def test_set_appserver_active(self, mocks):
"""
Test set_appserver_active()
"""
instance = OpenEdXInstanceFactory(internal_lms_domain='test.activate.opencraft.co.uk',
use_ephemeral_databases=True)
appserver_id = instance.spawn_appserver()
instance.set_appserver_active(appserver_id)
instance.refresh_from_db()
self.assertEqual(instance.active_appserver.pk, appserver_id)
self.assertEqual(mocks.mock_load_balancer_run_playbook.call_count, 2)
instance.set_appserver_inactive()
instance.refresh_from_db()
self.assertIsNone(instance.active_appserver)
self.assertEqual(mocks.mock_load_balancer_run_playbook.call_count, 3)
