micheleandCursor
86121e6547
Propose positions only from PCB footprints plus numeric decoupling max_distance_mm; otherwise skip with an explicit reason. Co-authored-by: Cursor <cursoragent@cursor.com>
110 lines
3.2 KiB
Python
110 lines
3.2 KiB
Python
"""Layout F2 placement_pack — gated; no invented millimetres."""
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from __future__ import annotations
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from pathlib import Path
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from backend.pinscopex.functional_groups import (
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PlacementIcGroup,
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PlacementSatellite,
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FunctionalGroupsReport,
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build_functional_groups,
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)
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from backend.pinscopex.models import (
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DesignGraph,
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LayoutFootprint,
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LayoutGraph,
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LayoutPad,
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)
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from backend.pinscopex.placement_pack import build_placement_pack
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SIMPLE = Path(__file__).resolve().parents[1] / "simple_project"
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def _graph() -> DesignGraph:
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return DesignGraph.model_validate_json(
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(SIMPLE / "design_graph.json").read_text(encoding="utf-8"),
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)
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def test_simple_project_without_pcb_skips_pack():
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plan = build_functional_groups(_graph())
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pack = build_placement_pack(plan, None)
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assert pack.status == "skipped"
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assert pack.skip_reason == "no_pcb_footprints"
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assert pack.placements == []
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def test_layout_without_numeric_rules_skips():
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plan = FunctionalGroupsReport(
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groups=[
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PlacementIcGroup(
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ref="U1",
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layout_rules=[{"kind": "decoupling_proximity", "pin": "5"}],
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satellites=[
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PlacementSatellite(
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ref="C4",
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component_type="capacitor",
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role_hint="decoupling",
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nets=["+3V3"],
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),
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],
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),
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],
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)
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layout = LayoutGraph(
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footprints={
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"U1": LayoutFootprint(
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reference="U1", x=0, y=0, layer="F.Cu",
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pads=[LayoutPad(number="5", x=0.0, y=0.0, net="+3V3")],
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),
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},
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)
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pack = build_placement_pack(plan, layout)
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assert pack.status == "skipped"
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assert pack.skip_reason == "no_numeric_layout_rules"
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def test_numeric_rule_proposes_satellite_within_limit():
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limit = 2.0
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plan = FunctionalGroupsReport(
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groups=[
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PlacementIcGroup(
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ref="U1",
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layout_rules=[{
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"kind": "decoupling_proximity",
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"pin": "5",
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"max_distance_mm": limit,
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}],
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satellites=[
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PlacementSatellite(
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ref="C4",
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component_type="capacitor",
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role_hint="decoupling",
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nets=["+3V3"],
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),
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],
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),
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],
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)
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layout = LayoutGraph(
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footprints={
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"U1": LayoutFootprint(
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reference="U1", x=0, y=0, layer="F.Cu",
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pads=[LayoutPad(number="5", x=10.0, y=20.0, net="+3V3")],
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),
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},
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)
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pack = build_placement_pack(plan, layout)
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assert pack.status == "packed"
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assert pack.skip_reason is None
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assert len(pack.placements) == 1
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p = pack.placements[0]
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assert p.ref == "C4"
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assert p.anchor_ref == "U1"
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assert p.max_distance_mm == limit
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assert p.layer == "F.Cu"
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dist = ((p.proposed_x - 10.0) ** 2 + (p.proposed_y - 20.0) ** 2) ** 0.5
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assert dist <= limit + 1e-6
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assert dist > 0
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