'Returns Ext Resources.'

@classmethod
def get_resources(cls):

    exts = []
    plugin = directory.get_plugin()
    resource_name = 'ext_test_resource'
    collection_name = (resource_name + 's')
    params = RESOURCE_ATTRIBUTE_MAP.get(collection_name, dict())
    resource_registry.register_resource_by_name(resource_name)
    controller = base.create_resource(collection_name, resource_name, plugin, params, member_actions={})
    ex = extensions.ResourceExtension(collection_name, controller, member_actions={})
    exts.append(ex)
    return exts
