micheleandCursor
45e820fabc
PS-SI-001 and decoupling skip without a numeric layout_rule. Tests use simple_project nets, not invented USBPHY boards. Co-authored-by: Cursor <cursoragent@cursor.com>
64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
"""layout_rules from datasheet — closed kind enum, no invented millimetres.
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Favor: decoupling_proximity with a numeric max_distance_mm and source_page;
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empty list is valid (explicit skip).
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Against: unknown kind is rejected; a non-numeric distance becomes null
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(not a guessed JEDEC 3 mm); thermal_via without min_via_count is kept
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but distance stays unset.
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"""
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from __future__ import annotations
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from backend.pinscopex.layout_rules import validate_layout_rules
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def test_valid_decoupling_proximity_keeps_distance():
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ok, errors = validate_layout_rules([
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{
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"kind": "decoupling_proximity",
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"pin": "VDD",
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"cap_value_hint": "100nF",
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"max_distance_mm": 2.0,
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"same_layer": True,
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"source_page": 14,
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}
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])
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assert errors == []
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assert len(ok) == 1
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assert ok[0]["max_distance_mm"] == 2.0
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assert ok[0]["kind"] == "decoupling_proximity"
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def test_length_match_kind_is_accepted():
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ok, errors = validate_layout_rules([
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{"kind": "length_match", "net_class": "diff", "max_distance_mm": 2.0, "source_page": 9},
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])
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assert errors == []
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assert ok[0]["kind"] == "length_match"
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assert ok[0]["max_distance_mm"] == 2.0
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def test_empty_list_is_explicit_skip():
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ok, errors = validate_layout_rules([])
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assert ok == []
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assert errors == []
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def test_unknown_kind_rejected_and_bad_distance_not_invented():
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ok, errors = validate_layout_rules([
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{"kind": "jedec_land_pattern", "max_distance_mm": 3.0},
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{
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"kind": "decoupling_proximity",
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"pin": "VDD",
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"max_distance_mm": "close",
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"source_page": 2,
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},
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{"kind": "thermal_via", "pin": "EP", "min_via_count": 4},
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])
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assert any("kind" in e.lower() or "jedec" in e.lower() for e in errors)
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dist_rows = [r for r in ok if r["kind"] == "decoupling_proximity"]
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assert len(dist_rows) == 1
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assert dist_rows[0]["max_distance_mm"] is None
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via = [r for r in ok if r["kind"] == "thermal_via"]
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assert len(via) == 1 and via[0]["min_via_count"] == 4
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