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from twisted.internet import defer
from twisted.trial.unittest import TestCase
from scrapy.utils.test import get_crawler
from tests.spiders import FollowAllSpider, ItemSpider, ErrorSpider
from tests.mockserver import MockServer
class TestCloseSpider(TestCase):
def setUp(self):
self.mockserver = MockServer()
self.mockserver.__enter__()
def tearDown(self):
self.mockserver.__exit__(None, None, None)
@defer.inlineCallbacks
def test_closespider_itemcount(self):
close_on = 5
crawler = get_crawler(ItemSpider, {'CLOSESPIDER_ITEMCOUNT': close_on})
yield crawler.crawl()
reason = crawler.spider.meta['close_reason']
self.assertEqual(reason, 'closespider_itemcount')
itemcount = crawler.stats.get_value('item_scraped_count')
self.assertTrue(itemcount >= close_on)
@defer.inlineCallbacks
def test_closespider_pagecount(self):
close_on = 5
crawler = get_crawler(FollowAllSpider, {'CLOSESPIDER_PAGECOUNT': close_on})
yield crawler.crawl()
reason = crawler.spider.meta['close_reason']
self.assertEqual(reason, 'closespider_pagecount')
pagecount = crawler.stats.get_value('response_received_count')
self.assertTrue(pagecount >= close_on)
@defer.inlineCallbacks
def test_closespider_errorcount(self):
close_on = 5
crawler = get_crawler(ErrorSpider, {'CLOSESPIDER_ERRORCOUNT': close_on})
yield crawler.crawl(total=1000000)
reason = crawler.spider.meta['close_reason']
self.assertEqual(reason, 'closespider_errorcount')
key = 'spider_exceptions/{name}'\
.format(name=crawler.spider.exception_cls.__name__)
errorcount = crawler.stats.get_value(key)
self.assertTrue(errorcount >= close_on)
@defer.inlineCallbacks
def test_closespider_timeout(self):
close_on = 0.1
crawler = get_crawler(FollowAllSpider, {'CLOSESPIDER_TIMEOUT': close_on})
yield crawler.crawl(total=1000000)
reason = crawler.spider.meta['close_reason']
self.assertEqual(reason, 'closespider_timeout')
stats = crawler.stats
start = stats.get_value('start_time')
stop = stats.get_value('finish_time')
diff = stop - start
total_seconds = diff.seconds + diff.microseconds
self.assertTrue(total_seconds >= close_on)
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