mirror of https://github.com/scrapy/scrapy.git
58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
from gzip import BadGzipFile
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from pathlib import Path
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import pytest
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from w3lib.encoding import html_to_unicode
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from scrapy.http import Response
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from scrapy.utils.gz import gunzip, gzip_magic_number
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from tests import tests_datadir
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SAMPLEDIR = Path(tests_datadir, "compressed")
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class TestGunzip:
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def test_gunzip_basic(self):
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r1 = Response(
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"http://www.example.com",
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body=(SAMPLEDIR / "feed-sample1.xml.gz").read_bytes(),
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)
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assert gzip_magic_number(r1)
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r2 = Response("http://www.example.com", body=gunzip(r1.body))
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assert not gzip_magic_number(r2)
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assert 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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with pytest.raises(BadGzipFile):
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gunzip((SAMPLEDIR / "feed-sample1.xml").read_bytes())
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def test_gunzip_truncated_short(self):
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r1 = Response(
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"http://www.example.com",
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body=(SAMPLEDIR / "truncated-crc-error-short.gz").read_bytes(),
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)
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assert 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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assert not 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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assert not gzip_magic_number(r1)
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def test_gunzip_illegal_eof(self):
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text = html_to_unicode(
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"charset=cp1252", gunzip((SAMPLEDIR / "unexpected-eof.gz").read_bytes())
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)[1]
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expected_text = (SAMPLEDIR / "unexpected-eof-output.txt").read_text(
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encoding="utf-8"
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)
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assert len(text) == len(expected_text)
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assert text == expected_text
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