def get_network_roles(
cls, instance, merge_policy=NetworkRoleMergePolicy()):
"""Method for receiving network roles for particular cluster
:param instance: nailgun.db.sqlalchemy.models.Cluster instance
:param merge_policy: the policy to merge same roles
:returns: List of network roles' descriptions
"""
return PluginManager.get_network_roles(instance, merge_policy)
def setUp(self):
super(TestNetworkRoleMergePolicy, self).setUp()
self.policy = NetworkRoleMergePolicy()
