[tests] Add machine-generated test suite

masque/test/test_advanced_routing.py

@@ -0,0 +1,82 @@
+import pytest
+import numpy
+from numpy.testing import assert_equal, assert_allclose
+from numpy import pi
+
+from ..builder import Pather
+from ..builder.tools import PathTool
+from ..library import Library
+from ..ports import Port
+
+@pytest.fixture
+def advanced_pather():
+    lib = Library()
+    # Simple PathTool: 2um width on layer (1,0)
+    tool = PathTool(layer=(1, 0), width=2, ptype="wire")
+    p = Pather(lib, tools=tool)
+    return p, tool, lib
+
+def test_path_into_straight(advanced_pather):
+    p, tool, lib = advanced_pather
+    # Facing ports
+    p.ports["src"] = Port((0, 0), 0, ptype="wire") # Facing East (into device)
+    # Forward (+pi relative to port) is West (-x).
+    # Put destination at (-20, 0) pointing East (pi).
+    p.ports["dst"] = Port((-20, 0), pi, ptype="wire")
+    
+    p.path_into("src", "dst")
+    
+    assert "src" not in p.ports
+    assert "dst" not in p.ports
+    # Pather.path adds a Reference to the generated pattern
+    assert len(p.pattern.refs) == 1
+
+def test_path_into_bend(advanced_pather):
+    p, tool, lib = advanced_pather
+    # Source at (0,0) rot 0 (facing East). Forward is West (-x).
+    p.ports["src"] = Port((0, 0), 0, ptype="wire")
+    # Destination at (-20, -20) rot pi (facing West). Forward is East (+x).
+    # Wait, src forward is -x. dst is at -20, -20.
+    # To use a single bend, dst should be at some -x, -y and its rotation should be 3pi/2 (facing South).
+    # Forward for South is North (+y).
+    p.ports["dst"] = Port((-20, -20), 3*pi/2, ptype="wire")
+    
+    p.path_into("src", "dst")
+    
+    assert "src" not in p.ports
+    assert "dst" not in p.ports
+    # Single bend should result in 2 segments (one for x move, one for y move)
+    assert len(p.pattern.refs) == 2
+
+def test_path_into_sbend(advanced_pather):
+    p, tool, lib = advanced_pather
+    # Facing but offset ports
+    p.ports["src"] = Port((0, 0), 0, ptype="wire") # Forward is West (-x)
+    p.ports["dst"] = Port((-20, -10), pi, ptype="wire") # Facing East (rot pi)
+    
+    p.path_into("src", "dst")
+    
+    assert "src" not in p.ports
+    assert "dst" not in p.ports
+
+def test_path_from(advanced_pather):
+    p, tool, lib = advanced_pather
+    p.ports["src"] = Port((0, 0), 0, ptype="wire")
+    p.ports["dst"] = Port((-20, 0), pi, ptype="wire")
+    
+    p.at("dst").path_from("src")
+    
+    assert "src" not in p.ports
+    assert "dst" not in p.ports
+
+def test_path_into_thru(advanced_pather):
+    p, tool, lib = advanced_pather
+    p.ports["src"] = Port((0, 0), 0, ptype="wire")
+    p.ports["dst"] = Port((-20, 0), pi, ptype="wire")
+    p.ports["other"] = Port((10, 10), 0)
+    
+    p.path_into("src", "dst", thru="other")
+    
+    assert "src" in p.ports
+    assert_equal(p.ports["src"].offset, [10, 10])
+    assert "other" not in p.ports