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# -*- coding: utf-8 -*-
import lxml.etree
from lxml import html
from searx.exceptions import SearxXPathSyntaxException, SearxEngineXPathException
from searx import utils
from tests import SearxTestCase
class TestUtils(SearxTestCase):
def test_gen_useragent(self):
self.assertIsInstance(utils.gen_useragent(), str)
self.assertIsNotNone(utils.gen_useragent())
self.assertTrue(utils.gen_useragent().startswith('Mozilla'))
def test_searx_useragent(self):
self.assertIsInstance(utils.searx_useragent(), str)
self.assertIsNotNone(utils.searx_useragent())
self.assertTrue(utils.searx_useragent().startswith('searx'))
def test_html_to_text(self):
html_str = """
<a href="/testlink" class="link_access_account">
<style>
.toto {
color: red;
}
</style>
<span class="toto">
<span>
<img src="test.jpg" />
</span>
</span>
<span class="titi">
Test text
</span>
<script>value='dummy';</script>
</a>
"""
self.assertIsInstance(utils.html_to_text(html_str), str)
self.assertIsNotNone(utils.html_to_text(html_str))
self.assertEqual(utils.html_to_text(html_str), "Test text")
def test_extract_text(self):
html_str = """
<a href="/testlink" class="link_access_account">
<span class="toto">
<span>
<img src="test.jpg" />
</span>
</span>
<span class="titi">
Test text
</span>
</a>
"""
dom = html.fromstring(html_str)
self.assertEqual(utils.extract_text(dom), 'Test text')
self.assertEqual(utils.extract_text(dom.xpath('//span')), 'Test text')
self.assertEqual(utils.extract_text(dom.xpath('//span/text()')), 'Test text')
self.assertEqual(utils.extract_text(dom.xpath('count(//span)')), '3.0')
self.assertEqual(utils.extract_text(dom.xpath('boolean(//span)')), 'True')
self.assertEqual(utils.extract_text(dom.xpath('//img/@src')), 'test.jpg')
self.assertEqual(utils.extract_text(dom.xpath('//unexistingtag')), '')
self.assertEqual(utils.extract_text(None, allow_none=True), None)
with self.assertRaises(ValueError):
utils.extract_text(None)
with self.assertRaises(ValueError):
utils.extract_text({})
def test_extract_url(self):
def f(html_str, search_url):
return utils.extract_url(html.fromstring(html_str), search_url)
self.assertEqual(f('<span id="42">https://example.com</span>', 'http://example.com/'), 'https://example.com/')
self.assertEqual(f('https://example.com', 'http://example.com/'), 'https://example.com/')
self.assertEqual(f('//example.com', 'http://example.com/'), 'http://example.com/')
self.assertEqual(f('//example.com', 'https://example.com/'), 'https://example.com/')
self.assertEqual(f('/path?a=1', 'https://example.com'), 'https://example.com/path?a=1')
with self.assertRaises(lxml.etree.ParserError):
f('', 'https://example.com')
with self.assertRaises(Exception):
utils.extract_url([], 'https://example.com')
def test_html_to_text_invalid(self):
html = '<p><b>Lorem ipsum</i>dolor sit amet</p>'
self.assertEqual(utils.html_to_text(html), "Lorem ipsum")
def test_match_language(self):
self.assertEqual(utils.match_language('es', ['es']), 'es')
self.assertEqual(utils.match_language('es', [], fallback='fallback'), 'fallback')
self.assertEqual(utils.match_language('ja', ['jp'], {'ja': 'jp'}), 'jp')
# handle script tags
self.assertEqual(utils.match_language('zh-CN', ['zh-Hans-CN', 'zh-Hant-TW']), 'zh-Hans-CN')
self.assertEqual(utils.match_language('zh-TW', ['zh-Hans-CN', 'zh-Hant-TW']), 'zh-Hant-TW')
self.assertEqual(utils.match_language('zh-Hans-CN', ['zh-CN', 'zh-TW']), 'zh-CN')
self.assertEqual(utils.match_language('zh-Hant-TW', ['zh-CN', 'zh-TW']), 'zh-TW')
self.assertEqual(utils.match_language('zh-Hans', ['zh-CN', 'zh-TW', 'zh-HK']), 'zh-CN')
self.assertEqual(utils.match_language('zh-Hant', ['zh-CN', 'zh-TW', 'zh-HK']), 'zh-TW')
aliases = {'en-GB': 'en-UK', 'he': 'iw'}
# guess country
self.assertEqual(utils.match_language('de-DE', ['de']), 'de')
self.assertEqual(utils.match_language('de', ['de-DE']), 'de-DE')
self.assertEqual(utils.match_language('es-CO', ['es-AR', 'es-ES', 'es-MX']), 'es-ES')
self.assertEqual(utils.match_language('es-CO', ['es-MX']), 'es-MX')
self.assertEqual(utils.match_language('en-UK', ['en-AU', 'en-GB', 'en-US']), 'en-GB')
self.assertEqual(utils.match_language('en-GB', ['en-AU', 'en-UK', 'en-US'], aliases), 'en-UK')
# language aliases
self.assertEqual(utils.match_language('iw', ['he']), 'he')
