Refactor of QuotaError

moved QuotaError from quota.py to exception.py

Change-Id: Ic03301492a2df323074d73e8481e0e3aee89f74c

nova/exception.py

@@ -871,3 +871,8 @@ class NoValidHost(NovaException):
 
 class WillNotSchedule(NovaException):
     message = _("Host %(host)s is not up or doesn't exist.")
+
+
+class QuotaError(ApiError):
+    """Quota Exceeded."""
+    pass

nova/quota.py

@@ -162,8 +162,3 @@ def allowed_injected_file_content_bytes(context, requested_bytes):
 def allowed_injected_file_path_bytes(context):
     """Return the number of bytes allowed in an injected file path."""
     return FLAGS.quota_max_injected_file_path_bytes
-
-
-class QuotaError(exception.ApiError):
-    """Quota Exceeded."""
-    pass

nova/tests/test_network.py

@@ -20,7 +20,6 @@ from nova import context
 from nova import db
 from nova import exception
 from nova import log as logging
-from nova import quota
 from nova import rpc
 from nova import test
 from nova.network import manager as network_manager
@@ -463,7 +462,7 @@ class VlanNetworkTestCase(test.TestCase):
 
         # this time should raise
         self.stubs.Set(self.network.db, 'floating_ip_count_by_project', fake2)
-        self.assertRaises(quota.QuotaError,
+        self.assertRaises(exception.QuotaError,
                           self.network.allocate_floating_ip,
                           ctxt,
                           ctxt.project_id)