openstack/swift
Code Issues Proposed changes
swift/test/unit/common/test_swob.py
Clay Gerrard 4a37a2976b slo: refactor GET/HEAD response handling 
This patch reorganizes the SLO read response handling.  The main goal
was to push the response header replacement for both GET/HEAD SLO and
multipart-manifest=get paths all into a common return path.  A new
RespAttrs primitive is used to carry around some metadata details from
requests made in SLO.  The authors hope these changes make the code more
easily readable and easier to modify.

Drive-By: add new "friendly_close" function in common.utils so we can
drain empty/error responses more confidently (and use it in swob and
request_helpers).

Drive-By: the tests added in the Related-Change discovered a 500 on
If-[Un]Modified-Since conditional GET requests - it probably wasn't
important, but this refactor fixed it on accident as a side effect.

Closes-Bug: #2040178
Co-Authored-By: Alistair Coles <alistairncoles@gmail.com>
Co-Authored-By: Ashwin Nair <nairashwin952013@gmail.com>
Related-Change-Id: I54094f3d2098f56b755ec19cc9315d06a6ca8b15
Change-Id: Idc84e70539fc7480b6ecb86e2f0da904baf2c727
2023-11-10 15:26:28 -06:00

2062 lines
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# Copyright (c) 2012 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"Tests for swift.common.swob"
import datetime
import unittest
import re
import time
from io import BytesIO
import mock
import six
from six.moves.urllib.parse import quote
import swift.common.swob as swob
from swift.common import utils, exceptions
from test.unit.common.middleware.helpers import LeakTrackingIter
class TestHeaderEnvironProxy(unittest.TestCase):
def test_proxy(self):
environ = {}
proxy = swob.HeaderEnvironProxy(environ)
self.assertIs(environ, proxy.environ)
proxy['Content-Length'] = 20
proxy['Content-Type'] = 'text/plain'
proxy['Something-Else'] = 'somevalue'
# NB: WSGI strings
proxy['X-Object-Meta-Unicode-\xff-Bu\xc3\x9fe'] = '\xe2\x98\xb9'
self.assertEqual(proxy.environ, {
'CONTENT_LENGTH': '20',
'CONTENT_TYPE': 'text/plain',
'HTTP_SOMETHING_ELSE': 'somevalue',
'HTTP_X_OBJECT_META_UNICODE_\xff_BU\xc3\x9fE': '\xe2\x98\xb9'})
self.assertEqual(proxy['content-length'], '20')
self.assertEqual(proxy['content-type'], 'text/plain')
self.assertEqual(proxy['something-else'], 'somevalue')
self.assertEqual(set(['Something-Else',
'X-Object-Meta-Unicode-\xff-Bu\xc3\x9fE',
'Content-Length', 'Content-Type']),
set(proxy.keys()))
self.assertEqual(list(iter(proxy)), proxy.keys())
self.assertEqual(4, len(proxy))
def test_ignored_keys(self):
# Constructor doesn't normalize keys
key = 'wsgi.input'
environ = {key: ''}
proxy = swob.HeaderEnvironProxy(environ)
self.assertEqual([], list(iter(proxy)))
self.assertEqual([], proxy.keys())
self.assertEqual(0, len(proxy))
self.assertRaises(KeyError, proxy.__getitem__, key)
self.assertNotIn(key, proxy)
self.assertIn(key, proxy.environ)
self.assertIs(environ, proxy.environ)
proxy['Content-Type'] = 'text/plain'
self.assertEqual(['Content-Type'], list(iter(proxy)))
self.assertEqual(['Content-Type'], proxy.keys())
self.assertEqual(1, len(proxy))
self.assertEqual('text/plain', proxy['Content-Type'])
self.assertIn('Content-Type', proxy)
def test_del(self):
environ = {}
proxy = swob.HeaderEnvironProxy(environ)
proxy['Content-Length'] = 20
proxy['Content-Type'] = 'text/plain'
proxy['Something-Else'] = 'somevalue'
del proxy['Content-Length']
del proxy['Content-Type']
del proxy['Something-Else']
self.assertEqual(proxy.environ, {})
self.assertEqual(0, len(proxy))
with self.assertRaises(KeyError):
del proxy['Content-Length']
def test_contains(self):
environ = {}
proxy = swob.HeaderEnvironProxy(environ)
proxy['Content-Length'] = 20
proxy['Content-Type'] = 'text/plain'
proxy['Something-Else'] = 'somevalue'
self.assertTrue('content-length' in proxy)
self.assertTrue('content-type' in proxy)
self.assertTrue('something-else' in proxy)
def test_keys(self):
environ = {}
proxy = swob.HeaderEnvironProxy(environ)
proxy['Content-Length'] = 20
proxy['Content-Type'] = 'text/plain'
proxy['Something-Else'] = 'somevalue'
self.assertEqual(
set(proxy.keys()),
set(('Content-Length', 'Content-Type', 'Something-Else')))
class TestRange(unittest.TestCase):
def test_range(self):
swob_range = swob.Range('bytes=1-7')
self.assertEqual(swob_range.ranges[0], (1, 7))
def test_upsidedown_range(self):
swob_range = swob.Range('bytes=5-10')
self.assertEqual(swob_range.ranges_for_length(2), [])
def test_str(self):
for range_str in ('bytes=1-7', 'bytes=1-', 'bytes=-1',
'bytes=1-7,9-12', 'bytes=-7,9-'):
swob_range = swob.Range(range_str)
self.assertEqual(str(swob_range), range_str)
def test_ranges_for_length(self):
swob_range = swob.Range('bytes=1-7')
self.assertEqual(swob_range.ranges_for_length(10), [(1, 8)])
self.assertEqual(swob_range.ranges_for_length(5), [(1, 5)])
self.assertIsNone(swob_range.ranges_for_length(None))
def test_ranges_for_large_length(self):
swob_range = swob.Range('bytes=-100000000000000000000000')
self.assertEqual(swob_range.ranges_for_length(100), [(0, 100)])
def test_ranges_for_length_no_end(self):
swob_range = swob.Range('bytes=1-')
self.assertEqual(swob_range.ranges_for_length(10), [(1, 10)])
self.assertEqual(swob_range.ranges_for_length(5), [(1, 5)])
self.assertIsNone(swob_range.ranges_for_length(None))
# This used to freak out:
swob_range = swob.Range('bytes=100-')
self.assertEqual(swob_range.ranges_for_length(5), [])
self.assertIsNone(swob_range.ranges_for_length(None))
swob_range = swob.Range('bytes=4-6,100-')
self.assertEqual(swob_range.ranges_for_length(5), [(4, 5)])
def test_ranges_for_length_no_start(self):
swob_range = swob.Range('bytes=-7')
self.assertEqual(swob_range.ranges_for_length(10), [(3, 10)])
self.assertEqual(swob_range.ranges_for_length(5), [(0, 5)])
self.assertIsNone(swob_range.ranges_for_length(None))
swob_range = swob.Range('bytes=4-6,-100')
self.assertEqual(swob_range.ranges_for_length(5), [(4, 5), (0, 5)])
def test_ranges_for_length_multi(self):
swob_range = swob.Range('bytes=-20,4-')
self.assertEqual(len(swob_range.ranges_for_length(200)), 2)
# the actual length greater than each range element
self.assertEqual(swob_range.ranges_for_length(200),
