History

Ryan Malloy da91382015 Add congested fixture and rip-up-and-retry tests

Adds ripup_needed.dsn: one signal layer (B.Cu is a power plane, so vias
are impossible) with two nets whose greedy order strands NET_B, but where
rip-up reroutes NET_A around NET_B to connect both.

Tests: greedy (rip_up=False) leaves >= 1 connection unrouted with no vias;
rip-up connects all with no vias; the result is deterministic across
re-runs; rip-up keeps endpoints on pads and produces no same-layer cross
between nets (ripped traces leave no orphaned occupancy). The crossing
board's single-layer test now targets the greedy path explicitly, and a
regression test asserts the real KiCad board still connects all four of
its multi-pin nets. Oracle-gated parity added for the congested board.

2026-07-12 13:40:02 -06:00

crossing_2net.dsn

Add crossing fixture and multi-layer/via routing tests

2026-07-12 13:21:00 -06:00

empty_board.dsn

Implement Specctra DSN parser with typed board model

2026-07-11 15:21:18 -06:00

kicad_routable.dsn

Add FreeRouting JAR oracle harness for behaviour-level validation

2026-07-12 08:12:03 -06:00

README.md

Implement Specctra DSN parser with typed board model

2026-07-11 15:21:18 -06:00

ripup_needed.dsn

Add congested fixture and rip-up-and-retry tests

2026-07-12 13:40:02 -06:00

simple_2net.dsn

Add MVP grid maze router and DSN->SES routing pipeline

2026-07-12 11:25:03 -06:00

smd_demo.dsn

Implement Specctra DSN parser with typed board model

2026-07-11 15:21:18 -06:00

README.md

DSN test fixtures

Hand-crafted minimal Specctra DSN files, written to exercise the parser. They are modeled on the real fixtures shipped in the upstream FreeRouting repo (fixtures/empty_board.dsn and fixtures/SMD-routing-issue-demo.dsn) so the grammar and formatting match what kicad-cli pcb export specctra-dsn and FreeRouting itself produce, but they were typed fresh here (no upstream file is copied into this tree).

empty_board.dsn — the smallest valid board: parser, resolution, unit, and a structure with two signal layers and a pcb boundary path. Modeled on FreeRouting fixtures/empty_board.dsn.
smd_demo.dsn — a fuller board exercising every scope the parser handles: quoted board/padstack/image names, via, default rule (width + clearance with a (type smd_smd) pair), a keepout, padstacks (rect and circle pads), images with pins, placement with front/rotation, nets with Comp-Pin references, and a class with circuit/use_via and a rule. Modeled on FreeRouting fixtures/SMD-routing-issue-demo.dsn.