gh-112536: Add TSAN builds on Github Actions (#116872)

1 files changed, 8 insertions, 0 deletions

diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
index 3b5c37c..9769cb4 100644
--- a/Lib/test/test_threading.py
+++ b/Lib/test/test_threading.py
@@ -50,6 +50,11 @@ def skip_unless_reliable_fork(test):
     return test
 
 
+skip_if_tsan_fork = unittest.skipIf(
+    support.check_sanitizer(thread=True),
+    "TSAN doesn't support threads after fork")
+
+
 def requires_subinterpreters(meth):
     """Decorator to skip a test if subinterpreters are not supported."""
     return unittest.skipIf(interpreters is None,
@@ -634,6 +639,7 @@ class ThreadTests(BaseTestCase):
         self.assertTrue(t.daemon)
 
     @skip_unless_reliable_fork
+    @skip_if_tsan_fork
     def test_dummy_thread_after_fork(self):
         # Issue #14308: a dummy thread in the active list doesn't mess up
         # the after-fork mechanism.
@@ -703,6 +709,7 @@ class ThreadTests(BaseTestCase):
 
     @skip_unless_reliable_fork
     @unittest.skipUnless(hasattr(os, 'waitpid'), "test needs os.waitpid()")
+    @skip_if_tsan_fork
     def test_main_thread_after_fork(self):
         code = """if 1:
             import os, threading
@@ -1271,6 +1278,7 @@ class ThreadJoinOnShutdown(BaseTestCase):
         self._run_and_join(script)
 
     @skip_unless_reliable_fork
+    @skip_if_tsan_fork
     def test_3_join_in_forked_from_thread(self):
         # Like the test above, but fork() was called from a worker thread
         # In the forked process, the main Thread object must be marked as stopped.