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phase-memory/tests/test_lifecycle.py

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Python

from datetime import datetime, timezone
from phase_memory.lifecycle import plan_compaction, plan_phase_transition, plan_refresh, plan_retention
from phase_memory.models import LifecycleActionKind, LifecycleState, MemoryNode, MemoryPhase
def test_phase_transition_to_stabilized_requires_review() -> None:
node = MemoryNode("event.restart", "episode", "Useful restart trace", phase=MemoryPhase.FLUID)
action = plan_phase_transition(node, MemoryPhase.STABILIZED)
assert action.action == LifecycleActionKind.TRANSITION_PHASE
assert action.requires_review
assert action.to_state == LifecycleState.REVIEW_NEEDED
assert action.metadata["to_phase"] == "stabilized"
def test_retention_plans_stale_and_delete_requested_without_physical_delete() -> None:
now = datetime(2026, 5, 18, tzinfo=timezone.utc)
stale = MemoryNode(
"stale",
"episode",
freshness={"updated_at": "2026-05-01T00:00:00+00:00"},
)
old = MemoryNode(
"old",
"episode",
freshness={"updated_at": "2026-04-01T00:00:00+00:00"},
)
actions = plan_retention([stale, old], stale_after_days=7, delete_after_days=30, now=now)
by_target = {action.target_id: action for action in actions}
assert by_target["stale"].action == LifecycleActionKind.MARK_STALE
assert by_target["old"].action == LifecycleActionKind.REQUEST_DELETE
assert by_target["old"].metadata["physical_delete"] is False
def test_compaction_and_refresh_are_reviewable_plans() -> None:
node = MemoryNode("artifact.profile", "artifact", "Profile text", freshness={"source_digest": "old"})
compact = plan_compaction([node])
refresh = plan_refresh([node], source_digest_by_node_id={"artifact.profile": "new"})[0]
assert compact.action == LifecycleActionKind.COMPACT
assert compact.requires_review
assert refresh.action == LifecycleActionKind.REFRESH
assert refresh.requires_review
assert refresh.metadata["proposed_digest"] == "new"