feat(stock-lab): screener 스키마 7테이블 + 디폴트 설정 시드

stock-lab/app/test_screener_schema.py

@@ -0,0 +1,37 @@
+import sqlite3
+from app.screener.schema import ensure_screener_schema
+
+
+def test_creates_all_tables(tmp_path):
+    db_path = tmp_path / "test.db"
+    conn = sqlite3.connect(db_path)
+    ensure_screener_schema(conn)
+
+    tables = {r[0] for r in conn.execute(
+        "SELECT name FROM sqlite_master WHERE type='table'"
+    ).fetchall()}
+
+    expected = {
+        "krx_master", "krx_daily_prices", "krx_flow",
+        "screener_settings", "screener_runs", "screener_results",
+    }
+    assert expected.issubset(tables)
+
+
+def test_settings_seeded_with_singleton_row(tmp_path):
+    db_path = tmp_path / "test.db"
+    conn = sqlite3.connect(db_path)
+    ensure_screener_schema(conn)
+
+    rows = conn.execute("SELECT id FROM screener_settings").fetchall()
+    assert rows == [(1,)]
+
+
+def test_idempotent(tmp_path):
+    db_path = tmp_path / "test.db"
+    conn = sqlite3.connect(db_path)
+    ensure_screener_schema(conn)
+    ensure_screener_schema(conn)        # 두 번 호출해도 에러 없어야 함
+
+    rows = conn.execute("SELECT count(*) FROM screener_settings").fetchall()
+    assert rows == [(1,)]