58f3c891ee
Add observable AppConfig (grid/snap/arc-on-crossing/animation/theme), pure-geometry orthogonal router with grid-snapped bends and perpendicular crossing detection for arc hops, and a mock flow-distribution solver that pushes supply to demand along shortest paths and records signed per-edge flow and direction. Covered by routing and flow-solver tests. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
"""Tests for orthogonal routing and crossing detection (pure geometry)."""
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import math
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from pipeline_editor.view.routing import (
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orthogonal_route, polyline_segments, segment_crossings,
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)
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def _is_orthogonal(points):
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for (x0, y0), (x1, y1) in zip(points, points[1:]):
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if not (math.isclose(x0, x1) or math.isclose(y0, y1)):
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return False
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return True
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def test_route_is_orthogonal_horizontal_ports():
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# source outlet facing right -> pump inlet facing left
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pts = orthogonal_route((0, 0), (1, 0), (200, 80), (-1, 0), grid=20)
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assert pts[0] == (0, 0)
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assert pts[-1] == (200, 80)
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assert _is_orthogonal(pts)
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assert len(pts) >= 2
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def test_route_is_orthogonal_vertical_ports():
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pts = orthogonal_route((50, 0), (0, -1), (130, 200), (0, 1), grid=20)
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assert pts[0] == (50, 0) and pts[-1] == (130, 200)
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assert _is_orthogonal(pts)
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def test_route_straight_line_collapses():
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# aligned ports facing each other -> essentially a straight run
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pts = orthogonal_route((0, 40), (1, 0), (200, 40), (-1, 0), grid=20)
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assert _is_orthogonal(pts)
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assert all(math.isclose(p[1], 40) for p in pts)
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def test_bends_snapped_to_grid():
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pts = orthogonal_route((0, 0), (1, 0), (207, 83), (-1, 0), grid=20)
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for x, y in pts[1:-1]:
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assert math.isclose(x % 20, 0) or math.isclose(x % 20, 20)
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def test_perpendicular_crossing_detected():
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horiz = polyline_segments([(0, 50), (100, 50)])
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vert = polyline_segments([(50, 0), (50, 100)])
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cx = segment_crossings(horiz, vert)
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assert cx == [(50, 50)]
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def test_shared_endpoint_is_not_a_crossing():
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# a T-junction where the vertical touches the horizontal endpoint
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horiz = polyline_segments([(0, 50), (50, 50)])
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vert = polyline_segments([(50, 50), (50, 100)])
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assert segment_crossings(horiz, vert) == []
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def test_parallel_segments_no_crossing():
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a = polyline_segments([(0, 50), (100, 50)])
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b = polyline_segments([(0, 70), (100, 70)])
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assert segment_crossings(a, b) == []
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