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Ryan Malloy a06adbee13 Add shove-in-rooms and gate-placement fixtures and tests 
rooms_shove_channel is the headline density win: a sealed NET_A wall
leaves no top<->bottom door, so plain room routing drops NET_C; with
shove=True NET_A is nudged aside and both nets route, DRC-clean and
deterministic. rooms_wide_door seats two nets through one wide gap at
distinct projected gate points with no shove.

Cover the occupancy-aware projection math directly, assert the four
foundation fixtures stay byte-identical under shove=True (shoves==0), and
extend the room DRC-clean parametrize with both new fixtures.
2026-07-13 10:27:17 -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
narrow_channel.dsn
Add continuity-win fixture and room-router tests
2026-07-13 09:38:52 -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
rooms_shove_channel.dsn
Add shove-in-rooms and gate-placement fixtures and tests
2026-07-13 10:27:17 -06:00
rooms_wide_door.dsn
Add shove-in-rooms and gate-placement fixtures and tests
2026-07-13 10:27:17 -06:00
shove_needed.dsn
Add dense fixture and shove tests
2026-07-13 02:43:35 -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.