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