Fixes per tenant quota doesn't work

Fixes bug 1101331

Change-Id: I9c4e88b437506ed5818ee56ff6fd70588cb0f965

quantum/api/v2/base.py

@@ -40,8 +40,6 @@ FAULT_MAP = {exceptions.NotFound: webob.exc.HTTPNotFound,
              ValueError: webob.exc.HTTPBadRequest,
              }
 
-QUOTAS = quota.QUOTAS
-
 
 def _fields(request):
     """
@@ -284,9 +282,9 @@ class Controller(object):
                            plugin=self._plugin)
             try:
                 tenant_id = item[self._resource]['tenant_id']
-                count = QUOTAS.count(request.context, self._resource,
-                                     self._plugin, self._collection,
-                                     tenant_id)
+                count = quota.QUOTAS.count(request.context, self._resource,
+                                           self._plugin, self._collection,
+                                           tenant_id)
                 if bulk:
                     delta = deltas.get(tenant_id, 0) + 1
                     deltas[tenant_id] = delta
@@ -297,9 +295,9 @@ class Controller(object):
                 # We don't want to quota this resource
                 LOG.debug(e)
             else:
-                QUOTAS.limit_check(request.context,
-                                   item[self._resource]['tenant_id'],
-                                   **kwargs)
+                quota.QUOTAS.limit_check(request.context,
+                                         item[self._resource]['tenant_id'],
+                                         **kwargs)
 
         def notify(create_result):
             notifier_api.notify(request.context,

quantum/db/quota_db.py

@@ -145,7 +145,7 @@ class DbQuotaDriver(object):
         quotas = DbQuotaDriver.get_tenant_quotas(
             context, sub_resources, context.tenant_id)
 
-        return dict((k, v['limit']) for k, v in quotas.items())
+        return dict((k, v) for k, v in quotas.items())
 
     def limit_check(self, context, tenant_id, resources, values):
         """Check simple quota limits.

quantum/quota.py

@@ -282,9 +282,12 @@ def _count_resource(context, plugin, resources, tenant_id):
         return len(obj_list) if obj_list else 0
 
 
-resources = []
-for resource_item in cfg.CONF.QUOTAS.quota_items:
-    resources.append(CountableResource(resource_item, _count_resource,
-                                       'quota_' + resource_item))
+def register_resources_from_config():
+    resources = []
+    for resource_item in cfg.CONF.QUOTAS.quota_items:
+        resources.append(CountableResource(resource_item, _count_resource,
+                                           'quota_' + resource_item))
+    QUOTAS.register_resources(resources)
 
-QUOTAS.register_resources(resources)
+
+register_resources_from_config()

quantum/tests/unit/test_quota_per_tenant_ext.py

@@ -1,4 +1,4 @@
-import unittest
+import unittest2 as unittest
 import webtest
 
 import mock
@@ -6,6 +6,7 @@ import mock
 from quantum.api import extensions
 from quantum.api.v2 import attributes
 from quantum.common import config
+from quantum.common import exceptions
 from quantum import context
 from quantum.db import api as db
 from quantum import manager
@@ -53,7 +54,8 @@ class QuotaExtensionTestCase(unittest.TestCase):
             'quota_items',
             ['network', 'subnet', 'port', 'extra1'],
             group='QUOTAS')
-
+        quota.QUOTAS = quota.QuotaEngine()
+        quota.register_resources_from_config()
         self._plugin_patcher = mock.patch(TARGET_PLUGIN, autospec=True)
         self.plugin = self._plugin_patcher.start()
         self.plugin.return_value.supported_extension_aliases = ['quotas']
@@ -153,3 +155,35 @@ class QuotaExtensionTestCase(unittest.TestCase):
             self.assertEqual(404, res.status_int)
         except Exception:
             pass
+
+    def test_quotas_limit_check(self):
+        tenant_id = 'tenant_id1'
+        env = {'quantum.context': context.Context('', tenant_id,
+                                                  is_admin=True)}
+        quotas = {'quota': {'network': 5}}
+        res = self.api.put_json(_get_path('quotas', id=tenant_id, fmt='json'),
+                                quotas, extra_environ=env)
+        self.assertEqual(200, res.status_int)
+        quota.QUOTAS.limit_check(context.Context('', tenant_id),
+                                 tenant_id,
+                                 network=4)
+
+    def test_quotas_limit_check_with_over_quota(self):
+        tenant_id = 'tenant_id1'
+        env = {'quantum.context': context.Context('', tenant_id,
+                                                  is_admin=True)}
+        quotas = {'quota': {'network': 5}}
+        res = self.api.put_json(_get_path('quotas', id=tenant_id, fmt='json'),
+                                quotas, extra_environ=env)
+        self.assertEqual(200, res.status_int)
+        with self.assertRaises(exceptions.OverQuota):
+            quota.QUOTAS.limit_check(context.Context('', tenant_id),
+                                     tenant_id,
+                                     network=6)
+
+    def test_quotas_limit_check_with_invalid_quota_value(self):
+        tenant_id = 'tenant_id1'
+        with self.assertRaises(exceptions.InvalidQuotaValue):
+            quota.QUOTAS.limit_check(context.Context('', tenant_id),
+                                     tenant_id,
+                                     network=-1)