import sqlite3
import tempfile
import pytest
from app.db.store import get_connection, run_migrations


def test_migrations_create_tables():
    with tempfile.NamedTemporaryFile(suffix=".db") as f:
        conn = get_connection(f.name)
        run_migrations(conn)
        tables = {r[0] for r in conn.execute(
            "SELECT name FROM sqlite_master WHERE type='table'"
        )}
        assert "chains" in tables
        assert "nodes" in tables


def test_foreign_keys_enforced():
    with tempfile.NamedTemporaryFile(suffix=".db") as f:
        conn = get_connection(f.name)
        run_migrations(conn)
        with pytest.raises(sqlite3.IntegrityError):
            conn.execute(
                "INSERT INTO nodes (id, chain_id, status, created_at) "
                "VALUES ('n1', 'nonexistent', 'pending', 0.0)"
            )
            conn.commit()