Add V2 tenant user manager tests

The cross over between the tenant manager and the user manager is not
tested. As this will be changed soon re-enforce the current behaviour.

Change-Id: Ia13a24dc0632d3fb0a5b127538117872a7dc660d

keystoneclient/tests/v2_0/test_tenants.py

@@ -17,6 +17,7 @@ import httpretty
 from keystoneclient import exceptions
 from keystoneclient.tests.v2_0 import utils
 from keystoneclient.v2_0 import tenants
+from keystoneclient.v2_0 import users
 
 
 class TenantTests(utils.TestCase):
@@ -296,3 +297,51 @@ class TenantTests(utils.TestCase):
                                                     req_body['tenant'])
         tenant.remove_user('foo', 'barrr')
         self.assertIsInstance(tenant, tenants.Tenant)
+
+    @httpretty.activate
+    def test_tenant_list_users(self):
+        tenant_id = uuid.uuid4().hex
+        user_id1 = uuid.uuid4().hex
+        user_id2 = uuid.uuid4().hex
+
+        tenant_resp = {
+            'tenant': {
+                'name': uuid.uuid4().hex,
+                'enabled': True,
+                'id': tenant_id,
+                'description': 'test tenant',
+            }
+        }
+
+        users_resp = {
+            'users': {
+                'values': [
+                    {
+                        'email': uuid.uuid4().hex,
+                        'enabled': True,
+                        'id': user_id1,
+                        'name': uuid.uuid4().hex,
+                    },
+                    {
+                        'email': uuid.uuid4().hex,
+                        'enabled': True,
+                        'id': user_id2,
+                        'name': uuid.uuid4().hex,
+                    },
+                ]
+            }
+        }
+
+        self.stub_url(httpretty.GET, ['tenants', tenant_id], json=tenant_resp)
+        self.stub_url(httpretty.GET,
+                      ['tenants', tenant_id, 'users'],
+                      json=users_resp)
+
+        tenant = self.client.tenants.get(tenant_id)
+        user_objs = tenant.list_users()
+
+        for u in user_objs:
+            self.assertIsInstance(u, users.User)
+
+        self.assertEqual(set([user_id1, user_id2]),
+                         set([u.id for u in user_objs]))