Add multiprocessing native_id test

python · miss-islington · Nov 19, 2019 · Oct 31, 2019 · Nov 8, 2019 · Nov 8, 2019
commit c98cca0890c9bdee856a51a0f82df0e59072d069
diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
@@ -361,6 +361,24 @@ def test_process(self):
        self.assertNotIn(p, self.active_children())
        close_queue(q)

+    if threading._HAVE_THREAD_NATIVE_ID:
+        def test_process_thread_attributes(self):
+            current_mainthread_native_id = threading.main_thread().native_id
+
+            q = self.Queue(1)
+            p = self.Process(target=self._test_process_thread_attributes, args=(q,))
+            p.daemon = True
+            p.start()
+
+            child_mainthread_native_id = q.get()
+            self.assertNotEqual(current_mainthread_native_id, child_mainthread_native_id)
+            close_queue(q)
+
+        @classmethod
+        def _test_process_thread_attributes(cls, q):
+            mainthread_native_id = threading.main_thread().native_id
+            q.put(mainthread_native_id)
+
    @classmethod
    def _sleep_some(cls):
        time.sleep(100)