Add the zone parameter to create_subnet

cloudbridge/cloud/interfaces/services.py

@@ -740,7 +740,7 @@ def find(self, name, limit=None, marker=None):
         pass
 
     @abstractmethod
-    def create(self, name, network_id, cidr_block, zone=None):
+    def create(self, name, network_id, cidr_block, zone=zone):
         """
         Create a new subnet within the supplied network.
 
@@ -756,7 +756,7 @@ def create(self, name, network_id, cidr_block, zone=None):
                            subnet.
 
         :type zone: ``str``
-        :param zone: An optional placement zone for the subnet. Some providers
+        :param zone: A placement zone for the subnet. Some providers
                      may not support this, in which case the value is ignored.
 
         :rtype: ``object`` of :class:`.Subnet`

test/test_network_service.py

@@ -76,7 +76,8 @@ def test_crud_subnet(self):
 
         def create_subnet(name):
             return self.provider.networking.subnets.create(
-                network=net, cidr_block="10.0.0.1/24", name=name)
+                network=net, cidr_block="10.0.0.1/24", name=name,
+                zone=helpers.get_provider_test_data(self.provider, 'placement'))
 
         def cleanup_subnet(subnet):
             self.provider.networking.subnets.delete(subnet=subnet)