[(180, 200), (4, 200)])
swob_range = swob.Range('bytes=30-150,-10')
self.assertEqual(len(swob_range.ranges_for_length(200)), 2)
# the actual length lands in the middle of a range
self.assertEqual(swob_range.ranges_for_length(90),
[(30, 90), (80, 90)])
# the actual length greater than any of the range
self.assertEqual(swob_range.ranges_for_length(200),
[(30, 151), (190, 200)])
self.assertIsNone(swob_range.ranges_for_length(None))
def test_ranges_for_length_edges(self):
swob_range = swob.Range('bytes=0-1, -7')
self.assertEqual(swob_range.ranges_for_length(10),
[(0, 2), (3, 10)])
swob_range = swob.Range('bytes=-7, 0-1')
self.assertEqual(swob_range.ranges_for_length(10),
[(3, 10), (0, 2)])
swob_range = swob.Range('bytes=-7, 0-1')
self.assertEqual(swob_range.ranges_for_length(5),
[(0, 5), (0, 2)])
def test_ranges_for_length_overlapping(self):
# Fewer than 3 overlaps is okay
swob_range = swob.Range('bytes=10-19,15-24')
self.assertEqual(swob_range.ranges_for_length(100),
[(10, 20), (15, 25)])
swob_range = swob.Range('bytes=10-19,15-24,20-29')
self.assertEqual(swob_range.ranges_for_length(100),
[(10, 20), (15, 25), (20, 30)])
# Adjacent ranges, though suboptimal, don't overlap
swob_range = swob.Range('bytes=10-19,20-29,30-39')
self.assertEqual(swob_range.ranges_for_length(100),
[(10, 20), (20, 30), (30, 40)])
# Ranges that share a byte do overlap
swob_range = swob.Range('bytes=10-20,20-30,30-40,40-50')
self.assertEqual(swob_range.ranges_for_length(100), [])
# With suffix byte range specs (e.g. bytes=-2), make sure that we
# correctly determine overlapping-ness based on the entity length
swob_range = swob.Range('bytes=10-15,15-20,30-39,-9')
self.assertEqual(swob_range.ranges_for_length(100),
[(10, 16), (15, 21), (30, 40), (91, 100)])
self.assertEqual(swob_range.ranges_for_length(20), [])
def test_ranges_for_length_nonascending(self):
few_ranges = ("bytes=100-109,200-209,300-309,500-509,"
"400-409,600-609,700-709")
many_ranges = few_ranges + ",800-809"
swob_range = swob.Range(few_ranges)
self.assertEqual(swob_range.ranges_for_length(100000),
[(100, 110), (200, 210), (300, 310), (500, 510),
(400, 410), (600, 610), (700, 710)])
swob_range = swob.Range(many_ranges)
self.assertEqual(swob_range.ranges_for_length(100000), [])
def test_ranges_for_length_too_many(self):
at_the_limit_ranges = (
"bytes=" + ",".join("%d-%d" % (x * 1000, x * 1000 + 10)
for x in range(50)))
too_many_ranges = at_the_limit_ranges + ",10000000-10000009"
rng = swob.Range(at_the_limit_ranges)
self.assertEqual(len(rng.ranges_for_length(1000000000)), 50)
rng = swob.Range(too_many_ranges)
self.assertEqual(rng.ranges_for_length(1000000000), [])
def test_range_invalid_syntax(self):
def _assert_invalid_range(range_value):
try:
swob.Range(range_value)
self.fail("Expected %r to be invalid, but wasn't" %
(range_value,))
except ValueError:
pass
"""
All the following cases should result ValueError exception
1. value not starts with bytes=
2. range value start is greater than the end, eg. bytes=5-3
3. range does not have start or end, eg. bytes=-
4. range does not have hyphen, eg. bytes=45
5. range value is non numeric
6. any combination of the above
"""
_assert_invalid_range(None)
_assert_invalid_range('nonbytes=0-')
_assert_invalid_range('nonbytes=foobar,10-2')
_assert_invalid_range('bytes=5-3')
_assert_invalid_range('bytes=-')
_assert_invalid_range('bytes=45')
_assert_invalid_range('bytes=foo-bar,3-5')
_assert_invalid_range('bytes=4-10,45')
_assert_invalid_range('bytes=foobar,3-5')
_assert_invalid_range('bytes=nonumber-5')
_assert_invalid_range('bytes=nonumber')
_assert_invalid_range('bytes=--1')
_assert_invalid_range('bytes=--0')
class TestMatch(unittest.TestCase):
def test_match(self):
match = swob.Match('"a", "b"')
self.assertEqual(match.tags, set(('a', 'b')))
self.assertIn('a', match)
self.assertIn('"a"', match)
self.assertNotIn('""a""', match)
self.assertIn('b', match)
self.assertNotIn('c', match)
self.assertNotIn(None, match)
self.assertEqual(repr(match), "Match('a, b')")
def test_match_star(self):
match = swob.Match('"a", "*"')
self.assertIn('a', match)
self.assertIn('"a"', match)
self.assertIn('""a""', match)
self.assertIn('b', match)
self.assertIn('c', match)
self.assertIn(None, match)
self.assertEqual(repr(match), "Match('*, a')")
def test_match_noquote(self):
match = swob.Match('a, b')
self.assertEqual(match.tags, set(('a', 'b')))
self.assertIn('a', match)
self.assertIn('"a"', match)
self.assertNotIn('""a""', match)
self.assertIn('b', match)
self.assertNotIn('c', match)
self.assertNotIn(None, match)
def test_match_no_optional_white_space(self):
match = swob.Match('"a","b"')
self.assertEqual(match.tags, set(('a', 'b')))
self.assertIn('a', match)
self.assertIn('"a"', match)
self.assertNotIn('""a""', match)
self.assertIn('b', match)
self.assertNotIn('c', match)
self.assertNotIn(None, match)
def test_match_lots_of_optional_white_space(self):
match = swob.Match('"a" , , "b" ')
self.assertEqual(match.tags, set(('a', 'b')))
self.assertIn('a', match)
self.assertIn('"a"', match)
self.assertNotIn('""a""', match)
self.assertIn('b', match)
self.assertNotIn('c', match)
self.assertNotIn(None, match)
class TestEtag(unittest.TestCase):
def test_normalize_etag(self):
expectations = {
'': '',
'"': '"',
'""': '',
'foo': 'foo',
'"bar"': 'bar',
'"baz': '"baz',
'buz"': 'buz"',
'"fuz""': 'fuz"',
u'\u2661': u'\u2661',
u'"\u2661"': u'\u2661',
u'"\u2661': u'"\u2661',
}
failures = []
for given, expected in expectations.items():
found = swob.normalize_etag(given)
if found != expected:
failures.append(
'given %r expected %r != %r' % (given, expected, found))
if failures:
self.fail('Some expectations failed:\n' + '\n'.join(failures))
def test_normalize_bytes(self):
some_etag = b'"some-etag"'
if six.PY2:
self.assertEqual('some-etag', swob.normalize_etag(some_etag))
else:
self.assertRaises(TypeError, swob.normalize_etag, some_etag)
class TestTransferEncoding(unittest.TestCase):
def test_is_chunked(self):
headers = {}
self.assertFalse(swob.is_chunked(headers))
headers['Transfer-Encoding'] = 'chunked'
self.assertTrue(swob.is_chunked(headers))
headers['Transfer-Encoding'] = 'gzip,chunked'
try:
swob.is_chunked(headers)
except AttributeError as e:
