[3.11] gh-104522: Fix test_subprocess failure when build Python in the root home...

EPERM is raised when setreuid() fails.
EACCES is set in execve() when the test user has not access to sys.executable.
(cherry picked from commit 311d1e2701037952eaf75f993be76f3092c1f01c)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py
index b4206c7bea897de69696cf81a9012202f8b548d0..7f7d84214b0e860fedd5fbe7b353ba7f491d7e8a 100644 (file)
--- a/Lib/test/test_subprocess.py
+++ b/Lib/test/test_subprocess.py
@@ -2004,9 +2004,9 @@ class POSIXProcessTestCase(BaseTestCase):
 
     @unittest.skipUnless(hasattr(os, 'setreuid'), 'no setreuid on platform')
     def test_user(self):
-        # For code coverage of the user parameter.  We don't care if we get an
-        # EPERM error from it depending on the test execution environment, that
-        # still indicates that it was called.
+        # For code coverage of the user parameter.  We don't care if we get a
+        # permission error from it depending on the test execution environment,
+        # that still indicates that it was called.
 
         uid = os.geteuid()
         test_users = [65534 if uid != 65534 else 65533, uid]
@@ -2031,11 +2031,10 @@ class POSIXProcessTestCase(BaseTestCase):
                                 user=user,
                                 close_fds=close_fds)
                     except PermissionError as e:  # (EACCES, EPERM)
-                        self.assertIsNone(e.filename)
-                    except OSError as e:
-                        if e.errno not in (errno.EACCES, errno.EPERM):
-                            raise
-                        self.assertIsNone(e.filename)
+                        if e.errno == errno.EACCES:
+                            self.assertEqual(e.filename, sys.executable)
+                        else:
+                            self.assertIsNone(e.filename)
                     else:
                         if isinstance(user, str):
                             user_uid = pwd.getpwnam(user).pw_uid