generated from coulomb/repo-seed
tegwick
da540d4eea
For any page name, the set of pages that link to it: extract wikilinks from every union page (new UnionGraph.iter_pages enumeration) and index the resolved ones by target name. Red-links create no backlinks; entries carry source provenance; a chorus target aggregates the backlinks of all members under one name. Derived/ recomputable, stores nothing canonical. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
52 lines
1.9 KiB
Python
52 lines
1.9 KiB
Python
"""Tests for the BackLinks derived view (SHARD-WP-0010 T2)."""
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from shard_wiki.adapters import FolderAdapter
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from shard_wiki.model import Identity
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from shard_wiki.union import UnionGraph
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from shard_wiki.views import build_backlinks
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def _shard(tmp_path, name, files):
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root = tmp_path / name
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for rel, text in files.items():
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p = root / rel
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p.parent.mkdir(parents=True, exist_ok=True)
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p.write_text(text, encoding="utf-8")
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return FolderAdapter(name, root)
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def test_link_yields_backlink_with_provenance(tmp_path):
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u = UnionGraph("space")
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u.attach(_shard(tmp_path, "shardA", {"A.md": "see [[B]]", "B.md": "target"}))
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index = build_backlinks(u)
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assert index.sources("B") == frozenset({Identity("shardA", "A")})
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(bl,) = index.to("B")
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assert bl.source_shard == "shardA" # entry carries source provenance
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def test_red_links_create_no_backlinks(tmp_path):
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u = UnionGraph("space")
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u.attach(_shard(tmp_path, "shardA", {"A.md": "see [[Ghost]]"}))
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index = build_backlinks(u)
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assert index.to("Ghost") == () # unresolved target → no backlink
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assert "Ghost" not in index.names()
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def test_chorus_target_aggregates_backlinks(tmp_path):
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# "Home" exists in two shards (a chorus); links to it from anywhere aggregate under one name.
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u = UnionGraph("space")
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u.attach(_shard(tmp_path, "shardA", {"Home.md": "A home", "A.md": "[[Home]]"}))
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u.attach(_shard(tmp_path, "shardB", {"Home.md": "B home", "B.md": "[[Home]]"}))
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index = build_backlinks(u)
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assert index.sources("Home") == frozenset(
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{Identity("shardA", "A"), Identity("shardB", "B")}
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)
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def test_backlinks_span_shards(tmp_path):
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u = UnionGraph("space")
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u.attach(_shard(tmp_path, "shardA", {"Index.md": "x"}))
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u.attach(_shard(tmp_path, "shardB", {"B.md": "links [[Index]]"}))
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index = build_backlinks(u)
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assert index.sources("Index") == frozenset({Identity("shardB", "B")})
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