That would be a unit tests that you can do with the sampledata graph
once you SELECT * INTO lined_edge_table SELECT pgr_lineGraph(.......
without removing edges you execute a dijkstra and analyze results.
and make some sort of conversion of results on terms of lined_edge_table to terms of edge_table
That would be a unit tests that you can do with the sampledata graph once you SELECT * INTO lined_edge_table SELECT pgr_lineGraph(....... without removing edges you execute a dijkstra and analyze results. and make some sort of conversion of results on terms of lined_edge_table to terms of edge_table