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54 lines
2.2 KiB
Python
54 lines
2.2 KiB
Python
from unittest import TestCase
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from scrapy.spiders import Spider
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from scrapy.http import Request
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from scrapy.downloadermiddlewares.useragent import UserAgentMiddleware
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from scrapy.utils.test import get_crawler
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class UserAgentMiddlewareTest(TestCase):
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def get_spider_and_mw(self, default_useragent):
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crawler = get_crawler(Spider, {'USER_AGENT': default_useragent})
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spider = crawler._create_spider('foo')
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return spider, UserAgentMiddleware.from_crawler(crawler)
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def test_default_agent(self):
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spider, mw = self.get_spider_and_mw('default_useragent')
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req = Request('http://scrapytest.org/')
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assert mw.process_request(req, spider) is None
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self.assertEquals(req.headers['User-Agent'], 'default_useragent')
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def test_remove_agent(self):
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# settings UESR_AGENT to None should remove the user agent
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spider, mw = self.get_spider_and_mw('default_useragent')
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spider.user_agent = None
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mw.spider_opened(spider)
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req = Request('http://scrapytest.org/')
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assert mw.process_request(req, spider) is None
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assert req.headers.get('User-Agent') is None
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def test_spider_agent(self):
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spider, mw = self.get_spider_and_mw('default_useragent')
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spider.user_agent = 'spider_useragent'
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mw.spider_opened(spider)
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req = Request('http://scrapytest.org/')
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assert mw.process_request(req, spider) is None
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self.assertEquals(req.headers['User-Agent'], 'spider_useragent')
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def test_header_agent(self):
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spider, mw = self.get_spider_and_mw('default_useragent')
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spider.user_agent = 'spider_useragent'
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mw.spider_opened(spider)
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req = Request('http://scrapytest.org/', headers={'User-Agent': 'header_useragent'})
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assert mw.process_request(req, spider) is None
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self.assertEquals(req.headers['User-Agent'], 'header_useragent')
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def test_no_agent(self):
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spider, mw = self.get_spider_and_mw(None)
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spider.user_agent = None
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mw.spider_opened(spider)
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req = Request('http://scrapytest.org/')
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assert mw.process_request(req, spider) is None
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assert 'User-Agent' not in req.headers
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