mirror of https://github.com/scrapy/scrapy.git
48 lines
1.8 KiB
Python
48 lines
1.8 KiB
Python
from unittest import TestCase
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from scrapy.conf import settings
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from scrapy.contrib.downloadermiddleware.defaultheaders import DefaultHeadersMiddleware
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from scrapy.http import Request
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from scrapy.spider import BaseSpider
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from scrapy.utils.test import get_crawler
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class TestDefaultHeadersMiddleware(TestCase):
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def get_defaults_spider_mw(self):
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crawler = get_crawler()
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spider = BaseSpider('foo')
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spider.set_crawler(crawler)
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defaults = dict([(k, [v]) for k, v in \
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crawler.settings.get('DEFAULT_REQUEST_HEADERS').iteritems()])
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return defaults, spider, DefaultHeadersMiddleware()
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def test_process_request(self):
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defaults, spider, mw = self.get_defaults_spider_mw()
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req = Request('http://www.scrapytest.org')
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mw.process_request(req, spider)
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self.assertEquals(req.headers, defaults)
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def test_spider_default_request_headers(self):
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defaults, spider, mw = self.get_defaults_spider_mw()
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spider_headers = {'Unexistant-Header': ['value']}
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# override one of the global default headers by spider
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if defaults:
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k = set(defaults).pop()
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spider_headers[k] = ['__newvalue__']
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spider.DEFAULT_REQUEST_HEADERS = spider_headers
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req = Request('http://www.scrapytest.org')
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mw.process_request(req, spider)
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self.assertEquals(req.headers, dict(spider_headers))
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def test_update_headers(self):
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defaults, spider, mw = self.get_defaults_spider_mw()
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headers = {'Accept-Language': ['es'], 'Test-Header': ['test']}
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req = Request('http://www.scrapytest.org', headers=headers)
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self.assertEquals(req.headers, headers)
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mw.process_request(req, spider)
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defaults.update(headers)
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self.assertEquals(req.headers, defaults)
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