mirror of https://github.com/scrapy/scrapy.git
48 lines
1.7 KiB
Python
48 lines
1.7 KiB
Python
import unittest
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from pathlib import Path
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from w3lib.encoding import html_to_unicode
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from scrapy.utils.gz import gunzip, gzip_magic_number
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from scrapy.http import Response
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from tests import tests_datadir
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SAMPLEDIR = Path(tests_datadir, 'compressed')
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class GunzipTest(unittest.TestCase):
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def test_gunzip_basic(self):
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r1 = Response("http://www.example.com", body=(SAMPLEDIR / 'feed-sample1.xml.gz').read_bytes())
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self.assertTrue(gzip_magic_number(r1))
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r2 = Response("http://www.example.com", body=gunzip(r1.body))
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self.assertFalse(gzip_magic_number(r2))
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self.assertEqual(len(r2.body), 9950)
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def test_gunzip_truncated(self):
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text = gunzip((SAMPLEDIR / 'truncated-crc-error.gz').read_bytes())
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assert text.endswith(b'</html')
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def test_gunzip_no_gzip_file_raises(self):
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self.assertRaises(IOError, gunzip, (SAMPLEDIR / 'feed-sample1.xml').read_bytes())
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def test_gunzip_truncated_short(self):
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r1 = Response("http://www.example.com", body=(SAMPLEDIR / 'truncated-crc-error-short.gz').read_bytes())
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self.assertTrue(gzip_magic_number(r1))
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r2 = Response("http://www.example.com", body=gunzip(r1.body))
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assert r2.body.endswith(b'</html>')
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self.assertFalse(gzip_magic_number(r2))
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def test_is_gzipped_empty(self):
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r1 = Response("http://www.example.com")
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self.assertFalse(gzip_magic_number(r1))
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def test_gunzip_illegal_eof(self):
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text = html_to_unicode('charset=cp1252', gunzip((SAMPLEDIR / 'unexpected-eof.gz').read_bytes()))[1]
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expected_text = (SAMPLEDIR / 'unexpected-eof-output.txt').read_text(encoding="utf-8")
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self.assertEqual(len(text), len(expected_text))
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self.assertEqual(text, expected_text)
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