Files
rsp2k c91ca1994c --smooth: turn grid staircases into octilinear runs after routing
A last stage on the finished result, wire by wire: a run of legs between
two points becomes the octilinear shape joining them when its copper is
clear, the furthest point first; right-angle corners left are chamfered;
straight runs are merged. Ends, vias, points where another wire of the net
meets the wire, and legs across own-net pads stay. Every new leg and corner
is checked on the exact shapes against other nets, pads, keepouts and the
board edge, slanted legs both ways round as the verifier counts a pair.
A net whose pads end up joined differently is put back, and the whole
smoothing is dropped if the finished check finds more violations than
before. --smooth-report adds track length per layer.
2026-10-17 09:35:45 -06:00

201 lines
6.9 KiB
Python

"""Tests for the rpmroute CLI (Specctra DSN in, SES out).
Covers the engine selection contract: every engine must route a fixture from the
command line, and every option the selected engine does not implement must fail
loudly rather than being silently dropped.
"""
from __future__ import annotations
from pathlib import Path
import pytest
from rpmroute.cli import ENGINE_OPTIONS, main
FIXTURES = Path(__file__).parent / "dsn" / "fixtures"
FIXTURE = FIXTURES / "simple_2net.dsn"
CHANNEL_PACK = FIXTURES / "channel_pack.dsn"
SHOVE_NEEDED = FIXTURES / "shove_needed.dsn"
DIAGONAL_WIN = FIXTURES / "diagonal_win.dsn"
def test_cli_jar_compatible_flags_write_ses(tmp_path):
out = tmp_path / "out.ses"
rc = main(["-de", str(FIXTURE), "-do", str(out)])
assert rc == 0
text = out.read_text()
assert text.startswith("(session")
assert "(net" in text and "(wire" in text
def test_cli_short_output_alias(tmp_path):
out = tmp_path / "out.ses"
assert main([str(FIXTURE), "-o", str(out)]) == 0
assert out.read_text().startswith("(session")
def test_cli_positional_input_to_stdout(capsys):
rc = main([str(FIXTURE)])
assert rc == 0
assert "(session" in capsys.readouterr().out
def test_cli_missing_input_errors():
with pytest.raises(SystemExit):
main([])
def test_cli_unreadable_input_returns_2(capsys):
rc = main(["/nonexistent/board.dsn"])
assert rc == 2
assert "cannot read" in capsys.readouterr().err
def test_cli_bad_layers_errors(capsys):
with pytest.raises(SystemExit):
main([str(FIXTURE), "--layers", "top,bottom"])
assert "--layers must be comma-separated integers" in capsys.readouterr().err
# --- engine selection -------------------------------------------------------
@pytest.mark.parametrize("engine", sorted(ENGINE_OPTIONS))
def test_cli_every_engine_routes_a_fixture(engine, tmp_path):
out = tmp_path / f"{engine}.ses"
rc = main([str(FIXTURE), "--engine", engine, "-do", str(out)])
assert rc == 0
text = out.read_text()
assert text.startswith("(session")
assert "(wire" in text
def test_cli_default_engine_is_exact(tmp_path):
"""The default is the engine that checks its copper: grid output can short
and say nothing (a user routing with no flags shipped 15 crossings)."""
