https://github.com/python/cpython/commit/32e1e0699ffda8ec1dd5a0eb178b052352ab7d31
commit: 32e1e0699ffda8ec1dd5a0eb178b052352ab7d31
branch: main
author: Alper <[email protected]>
committer: kumaraditya303 <[email protected]>
date: 2025-09-11T19:08:08+05:30
summary:
gh-116738: add multi-threaded tests for `resource` module on free-threading
builds (#138504)
files:
A Lib/test/test_free_threading/test_resource.py
diff --git a/Lib/test/test_free_threading/test_resource.py
b/Lib/test/test_free_threading/test_resource.py
new file mode 100644
index 00000000000000..ecd0e535c442b4
--- /dev/null
+++ b/Lib/test/test_free_threading/test_resource.py
@@ -0,0 +1,41 @@
+import unittest
+from test.support import import_helper, threading_helper
+
+resource = import_helper.import_module("resource")
+
+
+NTHREADS = 10
+LOOP_PER_THREAD = 1000
+
+
+@threading_helper.requires_working_threading()
+class ResourceTest(unittest.TestCase):
+ @unittest.skipUnless(hasattr(resource, "getrusage"), "needs getrusage")
+ @unittest.skipUnless(
+ hasattr(resource, "RUSAGE_THREAD"), "needs RUSAGE_THREAD"
+ )
+ def test_getrusage(self):
+ ru_utime_lst = []
+
+ def dummy_work(ru_utime_lst):
+ for _ in range(LOOP_PER_THREAD):
+ pass
+
+ usage_process = resource.getrusage(resource.RUSAGE_SELF)
+ usage_thread = resource.getrusage(resource.RUSAGE_THREAD)
+ # Process user time should be greater than thread user time
+ self.assertGreater(usage_process.ru_utime, usage_thread.ru_utime)
+ ru_utime_lst.append(usage_thread.ru_utime)
+
+ threading_helper.run_concurrently(
+ worker_func=dummy_work, args=(ru_utime_lst,), nthreads=NTHREADS
+ )
+
+ usage_process = resource.getrusage(resource.RUSAGE_SELF)
+ self.assertEqual(len(ru_utime_lst), NTHREADS)
+ # Process user time should be greater than sum of all thread user times
+ self.assertGreater(usage_process.ru_utime, sum(ru_utime_lst))
+
+
+if __name__ == "__main__":
+ unittest.main()
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