from pathlib import Path

from fao.ingest.adapters.demo_json import DemoJsonAdapter


def test_demo_json_builds_demo_source(tmp_path: Path) -> None:
    sample = tmp_path / "x.json"
    sample.write_text(
        '{"schema_version":1,"items":[{"variety_code":"x","variety_name":"X","biz_date":"2026-04-23","avg_price_yuan_per_kg":1.2,"market_code":"M","unit":"yuan_per_kg"}]}',
        encoding="utf-8",
    )
    r = DemoJsonAdapter(sample_path=sample).run()
    assert r.source_code == "DEMO"
    assert r.adapter_name == "demo_json"
    assert len(r.content_fingerprint) == 64
    assert r.payload["kind"] == "price_quote_batch"
    assert r.payload["items"][0]["variety_code"] == "x"