"""
数据库连接集成测试。
需要真实数据库连接，默认被跳过。
运行方式：pytest tests/integration/ -v
"""

import pytest
from paste.db.basetable import BaseTable
from paste.db.baseadapter import BaseAdapter


@pytest.mark.integration
class TestDbConnection:
    """数据库连接基础测试"""

    @pytest.mark.skip(reason="需要真实数据库连接")
    @pytest.mark.asyncio
    async def test_ping_database(self):
        """测试数据库连通性"""
        result = BaseAdapter.ping()
        assert result is True

    @pytest.mark.skip(reason="需要真实数据库连接")
    @pytest.mark.asyncio
    async def test_tables_in_db(self):
        """测试获取表列表"""
        tables = await BaseTable.tables_in_db()
        assert isinstance(tables, list)
        # 验证返回的表名称都是字符串
        for table in tables:
            assert isinstance(table, str)

    @pytest.mark.skip(reason="需要真实数据库连接")
    @pytest.mark.asyncio
    async def test_is_table_exist(self):
        """测试表存在性判断"""
        # 测试存在的表（information_schema.tables 必然存在）
        exists = await BaseTable.is_table_exist('information_schema')
        assert isinstance(exists, bool)