[3.11] gh-116858: Add `@cpython_only` to several tests in `test_cmd_line` (GH-116859...

diff --git a/Lib/test/test_cmd_line.py b/Lib/test/test_cmd_line.py
index 1c33be285837cb0b718f4b858f27fad333b9616d..12d0c67bee72dc66afc5bb23e579f95c53d6a0ae 100644 (file)
--- a/Lib/test/test_cmd_line.py
+++ b/Lib/test/test_cmd_line.py
@@ -41,6 +41,7 @@ class CmdLineTest(unittest.TestCase):
         self.assertNotIn(b'Traceback', err)
         return out
 
+    @support.cpython_only
     def test_help(self):
         self.verify_valid_flag('-h')
         self.verify_valid_flag('-?')
@@ -51,14 +52,17 @@ class CmdLineTest(unittest.TestCase):
         self.assertNotIn(b'-X dev', out)
         self.assertLess(len(lines), 50)
 
+    @support.cpython_only
     def test_help_env(self):
         out = self.verify_valid_flag('--help-env')
         self.assertIn(b'PYTHONHOME', out)
 
+    @support.cpython_only
     def test_help_xoptions(self):
         out = self.verify_valid_flag('--help-xoptions')
         self.assertIn(b'-X dev', out)
 
+    @support.cpython_only
     def test_help_all(self):
         out = self.verify_valid_flag('--help-all')
         lines = out.splitlines()
@@ -77,6 +81,7 @@ class CmdLineTest(unittest.TestCase):
     def test_site_flag(self):
         self.verify_valid_flag('-S')
 
+    @support.cpython_only
     def test_version(self):
         version = ('Python %d.%d' % sys.version_info[:2]).encode("ascii")
         for switch in '-V', '--version', '-VV':
@@ -142,6 +147,7 @@ class CmdLineTest(unittest.TestCase):
         else:
             self.assertEqual(err, b'')
 
+    @support.cpython_only
     def test_xoption_frozen_modules(self):
         tests = {
             ('=on', 'FrozenImporter'),
@@ -570,6 +576,7 @@ class CmdLineTest(unittest.TestCase):
             print("del sys.modules['__main__']", file=script)
         assert_python_ok(filename)
 
+    @support.cpython_only
     def test_unknown_options(self):
         rc, out, err = assert_python_failure('-E', '-z')
         self.assertIn(b'Unknown option: -z', err)
@@ -684,6 +691,7 @@ class CmdLineTest(unittest.TestCase):
             self.assertEqual(proc.returncode, 0, proc)
         return proc.stdout.rstrip()
 
+    @support.cpython_only
     def test_xdev(self):
         # sys.flags.dev_mode
         code = "import sys; print(sys.flags.dev_mode)"
@@ -858,6 +866,7 @@ class CmdLineTest(unittest.TestCase):
         self.assertEqual(proc.returncode, 0, proc)
         self.assertEqual(proc.stdout.strip(), b'0')
 
+    @support.cpython_only
     def test_parsing_error(self):
         args = [sys.executable, '-I', '--unknown-option']
         proc = subprocess.run(args,