import pytest
from backtest.config import BacktestConfig
from backtest.runner import BacktestRunner
from strategies.base import SmaCross


def test_backtest_smoke():
    """Smoke test: run a minimal backtest and check results exist."""
    config = BacktestConfig(
        symbols=["sh600000"],
        start_date="2024-01-01",
        end_date="2024-03-31",
        initial_cash=100_000,
    )
    runner = BacktestRunner(config)
    results = runner.run(SmaCross)
    assert results is not None
    assert len(results) == 1
    # Check analyzers exist
    sharpe = results[0].analyzers.sharpe.get_analysis()
    assert "sharperatio" in sharpe