"""测试 HTML 下载器模块。"""

import pytest
from unittest.mock import patch, MagicMock

from readers.html.downloader import download_html
from readers.html.downloader import pyppeteer, selenium, httpx, urllib


class TestDownloadHtml:
    """测试 download_html 统一入口函数。"""

    def test_download_html_module_importable(self):
        """测试 download_html 函数可以正常导入和调用。"""
        # 只要不抛异常就可以
        assert callable(download_html)

    def test_downloaders_available(self):
        """测试各下载器模块可用。"""
        assert callable(pyppeteer.download)
        assert callable(selenium.download)
        assert callable(httpx.download)
        assert callable(urllib.download)


class TestIndividualDownloaders:
    """测试单个下载器模块。"""

    def test_pyppeteer_download_callable(self):
        """测试 pyppeteer.download 可以调用。"""
        assert callable(pyppeteer.download)

    def test_selenium_download_callable(self):
        """测试 selenium.download 可以调用。"""
        assert callable(selenium.download)

    def test_httpx_download_callable(self):
        """测试 httpx.download 可以调用。"""
        assert callable(httpx.download)

    def test_urllib_download_callable(self):
        """测试 urllib.download 可以调用（标准库）。"""
        assert callable(urllib.download)