def test_Shortest_routes_from_station( self ):
"""
The correrct shortest routes and distances are found
for start station 'A' in the exercise.
"""
t = Traversal( Route_Map( "Data/test_route_exercise.txt" ) )
t.build_shortest_routes_from_station( 'A' )
self.assertEqual( t.traversals, shortest_routes_from_A )
