mirror of https://github.com/scrapy/scrapy.git
92 lines
3.6 KiB
Python
92 lines
3.6 KiB
Python
import unittest
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from scrapy.spider import BaseSpider
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from scrapy.xlib.pydispatch import dispatcher
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from scrapy.stats.collector import StatsCollector, DummyStatsCollector
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from scrapy.stats.signals import stats_spider_opened, stats_spider_closing, \
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stats_spider_closed
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class StatsCollectorTest(unittest.TestCase):
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def setUp(self):
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self.spider = BaseSpider()
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def test_collector(self):
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stats = StatsCollector()
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self.assertEqual(stats.get_stats(), {})
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self.assertEqual(stats.get_value('anything'), None)
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self.assertEqual(stats.get_value('anything', 'default'), 'default')
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stats.set_value('test', 'value')
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self.assertEqual(stats.get_stats(), {'test': 'value'})
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stats.set_value('test2', 23)
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self.assertEqual(stats.get_stats(), {'test': 'value', 'test2': 23})
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self.assertEqual(stats.get_value('test2'), 23)
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stats.inc_value('test2')
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self.assertEqual(stats.get_value('test2'), 24)
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stats.inc_value('test2', 6)
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self.assertEqual(stats.get_value('test2'), 30)
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stats.max_value('test2', 6)
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self.assertEqual(stats.get_value('test2'), 30)
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stats.max_value('test2', 40)
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self.assertEqual(stats.get_value('test2'), 40)
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stats.max_value('test3', 1)
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self.assertEqual(stats.get_value('test3'), 1)
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stats.min_value('test2', 60)
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self.assertEqual(stats.get_value('test2'), 40)
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stats.min_value('test2', 35)
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self.assertEqual(stats.get_value('test2'), 35)
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stats.min_value('test4', 7)
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self.assertEqual(stats.get_value('test4'), 7)
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def test_dummy_collector(self):
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stats = DummyStatsCollector()
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self.assertEqual(stats.get_stats(), {})
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self.assertEqual(stats.get_value('anything'), None)
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self.assertEqual(stats.get_value('anything', 'default'), 'default')
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stats.set_value('test', 'value')
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stats.inc_value('v1')
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stats.max_value('v2', 100)
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stats.min_value('v3', 100)
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stats.open_spider('a')
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stats.set_value('test', 'value', spider=self.spider)
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self.assertEqual(stats.get_stats(), {})
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self.assertEqual(stats.get_stats('a'), {})
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def test_signals(self):
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signals_catched = set()
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def spider_opened(spider):
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assert spider is self.spider
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signals_catched.add(stats_spider_opened)
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def spider_closing(spider, reason):
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assert spider is self.spider
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assert reason == 'testing'
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signals_catched.add(stats_spider_closing)
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def spider_closed(spider, reason, spider_stats):
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assert spider is self.spider
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assert reason == 'testing'
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assert spider_stats == {'test': 1}
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signals_catched.add(stats_spider_closed)
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dispatcher.connect(spider_opened, signal=stats_spider_opened)
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dispatcher.connect(spider_closing, signal=stats_spider_closing)
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dispatcher.connect(spider_closed, signal=stats_spider_closed)
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stats = StatsCollector()
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stats.open_spider(self.spider)
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stats.set_value('test', 1, spider=self.spider)
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self.assertEqual([(self.spider, {'test': 1})], list(stats.iter_spider_stats()))
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stats.close_spider(self.spider, 'testing')
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assert stats_spider_opened in signals_catched
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assert stats_spider_closing in signals_catched
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assert stats_spider_closed in signals_catched
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dispatcher.disconnect(spider_opened, signal=stats_spider_opened)
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dispatcher.disconnect(spider_closing, signal=stats_spider_closing)
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dispatcher.disconnect(spider_closed, signal=stats_spider_closed)
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if __name__ == "__main__":
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unittest.main()
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