From c020c6bbf7bb3879b671607d4a7a0f6f8a1bb9e7 Mon Sep 17 00:00:00 2001
From: Andrey Maltsev <maltsev.a2012@gmail.com>
Date: Sun, 2 Apr 2023 13:55:46 +0000
Subject: [PATCH] Update test_dynamic.py from Cpython v3.11.2

---
 Lib/test/test_dynamic.py | 58 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/Lib/test/test_dynamic.py b/Lib/test/test_dynamic.py
index 3ae090fd66..2155b40289 100644
--- a/Lib/test/test_dynamic.py
+++ b/Lib/test/test_dynamic.py
@@ -1,6 +1,7 @@
 # Test the most dynamic corner cases of Python's runtime semantics.
 
 import builtins
+import sys
 import unittest
 
 from test.support import swap_item, swap_attr
@@ -133,6 +134,63 @@ def test_eval_gives_lambda_custom_globals(self):
 
         self.assertEqual(foo(), 7)
 
+    # TODO: RUSTPYTHON
+    @unittest.expectedFailure
+    def test_load_global_specialization_failure_keeps_oparg(self):
+        # https://github.com/python/cpython/issues/91625
+        class MyGlobals(dict):
+            def __missing__(self, key):
+                return int(key.removeprefix("_number_"))
+
+        code = "lambda: " + "+".join(f"_number_{i}" for i in range(1000))
+        sum_1000 = eval(code, MyGlobals())
+        expected = sum(range(1000))
+        # Warm up the the function for quickening (PEP 659)
+        for _ in range(30):
+            self.assertEqual(sum_1000(), expected)
+
+
+class TestTracing(unittest.TestCase):
+
+    def setUp(self):
+        self.addCleanup(sys.settrace, sys.gettrace())
+        sys.settrace(None)
+
+    def test_after_specialization(self):
+
+        def trace(frame, event, arg):
+            return trace
+
+        turn_on_trace = False
+
+        class C:
+            def __init__(self, x):
+                self.x = x
+            def __del__(self):
+                if turn_on_trace:
+                    sys.settrace(trace)
+
+        def f():
+            # LOAD_GLOBAL[_BUILTIN] immediately follows the call to C.__del__
+            C(0).x, len
+
+        def g():
+            # BINARY_SUSCR[_LIST_INT] immediately follows the call to C.__del__
+            [0][C(0).x]
+
+        def h():
+            # BINARY_OP[_ADD_INT] immediately follows the call to C.__del__
+            0 + C(0).x
+
+        for func in (f, g, h):
+            with self.subTest(func.__name__):
+                for _ in range(58):
+                    func()
+                turn_on_trace = True
+                func()
+                sys.settrace(None)
+                turn_on_trace = False
+
 
 if __name__ == "__main__":
     unittest.main()