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# Copyright (C) 2005, 2006 by Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""Tests from HTTP response parsing."""
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from cStringIO import StringIO
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from bzrlib import errors
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from bzrlib.transport import http
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from bzrlib.transport.http import response
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from bzrlib.tests import TestCase
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class TestResponseRange(TestCase):
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"""Test the ResponseRange class."""
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RR = response.ResponseRange
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self.assertTrue(r1 < r2)
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self.assertFalse(r1 > r2)
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self.assertTrue(r1 < 5)
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self.assertFalse(r2 < 5)
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self.assertEqual(RR(0, 10, 5), RR(0, 10, 5))
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self.assertNotEqual(RR(0, 10, 5), RR(0, 8, 5))
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self.assertNotEqual(RR(0, 10, 5), RR(0, 10, 6))
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def test_sort_list(self):
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"""Ensure longer ranges are sorted after shorter ones"""
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RR = response.ResponseRange
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lst = [RR(3, 8, 0), 5, RR(3, 7, 0), 6]
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self.assertEqual([RR(3,7,0), RR(3,8,0), 5, 6], lst)
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class TestRangeFile(TestCase):
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content = "abcdefghijklmnopqrstuvwxyz"
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self.fp = response.RangeFile('foo', StringIO(content))
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self.fp._add_range(0, 9, 0)
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self.fp._add_range(20, 29, 10)
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self.fp._add_range(30, 39, 15)
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def test_valid_accesses(self):
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"""Test so that valid accesses work to the file."""
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self.assertEquals(self.fp.read(3), 'abc')
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self.assertEquals(self.fp.read(3), 'def')
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self.assertEquals(self.fp.tell(), 6)
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self.assertEquals(self.fp.read(3), 'klm')
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self.assertEquals(self.fp.read(2), 'no')
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self.assertEquals(self.fp.tell(), 25)
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# should wrap over to 30-39 entity
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self.assertEquals(self.fp.read(3), 'pqr')
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self.assertEquals(self.fp.read(3), 'def')
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self.assertEquals(self.fp.tell(), 6)
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def test_invalid_accesses(self):
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"""Test so that invalid accesses trigger errors."""
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self.assertRaises(errors.InvalidRange, self.fp.read, 2)
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self.assertRaises(errors.InvalidRange, self.fp.read, 2)
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self.assertRaises(errors.InvalidRange, self.fp.read, 2)
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def test__finish_ranges(self):
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"""Test that after RangeFile._finish_ranges the list is sorted."""
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self.fp._add_range(1, 2, 3)
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self.fp._add_range(8, 9, 10)
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self.fp._add_range(3, 4, 5)
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# TODO: jam 20060706 If we switch to inserting
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# in sorted order, remove this test
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self.assertNotEqual(self.fp._ranges, sorted(self.fp._ranges))
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self.fp._finish_ranges()
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self.assertEqual(self.fp._ranges, sorted(self.fp._ranges))
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def test_seek_and_tell(self):
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# Check for seeking before start
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self.assertEqual(0, self.fp.tell())
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self.assertEqual(5, self.fp.tell())
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self.assertEqual(3, self.fp.tell())
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# TODO: jam 20060706 following tests will fail if this
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# is not true, and would be difficult to debug
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# but it is a layering violation
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self.assertEqual(39, self.fp._len)
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self.assertEqual(39, self.fp.tell())
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self.assertEqual(29, self.fp.tell())
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self.assertRaises(ValueError, self.fp.seek, 0, 4)
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self.assertRaises(ValueError, self.fp.seek, 0, -1)
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class TestRegexes(TestCase):
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def assertRegexMatches(self, groups, text):
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"""Check that the regex matches and returns the right values"""
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m = self.regex.match(text)
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self.assertNotEqual(None, m, "text %s did not match regex" % (text,))
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self.assertEqual(groups, m.groups())
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def test_range_re(self):
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"""Test that we match valid ranges."""