self.assertEqual(str(e), "Unsupported Transfer-Coding header"
" value specified in Transfer-Encoding header")
else:
self.fail("Expected an AttributeError raised for 'gzip'")
headers['Transfer-Encoding'] = 'gzip'
try:
swob.is_chunked(headers)
except ValueError as e:
self.assertEqual(str(e), "Invalid Transfer-Encoding header value")
else:
self.fail("Expected a ValueError raised for 'gzip'")
headers['Transfer-Encoding'] = 'gzip,identity'
try:
swob.is_chunked(headers)
except AttributeError as e:
self.assertEqual(str(e), "Unsupported Transfer-Coding header"
" value specified in Transfer-Encoding header")
else:
self.fail("Expected an AttributeError raised for 'gzip,identity'")
class TestAccept(unittest.TestCase):
def test_accept_json(self):
for accept in ('application/json', 'application/json;q=1.0,*/*;q=0.9',
'*/*;q=0.9,application/json;q=1.0', 'application/*',
'text/*,application/json', 'application/*,text/*',
'application/json,text/xml'):
acc = swob.Accept(accept)
match = acc.best_match(['text/plain', 'application/json',
'application/xml', 'text/xml'])
self.assertEqual(match, 'application/json')
def test_accept_plain(self):
for accept in ('', 'text/plain', 'application/xml;q=0.8,*/*;q=0.9',
'*/*;q=0.9,application/xml;q=0.8', '*/*',
'text/plain,application/xml'):
acc = swob.Accept(accept)
match = acc.best_match(['text/plain', 'application/json',
'application/xml', 'text/xml'])
self.assertEqual(match, 'text/plain')
def test_accept_xml(self):
for accept in ('application/xml', 'application/xml;q=1.0,*/*;q=0.9',
'*/*;q=0.9,application/xml;q=1.0',
'application/xml;charset=UTF-8',
'application/xml;charset=UTF-8;qws="quoted with space"',
'application/xml; q=0.99 ; qws="quoted with space"'):
acc = swob.Accept(accept)
match = acc.best_match(['text/plain', 'application/xml',
'text/xml'])
self.assertEqual(match, 'application/xml')
def test_accept_invalid(self):
for accept in ('*', 'text/plain,,', 'some stuff',
'application/xml;q=1.0;q=1.1', 'text/plain,*',
'text /plain', 'text\x7f/plain',
'text/plain;a=b=c',
'text/plain;q=1;q=2',
'text/plain;q=not-a-number',
'text/plain; ubq="unbalanced " quotes"'):
acc = swob.Accept(accept)
with self.assertRaises(ValueError):
acc.best_match(['text/plain', 'application/xml', 'text/xml'])
def test_repr(self):
acc = swob.Accept("application/json")
self.assertEqual(repr(acc), "application/json")
class TestRequest(unittest.TestCase):
def test_blank(self):
req = swob.Request.blank(
'/', environ={'REQUEST_METHOD': 'POST'},
headers={'Content-Type': 'text/plain'}, body='hi')
self.assertEqual(req.path_info, '/')
self.assertEqual(req.body, b'hi')
self.assertEqual(req.headers['Content-Type'], 'text/plain')
self.assertEqual(req.method, 'POST')
def test_blank_req_environ_property_args(self):
blank = swob.Request.blank
req = blank('/', method='PATCH')
self.assertEqual(req.method, 'PATCH')
self.assertEqual(req.environ['REQUEST_METHOD'], 'PATCH')
req = blank('/', referer='http://example.com')
self.assertEqual(req.referer, 'http://example.com')
self.assertEqual(req.referrer, 'http://example.com')
self.assertEqual(req.environ['HTTP_REFERER'], 'http://example.com')
self.assertEqual(req.headers['Referer'], 'http://example.com')
req = blank('/', script_name='/application')
self.assertEqual(req.script_name, '/application')
self.assertEqual(req.environ['SCRIPT_NAME'], '/application')
req = blank('/', host='www.example.com')
self.assertEqual(req.host, 'www.example.com')
self.assertEqual(req.environ['HTTP_HOST'], 'www.example.com')
self.assertEqual(req.headers['Host'], 'www.example.com')
req = blank('/', remote_addr='127.0.0.1')
self.assertEqual(req.remote_addr, '127.0.0.1')
self.assertEqual(req.environ['REMOTE_ADDR'], '127.0.0.1')
req = blank('/', remote_user='username')
self.assertEqual(req.remote_user, 'username')
self.assertEqual(req.environ['REMOTE_USER'], 'username')
req = blank('/', user_agent='curl/7.22.0 (x86_64-pc-linux-gnu)')
self.assertEqual(req.user_agent, 'curl/7.22.0 (x86_64-pc-linux-gnu)')
self.assertEqual(req.environ['HTTP_USER_AGENT'],
'curl/7.22.0 (x86_64-pc-linux-gnu)')
self.assertEqual(req.headers['User-Agent'],
'curl/7.22.0 (x86_64-pc-linux-gnu)')
req = blank('/', query_string='a=b&c=d')
self.assertEqual(req.query_string, 'a=b&c=d')
self.assertEqual(req.environ['QUERY_STRING'], 'a=b&c=d')
req = blank('/', if_match='*')
self.assertEqual(req.environ['HTTP_IF_MATCH'], '*')
self.assertEqual(req.headers['If-Match'], '*')
# multiple environ property kwargs
req = blank('/', method='PATCH', referer='http://example.com',
script_name='/application', host='www.example.com',
remote_addr='127.0.0.1', remote_user='username',
user_agent='curl/7.22.0 (x86_64-pc-linux-gnu)',
query_string='a=b&c=d', if_match='*')
self.assertEqual(req.method, 'PATCH')
self.assertEqual(req.referer, 'http://example.com')
self.assertEqual(req.script_name, '/application')
self.assertEqual(req.host, 'www.example.com')
self.assertEqual(req.remote_addr, '127.0.0.1')
self.assertEqual(req.remote_user, 'username')
self.assertEqual(req.user_agent, 'curl/7.22.0 (x86_64-pc-linux-gnu)')
self.assertEqual(req.query_string, 'a=b&c=d')
self.assertEqual(req.environ['QUERY_STRING'], 'a=b&c=d')
def test_invalid_req_environ_property_args(self):
# getter only property
try:
swob.Request.blank(
'/', host_url='http://example.com:8080/v1/a/c/o')
except TypeError as e:
self.assertEqual("got unexpected keyword argument 'host_url'",
str(e))
else:
self.fail("invalid req_environ_property didn't raise error!")
# regular attribute
try:
swob.Request.blank('/', _params_cache={'a': 'b'})
except TypeError as e:
self.assertEqual("got unexpected keyword "
"argument '_params_cache'", str(e))
else:
self.fail("invalid req_environ_property didn't raise error!")
# non-existent attribute
try:
swob.Request.blank('/', params_cache={'a': 'b'})
except TypeError as e:
self.assertEqual("got unexpected keyword "
"argument 'params_cache'", str(e))
else:
self.fail("invalid req_environ_property didn't raise error!")
# method
try:
swob.Request.blank(
'/', as_referer='GET http://example.com')
except TypeError as e:
self.assertEqual("got unexpected keyword "
"argument 'as_referer'", str(e))
else:
self.fail("invalid req_environ_property didn't raise error!")
