Record arguments to _Client.

Author: Luke Sneeringer

spanner/unit_tests/test_client.py

@@ -152,14 +152,16 @@ def test_instance_admin_api(self):
 
         class _Client(object):
             def __init__(self, *args, **kwargs):
-                pass
+                self.args = args
+                self.kwargs = kwargs
 
         with _Monkey(MUT, InstanceAdminClient=_Client):
             api = client.instance_admin_api
 
         self.assertTrue(isinstance(api, _Client))
         again = client.instance_admin_api
         self.assertTrue(again is api)
+        self.assertEqual(kwargs['lib_name'], 'gccl')
 
     def test_database_admin_api(self):
         from google.cloud._testing import _Monkey
@@ -170,14 +172,16 @@ def test_database_admin_api(self):
 
         class _Client(object):
             def __init__(self, *args, **kwargs):
-                pass
+                self.args = args
+                self.kwargs = kwargs
 
         with _Monkey(MUT, DatabaseAdminClient=_Client):
             api = client.database_admin_api
 
         self.assertTrue(isinstance(api, _Client))
         again = client.database_admin_api
         self.assertTrue(again is api)
+        self.assertEqual(kwargs['lib_name'], 'gccl')
 
     def test_copy(self):
         credentials = _Credentials('value')