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self.regex = response.HttpRangeResponse._CONTENT_RANGE_RE
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self.assertRegexMatches(('bytes', '1', '10', '11'),
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self.assertRegexMatches(('bytes', '1', '10', '11'),
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self.assertRegexMatches(('bytes', '2123', '4242', '1231'),
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'\tbytes 2123-4242/1231 ')
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self.assertRegexMatches(('chars', '1', '2', '3'),
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def test_content_type_re(self):
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self.regex = response.HttpMultipartRangeResponse._CONTENT_TYPE_RE
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self.assertRegexMatches(('', 'xxyyzz'),
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'multipart/byteranges; boundary = xxyyzz')
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self.assertRegexMatches(('', 'xxyyzz'),
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'multipart/byteranges;boundary=xxyyzz')
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self.assertRegexMatches(('', 'xx yy zz'),
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' multipart/byteranges ; boundary= xx yy zz ')
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self.assertRegexMatches(('"', 'xx yy zz'),
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' multipart/byteranges ; boundary= "xx yy zz" ')
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self.assertEqual(None,
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' multipart/byteranges ; boundary= "xx yy zz '))
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self.assertEqual(None,
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' multipart/byteranges ; boundary= xx yy zz" '))
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self.assertEqual(None,
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self.regex.match('multipart byteranges;boundary=xx'))
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Content-range: bytes 1-10/20\r
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Content-Range: bytes 21-30/20\r
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content-range: bytes 41-50/20\r
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content-range: bytes 51-60/20\r
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class TestHelpers(TestCase):
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"""Test the helper functions"""
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def test__parse_range(self):
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"""Test that _parse_range acts reasonably."""
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content = StringIO('')
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parse_range = response.HttpRangeResponse._parse_range
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self.assertEqual((1,2), parse_range('bytes 1-2/3'))
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self.assertEqual((10,20), parse_range('bytes 10-20/2'))
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self.assertRaises(errors.InvalidHttpRange, parse_range, 'char 1-3/2')
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self.assertRaises(errors.InvalidHttpRange, parse_range, 'bytes a-3/2')
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parse_range('bytes x-10/3', path='http://foo/bar')
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except errors.InvalidHttpRange, e:
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self.assertContainsRe(str(e), 'http://foo/bar')
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self.assertContainsRe(str(e), 'bytes x-10/3')
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self.fail('Did not raise InvalidHttpRange')
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def test__parse_boundary_simple(self):
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"""Test that _parse_boundary handles Content-type properly"""
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parse_boundary = response.HttpMultipartRangeResponse._parse_boundary
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m = parse_boundary(' multipart/byteranges; boundary=xxyyzz')
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self.assertNotEqual(None, m)
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# Check that the returned regex is capable of splitting simple_data
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matches = list(m.finditer(simple_data))
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self.assertEqual(4, len(matches))
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# match.group() should be the content-range entry
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# and match.end() should be the start of the content
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self.assertEqual(' bytes 1-10/20', matches[0].group(1))
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self.assertEqual(simple_data.find('1234567890'), matches[0].end())
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self.assertEqual(' bytes 21-30/20', matches[1].group(1))
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self.assertEqual(simple_data.find('abcdefghij'), matches[1].end())
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self.assertEqual(' bytes 41-50/20', matches[2].group(1))
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self.assertEqual(simple_data.find('zyxwvutsrq'), matches[2].end())
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self.assertEqual(' bytes 51-60/20', matches[3].group(1))
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self.assertEqual(simple_data.find('xxyyzz fbd'), matches[3].end())
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def test__parse_boundary_invalid(self):
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parse_boundary = response.HttpMultipartRangeResponse._parse_boundary
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parse_boundary(' multipart/bytes;boundary=xxyyzz',
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path='http://foo/bar')
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except errors.InvalidHttpContentType, e:
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self.assertContainsRe(str(e), 'http://foo/bar')
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self.assertContainsRe(str(e), 'multipart/bytes;boundary=xxyyzz')
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self.fail('Did not raise InvalidHttpContentType')
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class TestHttpRangeResponse(TestCase):
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def test_smoketest(self):
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"""A basic test that HttpRangeResponse is reasonable."""
