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36 lines
1.4 KiB
Python
36 lines
1.4 KiB
Python
from unittest import TestCase
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from scrapy.downloadermiddlewares.defaultheaders import DefaultHeadersMiddleware
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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.python import to_bytes
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from scrapy.utils.test import get_crawler
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class TestDefaultHeadersMiddleware(TestCase):
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def get_defaults_spider_mw(self):
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crawler = get_crawler(Spider)
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spider = crawler._create_spider("foo")
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defaults = {
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to_bytes(k): [to_bytes(v)]
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for k, v in crawler.settings.get("DEFAULT_REQUEST_HEADERS").items()
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}
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return defaults, spider, DefaultHeadersMiddleware.from_crawler(crawler)
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def test_process_request(self):
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defaults, spider, mw = self.get_defaults_spider_mw()
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req = Request("http://www.scrapytest.org")
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mw.process_request(req, spider)
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self.assertEqual(req.headers, defaults)
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def test_update_headers(self):
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defaults, spider, mw = self.get_defaults_spider_mw()
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headers = {"Accept-Language": ["es"], "Test-Header": ["test"]}
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bytes_headers = {b"Accept-Language": [b"es"], b"Test-Header": [b"test"]}
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req = Request("http://www.scrapytest.org", headers=headers)
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self.assertEqual(req.headers, bytes_headers)
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mw.process_request(req, spider)
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defaults.update(bytes_headers)
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self.assertEqual(req.headers, defaults)
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