Bruno Postle
13f73be771
genome.py (homemaker-py-k2g): Genome = base-floor GNode tree + per-storey StoreyDelta (undivides, divide subtrees, leaf retypes, height) + base metadata. encode/decode round-trips dom.py Node trees. Key empirical finding baked into the design: upper-storey nodes carry heavily drifted DEAD fields (97 inherited-cut divisions, 187 rotations differ from the owning node below across the corpus) — dead because geometry delegates to below before reading them. decode canonicalises them; encode stores only owned state, so genomes from drifted sources compare equal (fixed-point test). Acceptance: 35/35 corpus files fitness-identical after round-trip through the oracle (experiments/genome_parity.py, URB_NO_OCCLUSION=1); owned-cut projection + genome fixed-point + storey counts in tests/test_genome.py (16 tests pass). Closes homemaker-py-k2g. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
68 lines
2.1 KiB
Python
68 lines
2.1 KiB
Python
"""Genome encode/decode tests (oracle-free; corpus-backed)."""
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from pathlib import Path
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import pytest
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from homemaker import dom, genome, solver
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CORPUS = Path("/home/bruno/src/urb/examples/programme-house")
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pytestmark = pytest.mark.skipif(not CORPUS.is_dir(), reason="Urb corpus not available")
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def corpus():
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return sorted(CORPUS.glob("*.dom"))
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def owned_projection(root: dom.Node):
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"""Everything fitness can see: per-level shape+leaf types, owned cut
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divisions, heights, base metadata. Dead fields excluded by construction."""
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def shape(n: dom.Node):
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if not n.divided:
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return n.type
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return (shape(n.left), shape(n.right))
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lvls = dom.levels(root)
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owned = {}
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for li, lvl in enumerate(lvls):
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for b in solver._branches(lvl):
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if b.below is None or not b.below.divided:
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owned[(li, b.id)] = tuple(b.division)
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return {
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"shapes": [shape(lvl) for lvl in lvls],
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"owned_cuts": owned,
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"heights": [lvl.height for lvl in lvls],
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"base_meta": {k: getattr(lvls[0], k) for k in
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("node", "node_file", "perimeter", "elevation",
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"wall_inner", "wall_outer")},
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}
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def test_roundtrip_preserves_owned_projection():
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for f in corpus():
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root = dom.load(str(f))
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root2 = genome.decode(genome.encode(root))
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assert owned_projection(root2) == owned_projection(root), f.name
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def test_genome_is_a_fixed_point():
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# encode(decode(g)) == g: nothing fitness-relevant is lost or invented
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for f in corpus():
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g1 = genome.encode(dom.load(str(f)))
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g2 = genome.encode(genome.decode(g1))
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assert g2 == g1, f.name
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def test_decoded_tree_dumps_and_reloads():
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for f in corpus():
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root2 = genome.decode(genome.encode(dom.load(str(f))))
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dom.dump(root2, "/tmp/genome_rt.dom")
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root3 = dom.load("/tmp/genome_rt.dom")
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assert owned_projection(root3) == owned_projection(root2), f.name
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def test_storey_counts():
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for f in corpus():
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root = dom.load(str(f))
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assert genome.encode(root).n_storeys == len(dom.levels(root)), f.name
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