def test_blank_path_info_precedence(self):
blank = swob.Request.blank
req = blank('/a')
self.assertEqual(req.path_info, '/a')
req = blank('/a', environ={'PATH_INFO': '/a/c'})
self.assertEqual(req.path_info, '/a/c')
req = blank('/a', environ={'PATH_INFO': '/a/c'}, path_info='/a/c/o')
self.assertEqual(req.path_info, '/a/c/o')
req = blank('/a', path_info='/a/c/o')
self.assertEqual(req.path_info, '/a/c/o')
def test_blank_body_precedence(self):
req = swob.Request.blank(
'/', environ={'REQUEST_METHOD': 'POST',
'wsgi.input': BytesIO(b'')},
headers={'Content-Type': 'text/plain'}, body='hi')
self.assertEqual(req.path_info, '/')
self.assertEqual(req.body, b'hi')
self.assertEqual(req.headers['Content-Type'], 'text/plain')
self.assertEqual(req.method, 'POST')
body_file = BytesIO(b'asdf')
req = swob.Request.blank(
'/', environ={'REQUEST_METHOD': 'POST',
'wsgi.input': BytesIO(b'')},
headers={'Content-Type': 'text/plain'}, body='hi',
body_file=body_file)
self.assertTrue(req.body_file is body_file)
req = swob.Request.blank(
'/', environ={'REQUEST_METHOD': 'POST',
'wsgi.input': BytesIO(b'')},
headers={'Content-Type': 'text/plain'}, body='hi',
content_length=3)
self.assertEqual(req.content_length, 3)
self.assertEqual(len(req.body), 2)
def test_blank_parsing(self):
req = swob.Request.blank('http://test.com/')
self.assertEqual(req.environ['wsgi.url_scheme'], 'http')
self.assertEqual(req.environ['SERVER_PORT'], '80')
self.assertEqual(req.environ['SERVER_NAME'], 'test.com')
req = swob.Request.blank('https://test.com:456/')
self.assertEqual(req.environ['wsgi.url_scheme'], 'https')
self.assertEqual(req.environ['SERVER_PORT'], '456')
req = swob.Request.blank('test.com/')
self.assertEqual(req.environ['wsgi.url_scheme'], 'http')
self.assertEqual(req.environ['SERVER_PORT'], '80')
self.assertEqual(req.environ['PATH_INFO'], 'test.com/')
self.assertRaises(TypeError, swob.Request.blank,
'ftp://test.com/')
def test_params(self):
req = swob.Request.blank('/?a=b&c=d')
self.assertEqual(req.params['a'], 'b')
self.assertEqual(req.params['c'], 'd')
new_params = {'e': 'f', 'g': 'h'}
req.params = new_params
self.assertDictEqual(new_params, req.params)
new_params = (('i', 'j'), ('k', 'l'))
req.params = new_params
self.assertDictEqual(dict(new_params), req.params)
def test_unicode_params(self):
# NB: all of these strings are WSGI strings
req = swob.Request.blank(
'/?\xe1\x88\xb4=%E1%88%B4&%FF=\xff')
self.assertEqual(req.params['\xff'], '\xff')
self.assertEqual(req.params['\xe1\x88\xb4'], '\xe1\x88\xb4')
new_params = {'\xff': '\xe1\x88\xb4', '\xe1\x88\xb4': '\xff'}
req.params = new_params
self.assertDictEqual(new_params, req.params)
self.assertIn('%FF=%E1%88%B4', req.environ['QUERY_STRING'])
self.assertIn('%E1%88%B4=%FF', req.environ['QUERY_STRING'])
# ...well, until we get to unicode that isn't WSGI-friendly
new_params = ((u'\u1234', u'\u1234'), )
with self.assertRaises(UnicodeEncodeError):
req.params = new_params
def test_timestamp_missing(self):
req = swob.Request.blank('/')
self.assertRaises(exceptions.InvalidTimestamp,
getattr, req, 'timestamp')
def test_timestamp_invalid(self):
req = swob.Request.blank(
'/', headers={'X-Timestamp': 'asdf'})
self.assertRaises(exceptions.InvalidTimestamp,
getattr, req, 'timestamp')
def test_timestamp(self):
req = swob.Request.blank(
'/', headers={'X-Timestamp': '1402447134.13507_00000001'})
expected = utils.Timestamp('1402447134.13507', offset=1)
self.assertEqual(req.timestamp, expected)
self.assertEqual(req.timestamp.normal, expected.normal)
self.assertEqual(req.timestamp.internal, expected.internal)
def test_path(self):
req = swob.Request.blank('/hi?a=b&c=d')
self.assertEqual(req.path, '/hi')
req = swob.Request.blank(
'/', environ={'SCRIPT_NAME': '/hi', 'PATH_INFO': '/there'})
self.assertEqual(req.path, '/hi/there')
def test_path_question_mark(self):
req = swob.Request.blank('/test%3Ffile')
# This tests that .blank unquotes the path when setting PATH_INFO
self.assertEqual(req.environ['PATH_INFO'], '/test?file')
# This tests that .path requotes it
self.assertEqual(req.path, '/test%3Ffile')
def test_path_info_pop(self):
req = swob.Request.blank('/hi/there')
self.assertEqual(req.path_info_pop(), 'hi')
self.assertEqual(req.path_info, '/there')
self.assertEqual(req.script_name, '/hi')
def test_bad_path_info_pop(self):
req = swob.Request.blank('blahblah')
self.assertIsNone(req.path_info_pop())
def test_path_info_pop_last(self):
req = swob.Request.blank('/last')
self.assertEqual(req.path_info_pop(), 'last')
self.assertEqual(req.path_info, '')
self.assertEqual(req.script_name, '/last')
def test_path_info_pop_none(self):
req = swob.Request.blank('/')
self.assertEqual(req.path_info_pop(), '')
self.assertEqual(req.path_info, '')
self.assertEqual(req.script_name, '/')
def test_copy_get(self):
req = swob.Request.blank(
'/hi/there', environ={'REQUEST_METHOD': 'POST'})
self.assertEqual(req.method, 'POST')
req2 = req.copy_get()
self.assertEqual(req2.method, 'GET')
def test_get_response(self):
def test_app(environ, start_response):
start_response('200 OK', [])
return [b'hi']
req = swob.Request.blank('/')
resp = req.get_response(test_app)
self.assertEqual(resp.status_int, 200)
self.assertEqual(resp.body, b'hi')
def test_401_unauthorized(self):
# No request environment
resp = swob.HTTPUnauthorized()
self.assertEqual(resp.status_int, 401)
self.assertTrue('Www-Authenticate' in resp.headers)
# Request environment
req = swob.Request.blank('/')
resp = swob.HTTPUnauthorized(request=req)
self.assertEqual(resp.status_int, 401)
self.assertTrue('Www-Authenticate' in resp.headers)
def test_401_valid_account_path(self):
def test_app(environ, start_response):
start_response('401 Unauthorized', [])
return [b'hi']
# Request environment contains valid account in path
req = swob.Request.blank('/v1/account-name')
resp = req.get_response(test_app)
self.assertEqual(resp.status_int, 401)
self.assertTrue('Www-Authenticate' in resp.headers)
self.assertEqual('Swift realm="account-name"',
resp.headers['Www-Authenticate'])
# Request environment contains valid account/container in path
req = swob.Request.blank('/v1/account-name/c')
resp = req.get_response(test_app)
self.assertEqual(resp.status_int, 401)
self.assertTrue('Www-Authenticate' in resp.headers)
self.assertEqual('Swift realm="account-name"',
resp.headers['Www-Authenticate'])
def test_401_invalid_path(self):
def test_app(environ, start_response):
start_response('401 Unauthorized', [])
return [b'hi']
# Request environment contains bad path
req = swob.Request.blank('/random')
resp = req.get_response(test_app)
self.assertEqual(resp.status_int, 401)
self.assertTrue('Www-Authenticate' in resp.headers)
self.assertEqual('Swift realm="unknown"',
resp.headers['Www-Authenticate'])
def test_401_non_keystone_auth_path(self):
def test_app(environ, start_response):
start_response('401 Unauthorized', [])
return [b'no creds in request']
# Request to get token
req = swob.Request.blank('/v1.0/auth')
resp = req.get_response(test_app)
self.assertEqual(resp.status_int, 401)
self.assertTrue('Www-Authenticate' in resp.headers)
self.assertEqual('Swift realm="unknown"',
resp.headers['Www-Authenticate'])
# Other form of path
req = swob.Request.blank('/auth/v1.0')
resp = req.get_response(test_app)
self.assertEqual(resp.status_int, 401)
self.assertTrue('Www-Authenticate' in resp.headers)
self.assertEqual('Swift realm="unknown"',
resp.headers['Www-Authenticate'])
def test_401_www_authenticate_exists(self):
def test_app(environ, start_response):
