def example_railsystem():
railsystem = RailSystem()
# Graph: AB5, BC4, CD8, DC8, DE6, AD5, CE2, EB3, AE7
railsystem.add_rail('A', 'B', 5)
railsystem.add_rail('B', 'C', 4)
railsystem.add_rail('C', 'D', 8)
railsystem.add_rail('D', 'C', 8)
railsystem.add_rail('D', 'E', 6)
railsystem.add_rail('A', 'D', 5)
railsystem.add_rail('C', 'E', 2)
railsystem.add_rail('E', 'B', 3)
railsystem.add_rail('A', 'E', 7)
return railsystem
def setUp(self):
self.railsystem = RailSystem()
# Graph: AB5, BC4, CD8, DC8, DE6, AD5, CE2, EB3, AE7
self.railsystem.add_rail('A', 'B', 5)
self.railsystem.add_rail('B', 'C', 4)
self.railsystem.add_rail('C', 'D', 8)
self.railsystem.add_rail('D', 'C', 8)
self.railsystem.add_rail('D', 'E', 6)
self.railsystem.add_rail('A', 'D', 5)
self.railsystem.add_rail('C', 'E', 2)
self.railsystem.add_rail('E', 'B', 3)
self.railsystem.add_rail('A', 'E', 7)
self.trips = [(['A', 'B', 'C'], 9), (['A', 'D'], 5),
(['A', 'D', 'C'], 13), (['A', 'E', 'B', 'C', 'D'], 22),
(['A', 'E', 'D'], NoSuchRoute)]