test_esipp_network.py

        
        net.arc_is_undirected(('X','Y', 1))
                                
    # *************************************************************************
    # *************************************************************************
    
    def test_pseudo_unique_key_generation(self):
        
        # create network
        
        network = Network()
        
        # add node A
        
        network.add_waypoint_node(node_key='A')
        
        # add node B
        
        network.add_waypoint_node(node_key='B')
        
        # identify nodes
        
        network.identify_node_types()
        
        # add arcs
        
        key_list = ['3e225573-4e78-48c8-bb08-efbeeb795c22',
                    'f6d30428-15d1-41e9-a952-0742eaaa5a31',
                    '8c29b906-2518-41c5-ada8-07b83508b5b8',
                    'f9a72a39-1422-4a02-af97-906ce79c32a3',
                    'b6941a48-10cc-465d-bf53-178bd2939bd1']
        
        for key in key_list:
            
            network.add_edge(
                u_for_edge='A',
                v_for_edge='B',
                key=key,
                **{network.KEY_ARC_UND: False,
                   network.KEY_ARC_TECH: None}
                )
            
        # use a seed number to trigger more iterations
        
        import uuid
        rand = random.Random()
        rand.seed(360)
        uuid.uuid4 = lambda: uuid.UUID(int=rand.getrandbits(128), version=4)
        
        error_triggered = False
        try:
            _ = network.get_pseudo_unique_arc_key(
                node_key_start='A', 
                node_key_end='B',
                max_iterations=len(key_list)-1)
        except Exception:
            error_triggered = True
        assert error_triggered

# *****************************************************************************
# *****************************************************************************