start_response('401 Unauthorized', {
'Www-Authenticate': 'Me realm="whatever"'})
return [b'no creds in request']
# Auth middleware sets own Www-Authenticate
req = swob.Request.blank('/auth/v1.0')
resp = req.get_response(test_app)
self.assertEqual(resp.status_int, 401)
self.assertTrue('Www-Authenticate' in resp.headers)
self.assertEqual('Me realm="whatever"',
resp.headers['Www-Authenticate'])
def test_401_www_authenticate_is_quoted(self):
def test_app(environ, start_response):
start_response('401 Unauthorized', [])
return [b'hi']
hacker = 'account-name\n\n<b>foo<br>' # url injection test
quoted_hacker = quote(hacker)
req = swob.Request.blank('/v1/' + quoted_hacker)
self.assertIn(hacker, req.environ['PATH_INFO']) # sanity check
resp = req.get_response(test_app)
self.assertEqual(resp.status_int, 401)
self.assertTrue('Www-Authenticate' in resp.headers)
self.assertEqual('Swift realm="%s"' % quoted_hacker,
resp.headers['Www-Authenticate'])
def test_not_401(self):
# Other status codes should not have WWW-Authenticate in response
def test_app(environ, start_response):
start_response('200 OK', [])
return [b'hi']
req = swob.Request.blank('/')
resp = req.get_response(test_app)
self.assertNotIn('Www-Authenticate', resp.headers)
def test_properties(self):
req = swob.Request.blank('/hi/there', body='hi')
self.assertEqual(req.body, b'hi')
self.assertEqual(req.content_length, 2)
req.remote_addr = 'something'
self.assertEqual(req.environ['REMOTE_ADDR'], 'something')
req.body = 'whatever'
self.assertEqual(req.content_length, 8)
self.assertEqual(req.body, b'whatever')
self.assertEqual(req.method, 'GET')
req.range = 'bytes=1-7'
self.assertEqual(req.range.ranges[0], (1, 7))
self.assertIn('Range', req.headers)
req.range = None
self.assertNotIn('Range', req.headers)
def test_datetime_properties(self):
req = swob.Request.blank('/hi/there', body='hi')
req.if_unmodified_since = 0
self.assertTrue(isinstance(req.if_unmodified_since, datetime.datetime))
if_unmodified_since = req.if_unmodified_since
req.if_unmodified_since = if_unmodified_since
self.assertEqual(if_unmodified_since, req.if_unmodified_since)
req.if_unmodified_since = 'something'
self.assertEqual(req.headers['If-Unmodified-Since'], 'something')
self.assertIsNone(req.if_unmodified_since)
self.assertIn('If-Unmodified-Since', req.headers)
req.if_unmodified_since = None
self.assertNotIn('If-Unmodified-Since', req.headers)
too_big_date_list = list(datetime.datetime.max.timetuple())
too_big_date_list[0] += 1 # bump up the year
too_big_date = time.strftime(
"%a, %d %b %Y %H:%M:%S UTC", time.struct_time(too_big_date_list))
req.if_unmodified_since = too_big_date
self.assertIsNone(req.if_unmodified_since)
def test_bad_range(self):
req = swob.Request.blank('/hi/there', body='hi')
req.range = 'bad range'
self.assertIsNone(req.range)
def test_accept_header(self):
req = swob.Request({'REQUEST_METHOD': 'GET',
'PATH_INFO': '/',
'HTTP_ACCEPT': 'application/json'})
self.assertEqual(
req.accept.best_match(['application/json', 'text/plain']),
'application/json')
self.assertEqual(
req.accept.best_match(['text/plain', 'application/json']),
'application/json')
def test_swift_entity_path(self):
req = swob.Request.blank('/v1/a/c/o')
self.assertEqual(req.swift_entity_path, '/a/c/o')
req = swob.Request.blank('/v1/a/c')
self.assertEqual(req.swift_entity_path, '/a/c')
req = swob.Request.blank('/v1/a')
self.assertEqual(req.swift_entity_path, '/a')
req = swob.Request.blank('/v1')
self.assertIsNone(req.swift_entity_path)
def test_path_qs(self):
req = swob.Request.blank('/hi/there?hello=equal&acl')
self.assertEqual(req.path_qs, '/hi/there?hello=equal&acl')
req = swob.Request({'PATH_INFO': '/hi/there',
'QUERY_STRING': 'hello=equal&acl'})
self.assertEqual(req.path_qs, '/hi/there?hello=equal&acl')
def test_url(self):
req = swob.Request.blank('/hi/there?hello=equal&acl')
self.assertEqual(req.url,
'http://localhost/hi/there?hello=equal&acl')
def test_wsgify(self):
used_req = []
@swob.wsgify
def _wsgi_func(req):
used_req.append(req)
return swob.Response(b'200 OK')
req = swob.Request.blank('/hi/there')
resp = req.get_response(_wsgi_func)
self.assertEqual(used_req[0].path, '/hi/there')
self.assertEqual(resp.status_int, 200)
def test_wsgify_method(self):
class _wsgi_class(object):
def __init__(self):
self.used_req = []
@swob.wsgify
def __call__(self, req):
self.used_req.append(req)
return swob.Response(b'200 OK')
req = swob.Request.blank('/hi/there')
handler = _wsgi_class()
resp = req.get_response(handler)
self.assertIs(handler.used_req[0].environ, req.environ)
self.assertEqual(resp.status_int, 200)
def test_wsgify_raise(self):
used_req = []
@swob.wsgify
def _wsgi_func(req):
used_req.append(req)
raise swob.HTTPServerError()
req = swob.Request.blank('/hi/there')
resp = req.get_response(_wsgi_func)
self.assertEqual(used_req[0].path, '/hi/there')
self.assertEqual(resp.status_int, 500)
def test_split_path(self):
"""
Copied from utils.split_path
"""
def _test_split_path(path, minsegs=1, maxsegs=None, rwl=False):
req = swob.Request.blank(path)
return req.split_path(minsegs, maxsegs, rwl)
self.assertRaises(ValueError, _test_split_path, '')
self.assertRaises(ValueError, _test_split_path, '/')
self.assertRaises(ValueError, _test_split_path, '//')
self.assertEqual(_test_split_path('/a'), ['a'])
self.assertRaises(ValueError, _test_split_path, '//a')
self.assertEqual(_test_split_path('/a/'), ['a'])
self.assertRaises(ValueError, _test_split_path, '/a/c')
self.assertRaises(ValueError, _test_split_path, '//c')
self.assertRaises(ValueError, _test_split_path, '/a/c/')
self.assertRaises(ValueError, _test_split_path, '/a//')
self.assertRaises(ValueError, _test_split_path, '/a', 2)
self.assertRaises(ValueError, _test_split_path, '/a', 2, 3)
self.assertRaises(ValueError, _test_split_path, '/a', 2, 3, True)
self.assertEqual(_test_split_path('/a/c', 2), ['a', 'c'])
self.assertEqual(_test_split_path('/a/c/o', 3), ['a', 'c', 'o'])
self.assertRaises(ValueError, _test_split_path, '/a/c/o/r', 3, 3)
self.assertEqual(_test_split_path('/a/c/o/r', 3, 3, True),
['a', 'c', 'o/r'])
self.assertEqual(_test_split_path('/a/c', 2, 3, True),
['a', 'c', None])
self.assertRaises(ValueError, _test_split_path, '/a', 5, 4)
self.assertEqual(_test_split_path('/a/c/', 2), ['a', 'c'])
self.assertEqual(_test_split_path('/a/c/', 2, 3), ['a', 'c', ''])
try:
_test_split_path('o%0an e', 2)
except ValueError as err:
self.assertEqual(str(err), 'Invalid path: o%0An%20e')
try:
_test_split_path('o%0an e', 2, 3, True)
except ValueError as err:
self.assertEqual(str(err), 'Invalid path: o%0An%20e')
def test_unicode_path(self):
# Byte sequences always make sense
req = swob.Request.blank(u'/\u2661'.encode('utf8'))
self.assertEqual(req.path, quote(u'/\u2661'.encode('utf-8')))
self.assertEqual(req.environ['PATH_INFO'], '/\xe2\x99\xa1')
req = swob.Request.blank('/')
req.path_info = u'/\u2661'.encode('utf8')
self.assertEqual(req.path, quote(u'/\u2661'.encode('utf-8')))
self.assertEqual(req.environ['PATH_INFO'], '/\xe2\x99\xa1')
if six.PY2:
# Unicode is encoded to UTF-8 on py2, to paper over deserialized
# JSON slipping into subrequests
req = swob.Request.blank(u'/\u2661')
self.assertEqual(req.path, quote(u'/\u2661'.encode('utf-8')))
self.assertEqual(req.environ['PATH_INFO'], '/\xe2\x99\xa1')
req = swob.Request.blank('/')
req.path_info = u'/\u2661'
self.assertEqual(req.path, quote(u'/\u2661'.encode('utf-8')))
self.assertEqual(req.environ['PATH_INFO'], '/\xe2\x99\xa1')
else:
