Files
web-scraper/test_helpers.py

87 lines
2.8 KiB
Python

#!/usr/bin/env python
import unittest
from unittest import mock
from utils.helpers import AsyncCrawler, RobotsTxt, standardise_url
class TestAsyncCrawler(unittest.TestCase):
base_url = 'http://eu.httpbin.org'
concurrency = 10
testcrawler = AsyncCrawler(baseurl=base_url, concurrency=concurrency)
expected_urls = ['http://eu.httpbin.org/b/', 'http://eu.httpbin.org/c/']
crawled = set()
crawled.add('https://eu.httpbin.org/a/')
@mock.patch('utils.helpers.AsyncCrawler.validate_url', response=True)
def test_find_all_urls(self, validate_url):
with open('test/files/find_all_urls.html', 'r') as f:
source = f.read()
urls = self.testcrawler.find_all_urls(source=source)
self.assertEqual(urls, self.expected_urls)
class TestRobots(unittest.TestCase):
base_url = 'http://eu.httpbin.org'
no_robots = 'https://www.simonweald.com'
test_paths = (('/', True), ('/deny', False))
robots = RobotsTxt(base_url=base_url)
norobots = RobotsTxt(base_url=no_robots)
def test_robots_txt_deny(self):
'''
Asserts result is True or False.
'''
for path, allowed in self.test_paths:
result = self.robots.check(url=path)
self.assertIs(result, allowed)
def test_no_robots_txt(self):
'''
Ensure we can crawl if robots.txt isn't present.
'''
result = self.norobots.check(url='/')
self.assertTrue(result)
class TestUrls(unittest.TestCase):
base_url = 'http://eu.httpbin.org'
base_url_list = (('eu.httpbin.org', 'http://eu.httpbin.org'),
('http://eu.httpbin.org/', 'http://eu.httpbin.org'),
('https://eu.httpbin.org', 'https://eu.httpbin.org'))
urls_to_clean = (('http://eu.httpbin.org', 'http://eu.httpbin.org'),
('http://eu.httpbin.org/some/path/', 'http://eu.httpbin.org/some/path/'),
('http://eu.httpbin.org/index.html','http://eu.httpbin.org/index.html'),
('http://eu.httpbin.org/index.html?foo=bar', 'http://eu.httpbin.org/index.html'),
('http://eu.httpbin.org/index.html#anchor', 'http://eu.httpbin.org/index.html'))
def test_standardise_base_url(self):
'''
Tests whether a base URL can be standardised to the format
proto://[sub].domain.tld.
'''
for url, target in self.base_url_list:
result = standardise_url(url)
self.assertEqual(result, target)
def test_standardise_url(self):
'''
Ensure that fragments/anchors etc are stripped.
'''
for url, target in self.urls_to_clean:
result = standardise_url(url, base_url=self.base_url)
self.assertEqual(result, target)
if __name__ == '__main__':
unittest.main()