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import unittest
from scrapy.downloadermiddlewares.downloadtimeout import DownloadTimeoutMiddleware
from scrapy.spiders import Spider
from scrapy.http import Request
from scrapy.utils.test import get_crawler
class DownloadTimeoutMiddlewareTest(unittest.TestCase):
def get_request_spider_mw(self, settings=None):
crawler = get_crawler(Spider, settings)
spider = crawler._create_spider('foo')
request = Request('http://scrapytest.org/')
return request, spider, DownloadTimeoutMiddleware.from_crawler(crawler)
def test_default_download_timeout(self):
req, spider, mw = self.get_request_spider_mw()
mw.spider_opened(spider)
assert mw.process_request(req, spider) is None
self.assertEqual(req.meta.get('download_timeout'), 180)
def test_string_download_timeout(self):
req, spider, mw = self.get_request_spider_mw({'DOWNLOAD_TIMEOUT': '20.1'})
mw.spider_opened(spider)
assert mw.process_request(req, spider) is None
self.assertEqual(req.meta.get('download_timeout'), 20.1)
def test_spider_has_download_timeout(self):
req, spider, mw = self.get_request_spider_mw()
spider.download_timeout = 2
mw.spider_opened(spider)
assert mw.process_request(req, spider) is None
self.assertEqual(req.meta.get('download_timeout'), 2)
def test_request_has_download_timeout(self):
req, spider, mw = self.get_request_spider_mw()
spider.download_timeout = 2
mw.spider_opened(spider)
req.meta['download_timeout'] = 1
assert mw.process_request(req, spider) is None
self.assertEqual(req.meta.get('download_timeout'), 1)
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