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content = StringIO('0123456789')
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f = response.HttpRangeResponse('http://foo', 'bytes 1-10/9', content)
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self.assertEqual([response.ResponseRange(1,10,0)], f._ranges)
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self.assertRaises(errors.InvalidRange, f.read, 2)
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self.assertEqual('012345', f.read(6))
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def test_invalid(self):
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f = response.HttpRangeResponse('http://foo', 'bytes x-10/9',
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StringIO('0123456789'))
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except errors.InvalidHttpRange, e:
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self.assertContainsRe(str(e), 'http://foo')
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self.assertContainsRe(str(e), 'bytes x-10/9')
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self.fail('Failed to raise InvalidHttpRange')
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class TestHttpMultipartRangeResponse(TestCase):
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"""Test the handling of multipart range responses"""
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def test_simple(self):
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content = StringIO(simple_data)
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multi = response.HttpMultipartRangeResponse('http://foo',
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'multipart/byteranges; boundary = xxyyzz', content)
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self.assertEqual(4, len(multi._ranges))
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self.assertEqual('1234567890', multi.read(10))
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self.assertEqual('abcdefghij', multi.read(10))
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self.assertEqual('zyxwvutsrq', multi.read(10))
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self.assertEqual('xxyyzz fbd', multi.read(10))
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# TODO: jam 20060706 Currently RangeFile does not support
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# reading across ranges. Consider adding it.
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# self.assertEqual('zyxwvutsrqxxyyzz fbd', multi.read(20))
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self.assertRaises(errors.InvalidRange, multi.read, 20)
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self.assertRaises(errors.InvalidRange, multi.read, 11)
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self.assertRaises(errors.InvalidRange, multi.read, 10)
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def test_invalid(self):
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content = StringIO('')
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response.HttpMultipartRangeResponse('http://foo',
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'multipart/byte;boundary=invalid', content)
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except errors.InvalidHttpContentType, e:
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self.assertContainsRe(str(e), 'http://foo')
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self.assertContainsRe(str(e), 'multipart/byte;')
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# Taken from real request responses
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_full_text_response = (200, """HTTP/1.1 200 OK\r
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Date: Tue, 11 Jul 2006 04:32:56 GMT\r
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Server: Apache/2.0.54 (Fedora)\r
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Last-Modified: Sun, 23 Apr 2006 19:35:20 GMT\r
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ETag: "56691-23-38e9ae00"\r
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Accept-Ranges: bytes\r
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Content-Type: text/plain; charset=UTF-8\r
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""", """Bazaar-NG meta directory, format 1
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_missing_response = (404, """HTTP/1.1 404 Not Found\r
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Date: Tue, 11 Jul 2006 04:32:56 GMT\r
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Server: Apache/2.0.54 (Fedora)\r
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Content-Length: 336\r
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Content-Type: text/html; charset=iso-8859-1\r
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""", """<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
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<title>404 Not Found</title>
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<p>The requested URL /branches/bzr/jam-integration/.bzr/repository/format was not found on this server.</p>
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<address>Apache/2.0.54 (Fedora) Server at bzr.arbash-meinel.com Port 80</address>
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_single_range_response = (206, """HTTP/1.1 206 Partial Content\r
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Date: Tue, 11 Jul 2006 04:45:22 GMT\r
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Server: Apache/2.0.54 (Fedora)\r
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Last-Modified: Thu, 06 Jul 2006 20:22:05 GMT\r
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ETag: "238a3c-16ec2-805c5540"\r
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Accept-Ranges: bytes\r
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Content-Length: 100\r
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Content-Range: bytes 100-199/93890\r
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Content-Type: text/plain; charset=UTF-8\r
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""", """mbp@sourcefrog.net-20050309040815-13242001617e4a06
