"""骨架冒烟测试：包能导入，且核心包不拉起 web 依赖（AGENTS.md §5 硬规则）。"""

from __future__ import annotations

import subprocess
import sys


def test_package_imports() -> None:
    import adapter_python_pg

    assert adapter_python_pg.__version__ == "0.1.0"


def test_core_import_does_not_pull_fastapi() -> None:
    """在干净的解释器里 import 核心包，sys.modules 不应出现 fastapi / uvicorn。"""
    code = (
        "import sys, adapter_python_pg;"
        "assert 'fastapi' not in sys.modules, 'core imported fastapi';"
        "assert 'uvicorn' not in sys.modules, 'core imported uvicorn';"
        "print('ok')"
    )
    result = subprocess.run(
        [sys.executable, "-c", code],
        capture_output=True,
        text=True,
    )
    assert result.returncode == 0, result.stderr
    assert result.stdout.strip() == "ok"


def test_unknown_attribute_raises() -> None:
    import pytest

    import adapter_python_pg

    with pytest.raises(AttributeError):
        _ = adapter_python_pg.nonexistent_attribute