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from unittest import TestCase
from scrapy.http import Response, Request
from scrapy.spiders import Spider
from scrapy.spidermiddlewares.referer import RefererMiddleware
class TestRefererMiddleware(TestCase):
def setUp(self):
self.spider = Spider('foo')
self.mw = RefererMiddleware()
def test_process_spider_output(self):
res = Response('http://scrapytest.org')
reqs = [Request('http://scrapytest.org/')]
out = list(self.mw.process_spider_output(res, reqs, self.spider))
self.assertEquals(out[0].headers.get('Referer'),
'http://scrapytest.org')
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