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mbp@sourcefrog.net-20050309040929-eee0eb3e6d1e762""")
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_multipart_range_response = (206, """HTTP/1.1 206 Partial Content\r
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Date: Tue, 11 Jul 2006 04:49:48 GMT\r
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Server: Apache/2.0.54 (Fedora)\r
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Last-Modified: Thu, 06 Jul 2006 20:22:05 GMT\r
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ETag: "238a3c-16ec2-805c5540"\r
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Accept-Ranges: bytes\r
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Content-Length: 1534\r
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Content-Type: multipart/byteranges; boundary=418470f848b63279b\r
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\r""", """--418470f848b63279b\r
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Content-type: text/plain; charset=UTF-8\r
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Content-range: bytes 0-254/93890\r
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mbp@sourcefrog.net-20050309040815-13242001617e4a06
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mbp@sourcefrog.net-20050309040929-eee0eb3e6d1e7627
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mbp@sourcefrog.net-20050309040957-6cad07f466bb0bb8
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mbp@sourcefrog.net-20050309041501-c840e09071de3b67
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mbp@sourcefrog.net-20050309044615-c24a3250be83220a
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--418470f848b63279b\r
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Content-type: text/plain; charset=UTF-8\r
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Content-range: bytes 1000-2049/93890\r
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mbp@sourcefrog.net-20050311063625-07858525021f270b
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mbp@sourcefrog.net-20050311231934-aa3776aff5200bb9
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mbp@sourcefrog.net-20050311231953-73aeb3a131c3699a
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mbp@sourcefrog.net-20050311232353-f5e33da490872c6a
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mbp@sourcefrog.net-20050312071639-0a8f59a34a024ff0
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mbp@sourcefrog.net-20050312073432-b2c16a55e0d6e9fb
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mbp@sourcefrog.net-20050312073831-a47c3335ece1920f
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mbp@sourcefrog.net-20050312085412-13373aa129ccbad3
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mbp@sourcefrog.net-20050313052251-2bf004cb96b39933
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mbp@sourcefrog.net-20050313052856-3edd84094687cb11
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mbp@sourcefrog.net-20050313053233-e30a4f28aef48f9d
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mbp@sourcefrog.net-20050313053853-7c64085594ff3072
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mbp@sourcefrog.net-20050313054757-a86c3f5871069e22
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mbp@sourcefrog.net-20050313061422-418f1f73b94879b9
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mbp@sourcefrog.net-20050313120651-497bd231b19df600
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mbp@sourcefrog.net-20050314024931-eae0170ef25a5d1a
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mbp@sourcefrog.net-20050314025438-d52099f915fe65fc
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mbp@sourcefrog.net-20050314025539-637a636692c055cf
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mbp@sourcefrog.net-20050314025737-55eb441f430ab4ba
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mbp@sourcefrog.net-20050314025901-d74aa93bb7ee8f62
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--418470f848b63279b--\r
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_multipart_squid_range_response = (206, """HTTP/1.0 206 Partial Content\r
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Date: Thu, 31 Aug 2006 21:16:22 GMT\r
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Server: Apache/2.2.2 (Unix) DAV/2\r
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Last-Modified: Thu, 31 Aug 2006 17:57:06 GMT\r
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Accept-Ranges: bytes\r
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Content-Type: multipart/byteranges; boundary="squid/2.5.STABLE12:C99323425AD4FE26F726261FA6C24196"\r
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Content-Length: 598\r
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X-Cache: MISS from localhost.localdomain\r
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X-Cache-Lookup: HIT from localhost.localdomain:3128\r
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Proxy-Connection: keep-alive\r
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--squid/2.5.STABLE12:C99323425AD4FE26F726261FA6C24196\r
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Content-Type: text/plain\r
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Content-Range: bytes 0-99/18672\r
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scott@netsplit.com-20050708230047-47c7868f276b939f fulltext 0 863 :
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--squid/2.5.STABLE12:C99323425AD4FE26F726261FA6C24196\r
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Content-Type: text/plain\r
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Content-Range: bytes 300-499/18672\r
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com-20050708231537-2b124b835395399a :
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scott@netsplit.com-20050820234126-551311dbb7435b51 line-delta 1803 479 .scott@netsplit.com-20050820232911-dc4322a084eadf7e :
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scott@netsplit.com-20050821213706-c86\r
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--squid/2.5.STABLE12:C99323425AD4FE26F726261FA6C24196--\r
