From: Paresh Joshi <rahulj9223@gmail.com>
Date: Fri, 21 Nov 2025 16:01:26 +0000 (+0530)
Subject: gh-141612: improve `test_trampoline_works_with_forks` coverage (#141613)
X-Git-Tag: v3.15.0a3~327
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f15f6d0ba3715c67643e58959459b0e84a67b183;p=thirdparty%2FPython%2Fcpython.git

gh-141612: improve `test_trampoline_works_with_forks` coverage (#141613)
---

diff --git a/Lib/test/test_perf_profiler.py b/Lib/test/test_perf_profiler.py
index e6852c93e698..663486190739 100644
--- a/Lib/test/test_perf_profiler.py
+++ b/Lib/test/test_perf_profiler.py
@@ -160,6 +160,16 @@ class TestPerfTrampoline(unittest.TestCase):
         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):
         for define_eval_hook in (False, True):