# Arbitrary Unicode *is not* supported on py3 -- only latin-1
# encodable is supported, because PEP-3333.
with self.assertRaises(UnicodeEncodeError):
req = swob.Request.blank(u'/\u2661')
req = swob.Request.blank('/')
with self.assertRaises(UnicodeEncodeError):
req.path_info = u'/\u2661'
# Update didn't take
self.assertEqual(req.path, '/')
self.assertEqual(req.environ['PATH_INFO'], '/')
# Needs to be a "WSGI string"
req = swob.Request.blank('/\xe2\x99\xa1')
self.assertEqual(req.path, quote(u'/\u2661'.encode('utf-8')))
self.assertEqual(req.environ['PATH_INFO'], '/\xe2\x99\xa1')
req = swob.Request.blank('/')
req.path_info = '/\xe2\x99\xa1'
self.assertEqual(req.path, quote(u'/\u2661'.encode('utf-8')))
self.assertEqual(req.environ['PATH_INFO'], '/\xe2\x99\xa1')
def test_unicode_query(self):
# Bytes are always OK
req = swob.Request.blank('/')
encoded = u'\u2661'.encode('utf-8')
req.query_string = b'x=' + encoded
if six.PY2:
self.assertEqual(req.params['x'], encoded)
else:
self.assertEqual(req.params['x'], encoded.decode('latin1'))
if six.PY2:
# Unicode will be UTF-8-encoded on py2
req = swob.Request.blank('/')
req.query_string = u'x=\u2661'
self.assertEqual(req.params['x'], encoded)
else:
# ...but py3 requires "WSGI strings"
req = swob.Request.blank('/')
with self.assertRaises(UnicodeEncodeError):
req.query_string = u'x=\u2661'
self.assertEqual(req.params, {})
req = swob.Request.blank('/')
req.query_string = 'x=' + encoded.decode('latin-1')
self.assertEqual(req.params['x'], encoded.decode('latin-1'))
def test_url2(self):
pi = '/hi/there'
path = pi
req = swob.Request.blank(path)
sche = 'http'
exp_url = '%s://localhost%s' % (sche, pi)
self.assertEqual(req.url, exp_url)
qs = 'hello=equal&acl'
path = '%s?%s' % (pi, qs)
s, p = 'unit.test.example.com', '90'
req = swob.Request({'PATH_INFO': pi,
'QUERY_STRING': qs,
'SERVER_NAME': s,
'SERVER_PORT': p})
exp_url = '%s://%s:%s%s?%s' % (sche, s, p, pi, qs)
self.assertEqual(req.url, exp_url)
host = 'unit.test.example.com'
req = swob.Request({'PATH_INFO': pi,
'QUERY_STRING': qs,
'HTTP_HOST': host + ':80'})
exp_url = '%s://%s%s?%s' % (sche, host, pi, qs)
self.assertEqual(req.url, exp_url)
host = 'unit.test.example.com'
sche = 'https'
req = swob.Request({'PATH_INFO': pi,
'QUERY_STRING': qs,
'HTTP_HOST': host + ':443',
'wsgi.url_scheme': sche})
exp_url = '%s://%s%s?%s' % (sche, host, pi, qs)
self.assertEqual(req.url, exp_url)
host = 'unit.test.example.com:81'
req = swob.Request({'PATH_INFO': pi,
'QUERY_STRING': qs,
'HTTP_HOST': host,
'wsgi.url_scheme': sche})
exp_url = '%s://%s%s?%s' % (sche, host, pi, qs)
self.assertEqual(req.url, exp_url)
def test_as_referer(self):
pi = '/hi/there'
qs = 'hello=equal&acl'
sche = 'https'
host = 'unit.test.example.com:81'
req = swob.Request({'REQUEST_METHOD': 'POST',
'PATH_INFO': pi,
'QUERY_STRING': qs,
'HTTP_HOST': host,
'wsgi.url_scheme': sche})
exp_url = '%s://%s%s?%s' % (sche, host, pi, qs)
self.assertEqual(req.as_referer(), 'POST ' + exp_url)
def test_message_length_just_content_length(self):
req = swob.Request.blank(
u'/',
environ={'REQUEST_METHOD': 'PUT', 'PATH_INFO': '/'})
self.assertIsNone(req.message_length())
req = swob.Request.blank(
u'/',
environ={'REQUEST_METHOD': 'PUT', 'PATH_INFO': '/'},
body='x' * 42)
self.assertEqual(req.message_length(), 42)
req.headers['Content-Length'] = 'abc'
try:
req.message_length()
except ValueError as e:
self.assertEqual(str(e), "Invalid Content-Length header value")
else:
self.fail("Expected a ValueError raised for 'abc'")
def test_message_length_transfer_encoding(self):
req = swob.Request.blank(
u'/',
environ={'REQUEST_METHOD': 'PUT', 'PATH_INFO': '/'},
headers={'transfer-encoding': 'chunked'},
body='x' * 42)
self.assertIsNone(req.message_length())
req.headers['Transfer-Encoding'] = 'gzip,chunked'
try:
req.message_length()
except AttributeError as e:
self.assertEqual(str(e), "Unsupported Transfer-Coding header"
" value specified in Transfer-Encoding header")
else:
self.fail("Expected an AttributeError raised for 'gzip'")
req.headers['Transfer-Encoding'] = 'gzip'
try:
req.message_length()
except ValueError as e:
self.assertEqual(str(e), "Invalid Transfer-Encoding header value")
else:
self.fail("Expected a ValueError raised for 'gzip'")
req.headers['Transfer-Encoding'] = 'gzip,identity'
try:
req.message_length()
except AttributeError as e:
self.assertEqual(str(e), "Unsupported Transfer-Coding header"
" value specified in Transfer-Encoding header")
else:
self.fail("Expected an AttributeError raised for 'gzip,identity'")
def test_allow_reserved_names(self):
req = swob.Request.blank('', headers={})
self.assertFalse(req.allow_reserved_names)
req = swob.Request.blank('', headers={
'X-Allow-Reserved-Names': 'true'})
self.assertFalse(req.allow_reserved_names)
req = swob.Request.blank('', headers={
'X-Backend-Allow-Reserved-Names': 'false'})
self.assertFalse(req.allow_reserved_names)
req = swob.Request.blank('', headers={
'X-Backend-Allow-Reserved-Names': 'true'})
self.assertTrue(req.allow_reserved_names)
class TestStatusMap(unittest.TestCase):
def test_status_map(self):
response_args = []
def start_response(status, headers):
response_args.append(status)
response_args.append(headers)
resp_cls = swob.status_map[404]
resp = resp_cls()
self.assertEqual(resp.status_int, 404)
self.assertEqual(resp.title, 'Not Found')
body = b''.join(resp({}, start_response))
self.assertIn(b'The resource could not be found.', body)
self.assertEqual(response_args[0], '404 Not Found')
headers = dict(response_args[1])
self.assertEqual(headers['Content-Type'], 'text/html; charset=UTF-8')
self.assertTrue(int(headers['Content-Length']) > 0)
class TestResponse(unittest.TestCase):
def _get_response(self):
def test_app(environ, start_response):
start_response('200 OK', [])
return [b'hi']
req = swob.Request.blank('/')
return req.get_response(test_app)
def test_properties(self):
resp = self._get_response()
resp.location = 'something'
self.assertEqual(resp.location, 'something')
self.assertIn('Location', resp.headers)
resp.location = None
self.assertNotIn('Location', resp.headers)
resp.content_type = 'text/plain'
self.assertIn('Content-Type', resp.headers)
resp.content_type = None
self.assertNotIn('Content-Type', resp.headers)
def test_empty_body(self):
resp = self._get_response()
resp.body = b''
self.assertEqual(resp.body, b'')
def test_unicode_body(self):
resp = self._get_response()
with self.assertRaises(TypeError) as catcher:
resp.body = u'\N{SNOWMAN}'
self.assertEqual(str(catcher.exception),
'WSGI responses must be bytes')
def test_call_reifies_request_if_necessary(self):
"""
The actual bug was a HEAD response coming out with a body because the
Request object wasn't passed into the Response object's constructor.
The Response object's __call__ method should be able to reify a
Request object from the env it gets passed.
