mirror of https://github.com/scrapy/scrapy.git
38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
from __future__ import annotations
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from scrapy.downloadermiddlewares.useragent import UserAgentMiddleware
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from scrapy.http import Request
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from scrapy.spiders import Spider
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from scrapy.utils.test import get_crawler
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def get_spider_and_mw(
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default_useragent: str | None,
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) -> tuple[Spider, UserAgentMiddleware]:
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crawler = get_crawler(Spider, {"USER_AGENT": default_useragent})
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spider = crawler._create_spider("foo")
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return spider, UserAgentMiddleware.from_crawler(crawler)
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def test_default_agent():
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_, mw = get_spider_and_mw("default_useragent")
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req = Request("http://scrapytest.org/")
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assert mw.process_request(req) is None
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assert req.headers["User-Agent"] == b"default_useragent"
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def test_header_agent():
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spider, mw = get_spider_and_mw("default_useragent")
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mw.spider_opened(spider)
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req = Request("http://scrapytest.org/", headers={"User-Agent": "header_useragent"})
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assert mw.process_request(req) is None
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assert req.headers["User-Agent"] == b"header_useragent"
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def test_no_agent():
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spider, mw = get_spider_and_mw(None)
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mw.spider_opened(spider)
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req = Request("http://scrapytest.org/")
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assert mw.process_request(req) is None
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assert "User-Agent" not in req.headers
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