, gid)
         # test illegal types