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from unittest import TestCase
from scrapy.http import Response, Request
from scrapy.spider import BaseSpider
from scrapy.contrib.spidermiddleware.httperror import HttpErrorMiddleware, HttpError
class TestHttpErrorMiddleware(TestCase):
def setUp(self):
self.spider = BaseSpider('foo')
self.mw = HttpErrorMiddleware()
self.req = Request('http://scrapytest.org')
self.res200 = Response('http://scrapytest.org', status=200)
self.res200.request = self.req
self.res404 = Response('http://scrapytest.org', status=404)
self.res404.request = self.req
def test_process_spider_input(self):
self.assertEquals(None,
self.mw.process_spider_input(self.res200, self.spider))
self.assertRaises(HttpError,
self.mw.process_spider_input, self.res404, self.spider)
def test_process_spider_exception(self):
self.assertEquals([],
self.mw.process_spider_exception(self.res404, \
HttpError(self.res404), self.spider))
self.assertEquals(None,
self.mw.process_spider_exception(self.res404, \
Exception(), self.spider))
def test_handle_httpstatus_list(self):
res = self.res404.copy()
res.request = Request('http://scrapytest.org',
meta={'handle_httpstatus_list': [404]})
self.assertEquals(None,
self.mw.process_spider_input(res, self.spider))
self.spider.handle_httpstatus_list = [404]
self.assertEquals(None,
self.mw.process_spider_input(self.res404, self.spider))
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