fix(lotto): Phase 3 리뷰 반영 (run-forward 백그라운드·review 404·track_record distinct·테스트 보강)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

lotto/tests/test_backtest_api.py

@@ -1,4 +1,4 @@
-import os, sys, tempfile
+import os, sys, tempfile, random as _r
 
 # _shared lives in web-backend/_shared; add the parent dir so it can be found
 sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", ".."))
@@ -13,6 +13,18 @@ def _client(monkeypatch):
     from app.main import app
     return TestClient(app), db
 
+
+def _seed_draws(db, n=40):
+    rows = []
+    _r.seed(2)
+    for i in range(1, n + 1):
+        s = sorted(_r.sample(range(1, 46), 6))
+        rows.append({"drw_no": i, "drw_date": f"2020-01-{(i % 28) + 1:02d}",
+                     "n1": s[0], "n2": s[1], "n3": s[2], "n4": s[3],
+                     "n5": s[4], "n6": s[5], "bonus": ((s[5] % 45) + 1)})
+    db.upsert_many_draws(rows)
+
+
 def test_backtest_endpoints(monkeypatch):
     client, db = _client(monkeypatch)
     r = client.get("/api/lotto/backtest/track-record")
@@ -21,3 +33,43 @@ def test_backtest_endpoints(monkeypatch):
     r2 = client.get("/api/lotto/backtest/calibration?weeks=4")
     assert r2.status_code == 200
     assert isinstance(r2.json().get("history"), list)
+
+
+def test_track_record_with_data(monkeypatch):
+    """seed 40 draws + forward run → track-record contains random_null."""
+    client, db_mod = _client(monkeypatch)
+    _seed_draws(db_mod, 40)
+    from app import backtest as bt
+    bt.run_forward_purchase(40, k=20, pool_n=500, sample_seed=5)
+    r = client.get("/api/lotto/backtest/track-record")
+    assert r.status_code == 200
+    body = r.json()
+    assert "by_strategy" in body
+    assert "random_null" in body["by_strategy"]
+
+
+def test_review_known_and_unknown(monkeypatch):
+    """Known draw with calibration → 200 + non-null winner_analysis; unknown → 404."""
+    client, db_mod = _client(monkeypatch)
+    _seed_draws(db_mod, 40)
+    from app import backtest as bt
+    bt.run_forward_purchase(40, k=20, pool_n=500, sample_seed=5)
+    bt.calibrate_winner(40, sample_m=200)
+
+    r = client.get("/api/lotto/backtest/review/40")
+    assert r.status_code == 200
+    body = r.json()
+    assert body["winner_analysis"] is not None
+    assert "score_total" in body["winner_analysis"]
+
+    r2 = client.get("/api/lotto/backtest/review/99999")
+    assert r2.status_code == 404
+
+
+def test_calibration_weeks_bounds(monkeypatch):
+    """weeks=0 and weeks=521 should be rejected with 422."""
+    client, _ = _client(monkeypatch)
+    r0 = client.get("/api/lotto/backtest/calibration?weeks=0")
+    assert r0.status_code == 422
+    r521 = client.get("/api/lotto/backtest/calibration?weeks=521")
+    assert r521.status_code == 422