#NEWLINE# def test_service_plugin_conflicts_with_core_plugin( self ) : #NEWLINE# #INDENT# cfg . CONF . set_override ( 'service_plugins' , [ 'neutron.tests.unit.dummy_plugin.DummyServicePlugin' ] ) #NEWLINE# cfg . CONF . set_override ( 'core_plugin' , 'neutron.tests.unit.test_manager.MultiServiceCorePlugin' ) #NEWLINE# e = self . assertRaises ( ValueError , manager . NeutronManager . get_instance ) #NEWLINE# self . assertIn ( constants . DUMMY , str ( self ) )