"""Memory evidence 组装与检索契约（纯函数 / 无 DB）。"""

from app.features.memory.evidence import (
    EMPTY_EVIDENCE_BUNDLE,
    _facts_to_dicts,
    _stories_to_dicts,
    _timeline_to_dicts,
)
from app.features.memory.schemas import EvidenceBundle


def test_empty_evidence_bundle_keys() -> None:
    assert set(EMPTY_EVIDENCE_BUNDLE.keys()) == {
        "relevant_chunks",
        "relevant_summaries",
        "relevant_facts",
        "timeline_hints",
        "relevant_stories",
    }


def test_evidence_bundle_model_accepts_dict() -> None:
    b = EvidenceBundle.model_validate(EMPTY_EVIDENCE_BUNDLE)
    assert b.relevant_chunks == []


def test_format_helpers_empty() -> None:
    assert _facts_to_dicts([]) == []
    assert _timeline_to_dicts([]) == []
    assert _stories_to_dicts([]) == []