"""
tracking = {
'closed': 0,
'read': 0,
}
def mark_closed(*args):
tracking['closed'] += 1
def mark_read(*args):
tracking['read'] += 1
def test_app(environ, start_response):
start_response('200 OK', [])
body = [b'hi']
return LeakTrackingIter(body, mark_closed, mark_read, None)
req = swob.Request.blank('/')
req.method = 'HEAD'
status, headers, app_iter = req.call_application(test_app)
resp = swob.Response(status=status, headers=dict(headers),
app_iter=app_iter)
output_iter = resp(req.environ, lambda *_: None)
with utils.closing_if_possible(output_iter):
body = b''.join(output_iter)
self.assertEqual(body, b'')
self.assertEqual(tracking, {
'closed': 1,
'read': 1,
})
def test_swob_drains_small_HEAD_resp_iter(self):
tracking = {
'closed': 0,
'read': 0,
}
def mark_closed(*args):
tracking['closed'] += 1
def mark_read(*args):
tracking['read'] += 1
def test_app(environ, start_response):
start_response('200 OK', [])
body = [b'hello', b'world']
return LeakTrackingIter(body, mark_closed, mark_read, None)
req = swob.Request.blank('/', method='HEAD')
status, headers, app_iter = req.call_application(test_app)
resp = swob.Response(status=status, headers=dict(headers),
app_iter=app_iter)
# sanity, swob drains small HEAD responses
output_iter = resp(req.environ, lambda *_: None)
with utils.closing_if_possible(output_iter):
# regardless what the app returns swob's HEAD response is empty
body = b''.join(output_iter)
self.assertEqual(body, b'')
self.assertEqual(tracking, {
'closed': 1,
'read': 1,
})
def test_swob_closes_large_HEAD_resp_iter(self):
tracking = {
'closed': 0,
'read': 0,
}
def mark_closed(*args):
tracking['closed'] += 1
def mark_read(*args):
tracking['read'] += 1
def test_app(environ, start_response):
start_response('200 OK', [])
body = [b'hello', b'world']
return LeakTrackingIter(body, mark_closed, mark_read, None)
req = swob.Request.blank('/', method='HEAD')
status, headers, app_iter = req.call_application(test_app)
resp = swob.Response(status=status, headers=dict(headers),
app_iter=app_iter)
# N.B. if we call next a third time (i.e. len(helloworld) < read_limit)
# then leak tracker will notice StopIteration and count it drained.
with mock.patch.object(utils, 'DEFAULT_DRAIN_LIMIT', 10):
output_iter = resp(req.environ, lambda *_: None)
with utils.closing_if_possible(output_iter):
# regardless what the app returns swob's HEAD response is empty
body = b''.join(output_iter)
self.assertEqual(body, b'')
self.assertEqual(tracking, {
'closed': 1,
'read': 0,
})
def test_call_preserves_closeability(self):
def test_app(environ, start_response):
start_response('200 OK', [])
yield "igloo"
yield "shindig"
yield "macadamia"
yield "hullabaloo"
req = swob.Request.blank('/')
req.method = 'GET'
status, headers, app_iter = req.call_application(test_app)
iterator = iter(app_iter)
self.assertEqual('igloo', next(iterator))
self.assertEqual('shindig', next(iterator))
app_iter.close()
with self.assertRaises(StopIteration):
next(iterator)
def test_call_finds_nonempty_chunk(self):
def test_app(environ, start_response):
start_response('400 Bad Request', [])
yield ''
start_response('200 OK', [])
yield 'complete '
yield ''
yield 'response'
req = swob.Request.blank('/')
req.method = 'GET'
status, headers, app_iter = req.call_application(test_app)
self.assertEqual(status, '200 OK')
self.assertEqual(list(app_iter), ['complete ', '', 'response'])
def test_call_requires_that_start_response_is_called(self):
def test_app(environ, start_response):
yield 'response'
req = swob.Request.blank('/')
req.method = 'GET'
with self.assertRaises(RuntimeError) as mgr:
req.call_application(test_app)
self.assertEqual(mgr.exception.args[0],
'application never called start_response')
def test_location_rewrite(self):
def start_response(env, headers):
pass
req = swob.Request.blank(
'/', environ={'HTTP_HOST': 'somehost'})
resp = self._get_response()
resp.location = '/something'
# read response
b''.join(resp(req.environ, start_response))
self.assertEqual(resp.location, 'http://somehost/something')
req = swob.Request.blank(
'/', environ={'HTTP_HOST': 'somehost:80'})
resp = self._get_response()
resp.location = '/something'
# read response
b''.join(resp(req.environ, start_response))
self.assertEqual(resp.location, 'http://somehost/something')
req = swob.Request.blank(
'/', environ={'HTTP_HOST': 'somehost:443',
'wsgi.url_scheme': 'http'})
resp = self._get_response()
resp.location = '/something'
# read response
b''.join(resp(req.environ, start_response))
self.assertEqual(resp.location, 'http://somehost:443/something')
req = swob.Request.blank(
'/', environ={'HTTP_HOST': 'somehost:443',
'wsgi.url_scheme': 'https'})
resp = self._get_response()
resp.location = '/something'
# read response
b''.join(resp(req.environ, start_response))
self.assertEqual(resp.location, 'https://somehost/something')
def test_location_rewrite_no_host(self):
def start_response(env, headers):
pass
req = swob.Request.blank(
'/', environ={'SERVER_NAME': 'local', 'SERVER_PORT': 80})
del req.environ['HTTP_HOST']
resp = self._get_response()
resp.location = '/something'
# read response
b''.join(resp(req.environ, start_response))
self.assertEqual(resp.location, 'http://local/something')
req = swob.Request.blank(
'/', environ={'SERVER_NAME': 'local', 'SERVER_PORT': 81})
del req.environ['HTTP_HOST']
resp = self._get_response()
resp.location = '/something'
# read response
b''.join(resp(req.environ, start_response))
self.assertEqual(resp.location, 'http://local:81/something')
def test_location_no_rewrite(self):
def start_response(env, headers):
pass
req = swob.Request.blank(
'/', environ={'HTTP_HOST': 'somehost'})
resp = self._get_response()
resp.location = 'http://www.google.com/'
# read response
b''.join(resp(req.environ, start_response))
self.assertEqual(resp.location, 'http://www.google.com/')
def test_location_no_rewrite_when_told_not_to(self):
def start_response(env, headers):
pass
req = swob.Request.blank(
'/', environ={'SERVER_NAME': 'local', 'SERVER_PORT': 81,
'swift.leave_relative_location': True})
del req.environ['HTTP_HOST']
resp = self._get_response()
resp.location = '/something'
# read response
b''.join(resp(req.environ, start_response))
self.assertEqual(resp.location, '/something')
def test_app_iter(self):
def start_response(env, headers):
pass
resp = self._get_response()
resp.app_iter = [b'a', b'b', b'c']
body = b''.join(resp({}, start_response))
self.assertEqual(body, b'abc')
def test_multi_ranges_wo_iter_ranges(self):
def test_app(environ, start_response):
start_response('200 OK', [('Content-Length', '10')])
return [b'1234567890']
req = swob.Request.blank(
'/', headers={'Range': 'bytes=0-9,10-19,20-29'})
resp = req.get_response(test_app)
resp.conditional_response = True
resp.content_length = 10
# read response
b''.join(resp._response_iter(resp.app_iter, b''))
self.assertEqual(resp.status, '200 OK')
self.assertEqual(10, resp.content_length)
def test_single_range_wo_iter_range(self):
def test_app(environ, start_response):
start_response('200 OK', [('Content-Length', '10')])
return [b'1234567890']
req = swob.Request.blank(
'/', headers={'Range': 'bytes=0-9'})
resp = req.get_response(test_app)
