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import os
from datetime import datetime
import shutil
from twisted.trial import unittest
from scrapy.extensions.spiderstate import SpiderState
from scrapy.spiders import Spider
from scrapy.exceptions import NotConfigured
from scrapy.utils.test import get_crawler
class SpiderStateTest(unittest.TestCase):
def test_store_load(self):
jobdir = self.mktemp()
os.mkdir(jobdir)
try:
spider = Spider(name='default')
dt = datetime.now()
ss = SpiderState(jobdir)
ss.spider_opened(spider)
spider.state['one'] = 1
spider.state['dt'] = dt
ss.spider_closed(spider)
spider2 = Spider(name='default')
ss2 = SpiderState(jobdir)
ss2.spider_opened(spider2)
self.assertEqual(spider.state, {'one': 1, 'dt': dt})
ss2.spider_closed(spider2)
finally:
shutil.rmtree(jobdir)
def test_state_attribute(self):
# state attribute must be present if jobdir is not set, to provide a
# consistent interface
spider = Spider(name='default')
ss = SpiderState()
ss.spider_opened(spider)
self.assertEqual(spider.state, {})
ss.spider_closed(spider)
def test_not_configured(self):
crawler = get_crawler(Spider)
self.assertRaises(NotConfigured, SpiderState.from_crawler, crawler)
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