[3.6] bpo-31150: Wait for child process in test_forkinthread to avoid thread reaped warnings (#3041)

ammaraskar · vstinner · commit 4388b4257abf · 2017-08-09T16:59:21.000+02:00
diff --git a/Lib/test/test_thread.py b/Lib/test/test_thread.py
@@ -239,6 +239,8 @@ def thread1():
                     os._exit(0)
             else: # parent
                 os.close(self.write_fd)
+                pid, status = os.waitpid(pid, 0)
+                self.assertEqual(status, 0)
 
         thread.start_new_thread(thread1, ())
         self.assertEqual(os.read(self.read_fd, 2), b"OK",
