75 lines
2.7 KiB
Python
75 lines
2.7 KiB
Python
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"""Migration + wiring of the git coordination backend (SHARD-WP-0009 T4)."""
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from shard_wiki.coordination import (
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DecisionLog,
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EventType,
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GitEventStore,
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InMemoryEventStore,
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export_jsonl,
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import_jsonl,
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migrate_space,
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)
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from shard_wiki.space import InformationSpace
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def test_information_space_git_backed_uses_git_log(tmp_path):
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space = InformationSpace.git_backed("space-1", tmp_path / "coord")
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assert isinstance(space.log._store, GitEventStore)
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space.alias("Home", "shardA:Index")
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# Read-your-writes through the orchestrator's git-backed log.
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assert space.log.fold("space-1").resolve_alias("Home") == "shardA:Index"
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def test_default_information_space_stays_in_memory():
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space = InformationSpace("space-1")
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assert isinstance(space.log._store, InMemoryEventStore)
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def test_migrate_space_preserves_order_and_provenance(tmp_path):
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source = InMemoryEventStore()
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e0 = source.append("s", EventType.ALIAS_SET, {"alias": "Home", "target": "x:1"}, actor="ana")
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source.append("s", EventType.BINDING_MADE, {"members": ["a", "b"]}, actor="ben")
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dest = GitEventStore(tmp_path / "coord")
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n = migrate_space(source, "s", dest)
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assert n == 2
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migrated = dest.events("s")
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assert [e.seq for e in migrated] == [0, 1]
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# Provenance preserved verbatim — actor and timestamp survive the move (no restamping).
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assert migrated[0].actor == "ana"
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assert migrated[1].actor == "ben"
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assert migrated[0].timestamp == e0.timestamp
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def test_migration_yields_identical_fold(tmp_path):
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source = DecisionLog(InMemoryEventStore())
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for typ, payload in [
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(EventType.ALIAS_SET, {"alias": "Home", "target": "x:1"}),
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(EventType.BINDING_MADE, {"members": ["a", "b"]}),
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(EventType.BINDING_MADE, {"members": ["b", "c"]}),
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(EventType.ALIAS_SET, {"alias": "Home", "target": "x:2"}),
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]:
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source.append("s", typ, payload)
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dest = GitEventStore(tmp_path / "coord")
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migrate_space(source._store, "s", dest)
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after = DecisionLog(dest)
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assert after.fold("s").aliases == source.fold("s").aliases
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assert after.fold("s").equivalence_groups == source.fold("s").equivalence_groups
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def test_jsonl_round_trip_into_git(tmp_path):
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source = InMemoryEventStore()
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source.append("s", EventType.ALIAS_SET, {"alias": "Home", "target": "x:1"})
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source.append("s", EventType.PAGE_FORKED, {"source": "p", "fork": "q"})
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path = tmp_path / "log.jsonl"
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assert export_jsonl(source.events("s"), path) == 2
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dest = GitEventStore(tmp_path / "coord")
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assert import_jsonl(path, dest) == 2
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state = DecisionLog(dest).fold("s")
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assert state.resolve_alias("Home") == "x:1"
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assert state.equivalent_to("p") == frozenset({"p", "q"})
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