mirror of https://github.com/scrapy/scrapy.git
57 lines
2.5 KiB
Python
57 lines
2.5 KiB
Python
from testfixtures import LogCapture
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from twisted.internet import defer
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from scrapy.exceptions import StopDownload
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from tests.test_engine import (
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AttrsItemsSpider,
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DataClassItemsSpider,
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DictItemsSpider,
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TestSpider,
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CrawlerRun,
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EngineTest,
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)
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class HeadersReceivedCrawlerRun(CrawlerRun):
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def headers_received(self, headers, body_length, request, spider):
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super().headers_received(headers, body_length, request, spider)
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raise StopDownload(fail=False)
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class HeadersReceivedEngineTest(EngineTest):
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@defer.inlineCallbacks
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def test_crawler(self):
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for spider in (TestSpider, DictItemsSpider, AttrsItemsSpider, DataClassItemsSpider):
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if spider is None:
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continue
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self.run = HeadersReceivedCrawlerRun(spider)
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with LogCapture() as log:
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yield self.run.run()
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log.check_present(("scrapy.core.downloader.handlers.http11",
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"DEBUG",
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f"Download stopped for <GET http://localhost:{self.run.portno}/redirected> from"
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" signal handler HeadersReceivedCrawlerRun.headers_received"))
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log.check_present(("scrapy.core.downloader.handlers.http11",
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"DEBUG",
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f"Download stopped for <GET http://localhost:{self.run.portno}/> from signal"
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" handler HeadersReceivedCrawlerRun.headers_received"))
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log.check_present(("scrapy.core.downloader.handlers.http11",
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"DEBUG",
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f"Download stopped for <GET http://localhost:{self.run.portno}/numbers> from"
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" signal handler HeadersReceivedCrawlerRun.headers_received"))
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self._assert_visited_urls()
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self._assert_downloaded_responses(count=6)
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self._assert_signals_caught()
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self._assert_bytes_received()
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self._assert_headers_received()
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def _assert_bytes_received(self):
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self.assertEqual(0, len(self.run.bytes))
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def _assert_visited_urls(self):
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must_be_visited = ["/", "/redirect", "/redirected"]
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urls_visited = {rp[0].url for rp in self.run.respplug}
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urls_expected = {self.run.geturl(p) for p in must_be_visited}
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assert urls_expected <= urls_visited, f"URLs not visited: {list(urls_expected - urls_visited)}"
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