self.assertEqual(utils.match_language('he', ['iw'], aliases), 'iw')
self.assertEqual(utils.match_language('iw-IL', ['he']), 'he')
self.assertEqual(utils.match_language('he-IL', ['iw'], aliases), 'iw')
self.assertEqual(utils.match_language('iw', ['he-IL']), 'he-IL')
self.assertEqual(utils.match_language('he', ['iw-IL'], aliases), 'iw-IL')
self.assertEqual(utils.match_language('iw-IL', ['he-IL']), 'he-IL')
self.assertEqual(utils.match_language('he-IL', ['iw-IL'], aliases), 'iw-IL')
def test_ecma_unscape(self):
self.assertEqual(utils.ecma_unescape('text%20with%20space'), 'text with space')
self.assertEqual(utils.ecma_unescape('text using %xx: %F3'), 'text using %xx: ó')
self.assertEqual(utils.ecma_unescape('text using %u: %u5409, %u4E16%u754c'), 'text using %u: 吉, 世界')
class TestHTMLTextExtractor(SearxTestCase):
def setUp(self):
self.html_text_extractor = utils._HTMLTextExtractor()
def test__init__(self):
self.assertEqual(self.html_text_extractor.result, [])
def test_handle_charref(self):
self.html_text_extractor.handle_charref('xF')
self.assertIn('\x0f', self.html_text_extractor.result)
self.html_text_extractor.handle_charref('XF')
self.assertIn('\x0f', self.html_text_extractor.result)
self.html_text_extractor.handle_charref('97')
self.assertIn('a', self.html_text_extractor.result)
def test_handle_entityref(self):
entity = 'test'
self.html_text_extractor.handle_entityref(entity)
self.assertIn(entity, self.html_text_extractor.result)
def test_invalid_html(self):
text = '<p><b>Lorem ipsum</i>dolor sit amet</p>'
with self.assertRaises(utils._HTMLTextExtractorException):
self.html_text_extractor.feed(text)
class TestXPathUtils(SearxTestCase):
TEST_DOC = """<ul>
<li>Text in <b>bold</b> and <i>italic</i> </li>
<li>Another <b>text</b> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs="></li>
</ul>"""
def test_get_xpath_cache(self):
xp1 = utils.get_xpath('//a')
xp2 = utils.get_xpath('//div')
xp3 = utils.get_xpath('//a')
self.assertEqual(id(xp1), id(xp3))
self.assertNotEqual(id(xp1), id(xp2))
def test_get_xpath_type(self):
utils.get_xpath(lxml.etree.XPath('//a'))
with self.assertRaises(TypeError):
utils.get_xpath([])
def test_get_xpath_invalid(self):
invalid_xpath = '//a[0].text'
with self.assertRaises(SearxXPathSyntaxException) as context:
utils.get_xpath(invalid_xpath)
self.assertEqual(context.exception.message, 'Invalid expression')
self.assertEqual(context.exception.xpath_str, invalid_xpath)
def test_eval_xpath_unregistered_function(self):
doc = html.fromstring(TestXPathUtils.TEST_DOC)
invalid_function_xpath = 'int(//a)'
with self.assertRaises(SearxEngineXPathException) as context:
utils.eval_xpath(doc, invalid_function_xpath)
self.assertEqual(context.exception.message, 'Unregistered function')
self.assertEqual(context.exception.xpath_str, invalid_function_xpath)
def test_eval_xpath(self):
doc = html.fromstring(TestXPathUtils.TEST_DOC)
self.assertEqual(utils.eval_xpath(doc, '//p'), [])
self.assertEqual(utils.eval_xpath(doc, '//i/text()'), ['italic'])
self.assertEqual(utils.eval_xpath(doc, 'count(//i)'), 1.0)
def test_eval_xpath_list(self):
doc = html.fromstring(TestXPathUtils.TEST_DOC)
# check a not empty list
self.assertEqual(utils.eval_xpath_list(doc, '//i/text()'), ['italic'])
# check min_len parameter
with self.assertRaises(SearxEngineXPathException) as context:
utils.eval_xpath_list(doc, '//p', min_len=1)
self.assertEqual(context.exception.message, 'len(xpath_str) < 1')
self.assertEqual(context.exception.xpath_str, '//p')
def test_eval_xpath_getindex(self):
doc = html.fromstring(TestXPathUtils.TEST_DOC)
# check index 0
self.assertEqual(utils.eval_xpath_getindex(doc, '//i/text()', 0), 'italic')
# default is 'something'
self.assertEqual(utils.eval_xpath_getindex(doc, '//i/text()', 1, default='something'), 'something')
# default is None
self.assertEqual(utils.eval_xpath_getindex(doc, '//i/text()', 1, default=None), None)
# index not found
with self.assertRaises(SearxEngineXPathException) as context:
utils.eval_xpath_getindex(doc, '//i/text()', 1)
self.assertEqual(context.exception.message, 'index 1 not found')
# not a list
with self.assertRaises(SearxEngineXPathException) as context:
utils.eval_xpath_getindex(doc, 'count(//i)', 1)
self.assertEqual(context.exception.message, 'the result is not a list')
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