fix(music-lab): market API 타입 강화·ANTHROPIC_API_KEY call-time·HTTP 레이어 테스트 추가

music-lab/tests/test_market.py

@@ -35,3 +35,65 @@ def test_ingest_idempotent(tmp_db):
 
     reports = get_trend_reports()
     assert len([r for r in reports if r["report_date"] == "2026-05-01"]) == 1
+
+
+from fastapi.testclient import TestClient
+
+
+def test_market_endpoints_empty(tmp_db):
+    """Empty DB: /report/latest returns 404, /suggest returns []."""
+    from app.db import init_db
+    init_db()
+    from app.main import app
+    client = TestClient(app)
+
+    resp = client.get("/api/music/market/report/latest")
+    assert resp.status_code == 404
+
+    resp = client.get("/api/music/market/suggest")
+    assert resp.status_code == 200
+    assert resp.json()["suggestions"] == []
+
+
+def test_market_ingest_endpoint(tmp_db):
+    """POST /ingest returns ok, GET /report/latest returns report, GET /trends returns data."""
+    from app.db import init_db
+    init_db()
+    from app.main import app
+    client = TestClient(app)
+
+    payload = {
+        "trends": [
+            {"source": "youtube", "country": "BR", "genre": "lo-fi",
+             "keyword": "lofi", "score": 0.9, "rank": 1, "metadata": {}},
+        ],
+        "report_date": "2026-05-01",
+    }
+    resp = client.post("/api/music/market/ingest", json=payload)
+    assert resp.status_code == 200
+    data = resp.json()
+    assert data["ok"] is True
+    assert data["trends_saved"] == 1
+    assert data["report_date"] == "2026-05-01"
+
+    resp = client.get("/api/music/market/report/latest")
+    assert resp.status_code == 200
+    assert resp.json()["report_date"] == "2026-05-01"
+
+    resp = client.get("/api/music/market/trends")
+    assert resp.status_code == 200
+    assert len(resp.json()["trends"]) == 1
+
+
+def test_ingest_empty_trends(tmp_db):
+    """Empty trends list ingests without error and returns a well-formed report."""
+    from app.db import init_db
+    from app.market import ingest_trends
+    init_db()
+
+    report = ingest_trends([], "2026-05-02")
+    assert report["report_date"] == "2026-05-02"
+    assert report["top_genres"] == []
+    assert report["recommended_styles"] == []
+    assert isinstance(report["insights"], str)
+    assert len(report["insights"]) > 0