fix(v2-ingestion): harden LBA/BCL snapshot contract for public data

tests/test_bcl_extractor.py

@@ -51,6 +51,37 @@ def test_bcl_extractor_normalizes_fixture_payload(tmp_path, settings):
     assert row["three_pt_pct"] == 37.2
 
 
+@pytest.mark.django_db
+def test_bcl_extractor_accepts_partial_public_player_bio_fields(tmp_path, settings):
+    settings.EXTRACTOR_BCL_STATS_URL = "https://www.championsleague.basketball/public/stats.json"
+    settings.EXTRACTOR_BCL_SEASON_LABEL = "2025-2026"
+    settings.EXTRACTOR_BCL_COMPETITION_EXTERNAL_ID = "bcl"
+    settings.EXTRACTOR_BCL_COMPETITION_NAME = "Basketball Champions League"
+
+    fixture_payload = _load_fixture("bcl/bcl_players_stats_partial_public.json")
+
+    class FakeClient:
+        def get_json(self, *_args, **_kwargs):
+            return fixture_payload
+
+    extractor = BCLSnapshotExtractor(http_client=FakeClient())
+    output_path = tmp_path / "bcl-partial.json"
+    result = extractor.run(output_path=output_path, snapshot_date=date(2026, 3, 13))
+
+    assert result.records_count == 1
+    payload = json.loads(output_path.read_text(encoding="utf-8"))
+    row = payload["records"][0]
+    assert row["full_name"] == "Alex Novak"
+    assert row["first_name"] is None
+    assert row["last_name"] is None
+    assert row["birth_date"] is None
+    assert row["nationality"] is None
+    assert row["height_cm"] is None
+    assert row["weight_kg"] is None
+    assert row["position"] is None
+    assert row["games_played"] == 10
+
+
 @pytest.mark.django_db
 def test_bcl_extractor_registry_selection(settings):
     settings.EXTRACTOR_BCL_STATS_URL = "https://www.championsleague.basketball/public/stats.json"