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_redirect_response = (206, """HTTP/1.1 301 Moved Permanently\r
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Date: Tue, 18 Jul 2006 20:29:22 GMT\r
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Server: Apache/2.0.54 (Ubuntu) PHP/4.4.0-3ubuntu1 mod_ssl/2.0.54 OpenSSL/0.9.7g\r
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Location: http://bazaar-vcs.org/bzr/bzr.dev/.bzr/repository/inventory.knit\r
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Content-Length: 272\r
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Keep-Alive: timeout=15, max=100\r
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Connection: Keep-Alive\r
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Content-Type: text/html; charset=iso-8859-1\r
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HTTP/1.1 206 Partial Content\r
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Date: Tue, 18 Jul 2006 20:29:23 GMT\r
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Server: Apache/2.0.54 (Ubuntu) PHP/4.4.0-3ubuntu1 mod_ssl/2.0.54 OpenSSL/0.9.7g\r
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Last-Modified: Tue, 18 Jul 2006 20:24:59 GMT\r
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ETag: "be8213-83958c-f0d3dcc0"\r
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Accept-Ranges: bytes\r
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Content-Length: 425\r
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Content-Range: bytes 8623075-8623499/8623500\r
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Keep-Alive: timeout=15, max=100\r
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Connection: Keep-Alive\r
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Content-Type: text/plain; charset=UTF-8\r
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""", """this data intentionally removed,
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this is not meant to be tested by
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handle_response, just _extract_headers
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_invalid_response = (444, """HTTP/1.1 444 Bad Response\r
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Date: Tue, 11 Jul 2006 04:32:56 GMT\r
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Content-Type: text/html; charset=iso-8859-1\r
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""", """<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
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<title>404 Not Found</title>
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<p>I don't know what I'm doing</p>
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# This should be in test_http.py, but the headers we
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# want to parse are here
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class TestExtractHeader(TestCase):
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def use_response(self, response):
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self.headers = http._extract_headers(response[1], 'http://foo')
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def check_header(self, header, value):
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self.assertEqual(value, self.headers[header])
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def test_full_text(self):
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self.use_response(_full_text_response)
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self.check_header('Date', 'Tue, 11 Jul 2006 04:32:56 GMT')
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self.check_header('date', 'Tue, 11 Jul 2006 04:32:56 GMT')
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self.check_header('Content-Length', '35')
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self.check_header('Content-Type', 'text/plain; charset=UTF-8')
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self.check_header('content-type', 'text/plain; charset=UTF-8')
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def test_missing_response(self):
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self.use_response(_missing_response)
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self.check_header('Content-Length', '336')
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self.check_header('Content-Type', 'text/html; charset=iso-8859-1')
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def test_single_range(self):
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self.use_response(_single_range_response)
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self.check_header('Content-Length', '100')
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self.check_header('Content-Range', 'bytes 100-199/93890')
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self.check_header('Content-Type', 'text/plain; charset=UTF-8')
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def test_multi_range(self):
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self.use_response(_multipart_range_response)
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self.check_header('Content-Length', '1534')
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self.check_header('Content-Type',
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'multipart/byteranges; boundary=418470f848b63279b')
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def test_multi_squid_range(self):
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self.use_response(_multipart_squid_range_response)
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self.check_header('Content-Length', '598')
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self.check_header('Content-Type',
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'multipart/byteranges; '\
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'boundary="squid/2.5.STABLE12:C99323425AD4FE26F726261FA6C24196"')
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def test_redirect(self):
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"""We default to returning the last group of headers in the file."""
