Add support for oslo.context 2.6.0

The 2.6.0 release of oslo.context adds a new attribute
'is_admin_project'.  Always include that attribute when serializing the
object, and expect it in our tests.

Change-Id: I563cf810385e84ab30d49ef079b75df279006f0d
Related-Bug: 1602081

nova/context.py

@@ -174,6 +174,13 @@ class RequestContext(context.RequestContext):
             'instance_lock_checked': getattr(self, 'instance_lock_checked',
                                              False)
         })
+        # NOTE(tonyb): This can be removed once we're certain to have a
+        # RequestContext contains 'is_admin_project', We can only get away with
+        # this because we "know" the default value of 'is_admin_project' which
+        # is very fragile.
+        values.update({
+            'is_admin_project': getattr(self, 'is_admin_project', True),
+        })
         return values
 
     @classmethod

nova/tests/unit/test_context.py

@@ -164,6 +164,7 @@ class ContextTestCase(test.NoDBTestCase):
                            'domain': None,
                            'instance_lock_checked': False,
                            'is_admin': False,
+                           'is_admin_project': True,
                            'project_id': 222,
                            'project_domain': None,
                            'project_name': None,
@@ -186,6 +187,37 @@ class ContextTestCase(test.NoDBTestCase):
                            'user_name': None}
         self.assertEqual(expected_values, values2)
 
+    def test_convert_from_dict_to_dict_version_2_4_x(self):
+        # fake dict() created with oslo.context 2.4.x, Missing is_admin_project
+        # key
+        values = {'user': '111',
+                  'user_id': '111',
+                  'tenant': '222',
+                  'project_id': '222',
+                  'domain': None, 'project_domain': None,
+                  'auth_token': None,
+                  'resource_uuid': None, 'read_only': False,
+                  'user_identity': '111 222 - - -',
+                  'instance_lock_checked': False,
+                  'user_name': None, 'project_name': None,
+                  'timestamp': '2015-03-02T20:03:59.416299',
+                  'remote_address': None, 'quota_class': None,
+                  'is_admin': True,
+                  'service_catalog': [],
+                  'read_deleted': 'no', 'show_deleted': False,
+                  'roles': [],
+                  'request_id': 'req-956637ad-354a-4bc5-b969-66fd1cc00f50',
+                  'user_domain': None}
+        ctx = context.RequestContext.from_dict(values)
+        self.assertEqual('111', ctx.user)
+        self.assertEqual('222', ctx.tenant)
+        self.assertEqual('111', ctx.user_id)
+        self.assertEqual('222', ctx.project_id)
+        # to_dict() will add is_admin_project
+        values.update({'is_admin_project': True})
+        values2 = ctx.to_dict()
+        self.assertEqual(values, values2)
+
     def test_convert_from_dict_then_to_dict(self):
         values = {'user': '111',
                   'user_id': '111',
@@ -200,6 +232,7 @@ class ContextTestCase(test.NoDBTestCase):
                   'timestamp': '2015-03-02T20:03:59.416299',
                   'remote_address': None, 'quota_class': None,
                   'is_admin': True,
+                  'is_admin_project': True,
                   'service_catalog': [],
                   'read_deleted': 'no', 'show_deleted': False,
                   'roles': [],