"""持久化任务需要完整的幂等和重试证据，不能只有运行中的内存对象。"""

from app.models import TPlusSyncBatch


def test_批次记录范围重试幂等与报告():
    table = TPlusSyncBatch.__table__
    assert {
        "entity_types_json",
        "skipped_record_count",
        "parent_batch_no",
        "request_key",
        "requested_by",
        "audit_result_json",
    } <= set(table.c.keys())
    assert table.c.started_at.nullable is True


def test_请求键由数据库唯一约束保护():
    constraints = TPlusSyncBatch.__table__.constraints
    assert any(c.name == "uk_tplus_sync_batches_request_key" for c in constraints)