default = tmp_path / "default.ses"
exact = tmp_path / "exact.ses"
assert main([str(FIXTURE), "-do", str(default)]) == 0
assert main([str(FIXTURE), "--engine", "exact", "-do", str(exact)]) == 0
assert default.read_text() == exact.read_text()
@pytest.mark.parametrize("engine", ["grid", "room"])
def test_unchecked_engines_are_checked_after_routing(tmp_path, capsys, engine):
assert main([str(FIXTURE), "--engine", engine, "-do", str(tmp_path / "out.ses")]) == 0
assert f"{engine} output checked on exact shapes: 0 short(s), 0 clearance" in capsys.readouterr().err
def test_strict_fails_a_run_whose_copper_is_not_clean(tmp_path, monkeypatch, capsys):
from rpmroute import cli
from rpmroute.route.verify import VerifyReport, Violation
bad = VerifyReport(shorts=1, short_examples=[Violation("A", "B", "F.Cu", 1.0, 2.0)])
monkeypatch.setattr(cli, "verify_result", lambda dsn, result: bad)
out = tmp_path / "out.ses"
assert main([str(FIXTURE), "--engine", "grid", "-do", str(out)]) == 0
assert main([str(FIXTURE), "--engine", "grid", "--strict", "-do", str(out)]) == 3
assert out.exists() # the session is still written
err = capsys.readouterr().err
assert "short: A x B on F.Cu at (1.00, 2.00) mm" in err and "not DRC-clean" in err
def test_the_exact_engine_does_not_warn(tmp_path, capsys):
assert main([str(FIXTURE), "-do", str(tmp_path / "out.ses")]) == 0
assert "WARNING" not in capsys.readouterr().err
def test_cli_room_pack_routes(tmp_path):
out = tmp_path / "pack.ses"
rc = main([str(CHANNEL_PACK), "--engine", "room", "--pack", "-do", str(out)])
assert rc == 0
assert "(wire" in out.read_text()
def test_cli_room_shove_routes(tmp_path):
out = tmp_path / "shove.ses"
rc = main([str(SHOVE_NEEDED), "--engine", "room", "--shove", "-do", str(out)])
assert rc == 0
assert "(wire" in out.read_text()
def test_cli_exact_shove_routes(tmp_path):
out = tmp_path / "shove.ses"
rc = main([str(SHOVE_NEEDED), "--engine", "exact", "--shove", "-do", str(out)])
assert rc == 0
assert "(wire" in out.read_text()
def test_cli_exact_diagonal_routes(tmp_path):
out = tmp_path / "diag.ses"
rc = main([str(DIAGONAL_WIN), "--engine", "exact", "--diagonal", "-do", str(out)])
assert rc == 0
assert "(wire" in out.read_text()
def test_cli_max_passes_is_honoured_not_advisory(tmp_path):
out = tmp_path / "mp.ses"
rc = main([str(FIXTURE), "--engine", "exact", "-mp", "3", "-do", str(out)])
assert rc == 0
assert "(wire" in out.read_text()
# --- unsupported combinations must error, never be silently ignored ---------
@pytest.mark.parametrize(
("argv", "flag"),
[
(["--engine", "grid", "--pack"], "--pack"),
(["--engine", "grid", "--shove"], "--shove"),
(["--engine", "grid", "--diagonal"], "--diagonal"),
(["--engine", "exact", "--pack"], "--pack"),
(["--engine", "room", "--diagonal"], "--diagonal"),
(["--engine", "room", "--no-rip-up"], "--no-rip-up"),
(["--engine", "room", "-mp", "5"], "-mp/--max-passes"),
],
)
def test_cli_unsupported_option_errors(argv, flag, capsys):
with pytest.raises(SystemExit) as excinfo:
main([str(FIXTURE), *argv])
assert excinfo.value.code == 2
err = capsys.readouterr().err
assert flag in err
assert "not supported by --engine" in err
assert "supported by:" in err
def test_cli_unknown_engine_errors(capsys):
with pytest.raises(SystemExit):
main([str(FIXTURE), "--engine", "quantum"])
assert "invalid choice" in capsys.readouterr().err
def test_cli_supported_combinations_are_accepted(tmp_path):
"""Every (engine, flag) pair the matrix claims to support must actually run."""
argv_for = {
"pack": ["--pack"],
"shove": ["--shove"],
"diagonal": ["--diagonal"],
"rip_up": ["--no-rip-up"],
"max_passes": ["-mp", "4"],
"seed": ["--seed", "3"],
"orders": ["--orders", "2"],
"promote": ["--promote-failures", "2"],
"access": ["--access-cost", "5"],
"negotiate": ["--negotiate", "2"],
"rollback": ["--no-rollback"],
"tree": ["--no-tree"],
"window": ["--window-reroute", "1"],
"vias": ["--reduce-vias"],
"via_cost": ["--via-cost", "40"],
"smooth": ["--smooth"],
}
for engine, options in ENGINE_OPTIONS.items():
for option in options:
out = tmp_path / f"{engine}-{option}.ses"
rc = main([str(FIXTURE), "--engine", engine, *argv_for[option], "-do", str(out)])
assert rc == 0, f"{engine} + {option} failed"
assert out.read_text().startswith("(session")