diff --git a/Lib/test/lock_tests.py b/Lib/test/lock_tests.py
index bfbf44e..1a24bde 100644
--- a/Lib/test/lock_tests.py
+++ b/Lib/test/lock_tests.py
@@ -80,6 +80,11 @@
         lock = self.locktype()
         del lock
 
+    def test_repr(self):
+        lock = self.locktype()
+        repr(lock)
+        del lock
+
     def test_acquire_destroy(self):
         lock = self.locktype()
         lock.acquire()