From 4515c614bfa3bb51f535f71ee44b951af52db5c4 Mon Sep 17 00:00:00 2001
From: ShaharNaveh <50263213+ShaharNaveh@users.noreply.github.com>
Date: Wed, 16 Jul 2025 13:12:30 +0300
Subject: [PATCH] mark more tests

---
 Lib/test/support/__init__.py | 24 ++++++++++++++++++++----
 Lib/test/test_traceback.py   |  2 ++
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index ec889ecc4..26a8b1672 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -840,11 +840,27 @@ def python_is_optimized():
     return final_opt not in ('', '-O0', '-Og')
 
 
-_header = 'nP'
+# From CPython 3.13.5
+Py_GIL_DISABLED = bool(sysconfig.get_config_var('Py_GIL_DISABLED'))
+
+# From CPython 3.13.5
+def requires_gil_enabled(msg="needs the GIL enabled"):
+    """Decorator for skipping tests on the free-threaded build."""
+    return unittest.skipIf(Py_GIL_DISABLED, msg)
+
+# From CPython 3.13.5
+def expected_failure_if_gil_disabled():
+    """Expect test failure if the GIL is disabled."""
+    if Py_GIL_DISABLED:
+        return unittest.expectedFailure
+    return lambda test_case: test_case
+
+# From CPython 3.13.5
+if Py_GIL_DISABLED:
+    _header = 'PHBBInP'
+else:
+    _header = 'nP'
 _align = '0n'
-if hasattr(sys, "getobjects"):
-    _header = '2P' + _header
-    _align = '0P'
 _vheader = _header + 'n'
 
 def calcobjsize(fmt):
diff --git a/Lib/test/test_traceback.py b/Lib/test/test_traceback.py
index 253dacb3c..9d95903d5 100644
--- a/Lib/test/test_traceback.py
+++ b/Lib/test/test_traceback.py
@@ -430,6 +430,8 @@ class TracebackCases(unittest.TestCase):
                     self.assertEqual(len(err), 1)
                 self.assertEqual(err[-1], 'SyntaxError: error\n')
 
+    # TODO: RUSTPYTHON; IndexError: index out of range
+    @unittest.expectedFailure
     @requires_subprocess()
     @force_not_colorized
     def test_encoded_file(self):