Merge pull request kubernetes-client#1650 from AurelienGasser/fix-returncode-idempotent

test: WSClient.returncode idempotence

Author: k8s-ci-robot

kubernetes/e2e_test/test_client.py

@@ -221,6 +221,7 @@ def test_exit_code(self):
             self.assertIsNone(client.returncode)
             client.run_forever(timeout=10)
             self.assertEqual(client.returncode, value)
+            self.assertEqual(client.returncode, value)  # check idempotence
 
         resp = api.delete_namespaced_pod(name=name, body={},
                                          namespace='default')