[3.12] 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 5f94a4018820c01f9ab93ab48871bc0fb46aa22e..b2ebfbee802f3c93c9c296f4e14b95270f2389c2 100644 (file)
--- a/Lib/test/test_subprocess.py
+++ b/Lib/test/test_subprocess.py
@@ -2006,9 +2006,9 @@ 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]
@@ -2033,11 +2033,10 @@ 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