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self.use_response(_redirect_response)
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self.check_header('Content-Range', 'bytes 8623075-8623499/8623500')
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self.check_header('Content-Type', 'text/plain; charset=UTF-8')
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def test_empty(self):
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self.assertRaises(errors.InvalidHttpResponse,
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http._extract_headers, '', 'bad url')
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def test_no_opening_http(self):
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# Remove the HTTP line from the header
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first, txt = _full_text_response[1].split('\r\n', 1)
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self.assertRaises(errors.InvalidHttpResponse,
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http._extract_headers, txt, 'missing HTTTP')
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def test_trailing_whitespace(self):
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# Test that we ignore bogus whitespace on the end
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code, txt, body = _full_text_response
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txt += '\r\n\n\n\n\n'
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self.use_response((code, txt, body))
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self.check_header('Date', 'Tue, 11 Jul 2006 04:32:56 GMT')
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self.check_header('Content-Length', '35')
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self.check_header('Content-Type', 'text/plain; charset=UTF-8')
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def test_trailing_non_http(self):
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# Test that we ignore bogus stuff on the end
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code, txt, body = _full_text_response
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txt = txt + 'Foo: Bar\r\nBaz: Bling\r\n\r\n'
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self.use_response((code, txt, body))
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self.check_header('Date', 'Tue, 11 Jul 2006 04:32:56 GMT')
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self.check_header('Content-Length', '35')
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self.check_header('Content-Type', 'text/plain; charset=UTF-8')
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self.assertRaises(KeyError, self.headers.__getitem__, 'Foo')
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def test_extra_whitespace(self):
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# Test that we read an HTTP response, even with extra whitespace
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code, txt, body = _redirect_response
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# Find the second HTTP location
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loc = txt.find('HTTP', 5)
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txt = txt[:loc] + '\r\n\n' + txt[loc:]
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self.use_response((code, txt, body))
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self.check_header('Content-Range', 'bytes 8623075-8623499/8623500')
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self.check_header('Content-Type', 'text/plain; charset=UTF-8')
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class TestHandleResponse(TestCase):
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def get_response(self, a_response):
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"""Process a supplied response, and return the result."""
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headers = http._extract_headers(a_response[1], 'http://foo')
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return response.handle_response('http://foo', a_response[0], headers,
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StringIO(a_response[2]))
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def test_full_text(self):
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out = self.get_response(_full_text_response)
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# It is a StringIO from the original data
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self.assertEqual(_full_text_response[2], out.read())
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def test_missing_response(self):
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self.assertRaises(errors.NoSuchFile,
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self.get_response, _missing_response)
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def test_single_range(self):
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out = self.get_response(_single_range_response)
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self.assertIsInstance(out, response.HttpRangeResponse)
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self.assertRaises(errors.InvalidRange, out.read, 20)
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self.assertEqual(_single_range_response[2], out.read(100))
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def test_multi_range(self):
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out = self.get_response(_multipart_range_response)
602
self.assertIsInstance(out, response.HttpMultipartRangeResponse)
604
# Just make sure we can read the right contents
611
def test_multi_squid_range(self):
612
out = self.get_response(_multipart_squid_range_response)
613
self.assertIsInstance(out, response.HttpMultipartRangeResponse)
615
# Just make sure we can read the right contents
622
def test_invalid_response(self):
623
self.assertRaises(errors.InvalidHttpResponse,
624
self.get_response, _invalid_response)
626
def test_full_text_no_content_type(self):
627
# We should not require Content-Type for a full response
628
a_response = _full_text_response
629
headers = http._extract_headers(a_response[1], 'http://foo')
630
del headers['Content-Type']
631
out = response.handle_response('http://foo', a_response[0], headers,
632
StringIO(a_response[2]))
633
self.assertEqual(_full_text_response[2], out.read())
635
def test_missing_no_content_type(self):
636
# Without Content-Type we should still raise NoSuchFile on a 404
637
a_response = _missing_response
638
headers = http._extract_headers(a_response[1], 'http://missing')
639
del headers['Content-Type']
640
self.assertRaises(errors.NoSuchFile,
641
response.handle_response, 'http://missing', a_response[0], headers,
642
StringIO(a_response[2]))
644
def test_missing_content_type(self):
645
a_response = _single_range_response
646
headers = http._extract_headers(a_response[1], 'http://nocontent')
647
del headers['Content-Type']
648
self.assertRaises(errors.InvalidHttpContentType,
649
response.handle_response, 'http://nocontent', a_response[0],
650
headers, StringIO(a_response[2]))
652
def test_missing_content_range(self):
653
a_response = _single_range_response
654
headers = http._extract_headers(a_response[1], 'http://nocontent')
655
del headers['Content-Range']
656
self.assertRaises(errors.InvalidHttpResponse,
657
response.handle_response, 'http://nocontent', a_response[0],
658
headers, StringIO(a_response[2]))