https://github.com/python/cpython/commit/43d8b7f1ac419de06fdcd7b12455e28a17303770
commit: 43d8b7f1ac419de06fdcd7b12455e28a17303770
branch: 3.14
author: Miss Islington (bot) <[email protected]>
committer: picnixz <[email protected]>
date: 2025-11-22T10:38:52+01:00
summary:

[3.14] gh-141612: improve `test_trampoline_works_with_forks` coverage 
(GH-141613) (#141824)

gh-141612: improve `test_trampoline_works_with_forks` coverage (GH-141613)
(cherry picked from commit f15f6d0ba3715c67643e58959459b0e84a67b183)

Co-authored-by: Paresh Joshi <[email protected]>

files:
M Lib/test/test_perf_profiler.py

diff --git a/Lib/test/test_perf_profiler.py b/Lib/test/test_perf_profiler.py
index 9f2e5899334df4..1e1b0522787ff3 100644
--- a/Lib/test/test_perf_profiler.py
+++ b/Lib/test/test_perf_profiler.py
@@ -160,6 +160,16 @@ def baz():
         self.assertIn(f"py::bar_fork:{script}", child_perf_file_contents)
         self.assertIn(f"py::baz_fork:{script}", child_perf_file_contents)
 
+        # The parent's map should not contain the child's symbols.
+        self.assertNotIn(f"py::foo_fork:{script}", perf_file_contents)
+        self.assertNotIn(f"py::bar_fork:{script}", perf_file_contents)
+        self.assertNotIn(f"py::baz_fork:{script}", perf_file_contents)
+
+        # The child's map should not contain the parent's symbols.
+        self.assertNotIn(f"py::foo:{script}", child_perf_file_contents)
+        self.assertNotIn(f"py::bar:{script}", child_perf_file_contents)
+        self.assertNotIn(f"py::baz:{script}", child_perf_file_contents)
+
     @unittest.skipIf(support.check_bolt_optimized(), "fails on BOLT 
instrumented binaries")
     def test_sys_api(self):
         code = """if 1:

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