added verification for cert returned in Register response

integration-tests/test_register.py

@@ -12,6 +12,7 @@
 
 import os
 import pytest
+import json
 from conftest import RHSMPrivateBus
 from constants import RHSM, RHSM_REGISTER_SERVER, RHSM_REGISTER
 from dasbus.error import DBusError
@@ -47,14 +48,20 @@ def test_register(any_candlepin, subman, test_config):
     with RHSMPrivateBus(proxy) as private_bus:
         private_proxy = private_bus.get_proxy(RHSM.service_name, RHSM_REGISTER.object_path)
         locale = os.environ.get("LANG", "")
-        private_proxy.Register(
+        response = private_proxy.Register(
             "",
             test_config.get("candlepin", "username"),
             test_config.get("candlepin", "password"),
             {},
             {},
             locale,
         )
+        response_data = json.loads(response)
+        assert "idCert" in response_data, "A response contains of consumer certificate"
+        assert frozenset(["key", "cert", "updated", "created", "id", "serial"]).issubset(
+            frozenset(response_data["idCert"].keys())
+        )
+
     assert subman.is_registered