resp.conditional_response = True
resp.content_length = 10
# read response
b''.join(resp._response_iter(resp.app_iter, b''))
self.assertEqual(resp.status, '200 OK')
self.assertEqual(10, resp.content_length)
def test_multi_range_body(self):
def test_app(environ, start_response):
start_response('200 OK', [('Content-Length', '4')])
return [b'abcd']
req = swob.Request.blank(
'/', headers={'Range': 'bytes=0-9,10-19,20-29'})
resp = req.get_response(test_app)
resp.conditional_response = True
resp.content_length = 100
resp.content_type = 'text/plain; charset=utf8'
content = b''.join(resp._response_iter(None,
(b'0123456789112345678'
b'92123456789')))
self.assertTrue(re.match(br'--([a-f0-9]{32})\r\n'
br'Content-Type: text/plain; charset=utf8\r\n'
br'Content-Range: bytes '
br'0-9/100\r\n\r\n0123456789\r\n'
br'--\1\r\n'
br'Content-Type: text/plain; charset=utf8\r\n'
br'Content-Range: bytes '
br'10-19/100\r\n\r\n1123456789\r\n'
br'--\1\r\n'
br'Content-Type: text/plain; charset=utf8\r\n'
br'Content-Range: bytes '
br'20-29/100\r\n\r\n2123456789\r\n'
br'--\1--', content))
def test_multi_response_iter(self):
def test_app(environ, start_response):
start_response('200 OK', [('Content-Length', '10'),
('Content-Type', 'application/xml')])
return [b'0123456789']
app_iter_ranges_args = []
class App_iter(object):
def app_iter_ranges(self, ranges, content_type, boundary, size):
app_iter_ranges_args.append((ranges, content_type, boundary,
size))
for i in range(3):
yield (str(i) + 'fun').encode('ascii')
yield boundary
def __iter__(self):
for i in range(3):
yield (str(i) + 'fun').encode('ascii')
req = swob.Request.blank(
'/', headers={'Range': 'bytes=1-5,8-11'})
resp = req.get_response(test_app)
resp.conditional_response = True
resp.content_length = 12
content = b''.join(resp._response_iter(App_iter(), b''))
boundary = content[-32:]
self.assertEqual(content[:-32], b'0fun1fun2fun')
self.assertEqual(app_iter_ranges_args,
[([(1, 6), (8, 12)], b'application/xml',
boundary, 12)])
def test_range_body(self):
def test_app(environ, start_response):
start_response('200 OK', [('Content-Length', '10')])
return [b'1234567890']
def start_response(env, headers):
pass
req = swob.Request.blank(
'/', headers={'Range': 'bytes=1-3'})
resp = swob.Response(
body=b'1234567890', request=req,
conditional_response=True)
body = b''.join(resp({}, start_response))
self.assertEqual(body, b'234')
self.assertEqual(resp.content_range, 'bytes 1-3/10')
self.assertEqual(resp.status, '206 Partial Content')
# syntactically valid, but does not make sense, so returning 416
# in next couple of cases.
req = swob.Request.blank(
'/', headers={'Range': 'bytes=-0'})
resp = req.get_response(test_app)
resp.conditional_response = True
body = b''.join(resp({}, start_response))
self.assertIn(b'The Range requested is not available', body)
self.assertEqual(resp.content_length, len(body))
self.assertEqual(resp.status, '416 Requested Range Not Satisfiable')
self.assertEqual(resp.content_range, 'bytes */10')
resp = swob.Response(
body=b'1234567890', request=req,
conditional_response=True)
body = b''.join(resp({}, start_response))
self.assertIn(b'The Range requested is not available', body)
self.assertEqual(resp.content_length, len(body))
self.assertEqual(resp.status, '416 Requested Range Not Satisfiable')
# Syntactically-invalid Range headers "MUST" be ignored
req = swob.Request.blank(
'/', headers={'Range': 'bytes=3-2'})
resp = req.get_response(test_app)
resp.conditional_response = True
body = b''.join(resp({}, start_response))
self.assertEqual(body, b'1234567890')
self.assertEqual(resp.status, '200 OK')
self.assertNotIn('Content-Range', resp.headers)
resp = swob.Response(
body=b'1234567890', request=req,
conditional_response=True)
body = b''.join(resp({}, start_response))
self.assertEqual(body, b'1234567890')
self.assertEqual(resp.status, '200 OK')
def test_content_type(self):
resp = self._get_response()
resp.content_type = 'text/plain; charset=utf8'
self.assertEqual(resp.content_type, 'text/plain')
def test_charset(self):
resp = self._get_response()
resp.content_type = 'text/plain; charset=utf8'
self.assertEqual(resp.charset, 'utf8')
resp.charset = 'utf16'
self.assertEqual(resp.charset, 'utf16')
def test_charset_content_type(self):
resp = swob.Response(
content_type='text/plain', charset='utf-8')
self.assertEqual(resp.charset, 'utf-8')
resp = swob.Response(
charset='utf-8', content_type='text/plain')
self.assertEqual(resp.charset, 'utf-8')
def test_etag(self):
resp = self._get_response()
resp.etag = 'hi'
self.assertEqual(resp.headers['Etag'], '"hi"')
self.assertEqual(resp.etag, 'hi')
self.assertIn('etag', resp.headers)
resp.etag = None
self.assertNotIn('etag', resp.headers)
def test_host_url_default(self):
resp = self._get_response()
env = resp.environ
env['wsgi.url_scheme'] = 'http'
env['SERVER_NAME'] = 'bob'
env['SERVER_PORT'] = '1234'
del env['HTTP_HOST']
self.assertEqual(resp.host_url, 'http://bob:1234')
def test_host_url_default_port_squelched(self):
resp = self._get_response()
env = resp.environ
env['wsgi.url_scheme'] = 'http'
env['SERVER_NAME'] = 'bob'
env['SERVER_PORT'] = '80'
del env['HTTP_HOST']
self.assertEqual(resp.host_url, 'http://bob')
def test_host_url_https(self):
resp = self._get_response()
env = resp.environ
env['wsgi.url_scheme'] = 'https'
env['SERVER_NAME'] = 'bob'
env['SERVER_PORT'] = '1234'
del env['HTTP_HOST']
self.assertEqual(resp.host_url, 'https://bob:1234')
def test_host_url_https_port_squelched(self):
resp = self._get_response()
env = resp.environ
env['wsgi.url_scheme'] = 'https'
env['SERVER_NAME'] = 'bob'
env['SERVER_PORT'] = '443'
del env['HTTP_HOST']
self.assertEqual(resp.host_url, 'https://bob')
def test_host_url_host_override(self):
resp = self._get_response()
env = resp.environ
env['wsgi.url_scheme'] = 'http'
env['SERVER_NAME'] = 'bob'
env['SERVER_PORT'] = '1234'
env['HTTP_HOST'] = 'someother'
self.assertEqual(resp.host_url, 'http://someother')
def test_host_url_host_port_override(self):
resp = self._get_response()
env = resp.environ
env['wsgi.url_scheme'] = 'http'
env['SERVER_NAME'] = 'bob'
env['SERVER_PORT'] = '1234'
env['HTTP_HOST'] = 'someother:5678'
self.assertEqual(resp.host_url, 'http://someother:5678')
def test_host_url_host_https(self):
resp = self._get_response()
env = resp.environ
env['wsgi.url_scheme'] = 'https'
env['SERVER_NAME'] = 'bob'
env['SERVER_PORT'] = '1234'
env['HTTP_HOST'] = 'someother:5678'
self.assertEqual(resp.host_url, 'https://someother:5678')
def test_507(self):
resp = swob.HTTPInsufficientStorage()
content = b''.join(resp._response_iter(resp.app_iter, resp._body))
self.assertEqual(
content,
b'<html><h1>Insufficient Storage</h1><p>There was not enough '
b'space to save the resource. Drive: unknown</p></html>')
resp = swob.HTTPInsufficientStorage(drive='sda1')
content = b''.join(resp._response_iter(resp.app_iter, resp._body))
self.assertEqual(
content,
b'<html><h1>Insufficient Storage</h1><p>There was not enough '
b'space to save the resource. Drive: sda1</p></html>')
def test_200_with_body_and_headers(self):
headers = {'Content-Length': '0'}
content = b'foo'
resp = swob.HTTPOk(body=content, headers=headers)
self.assertEqual(resp.body, content)
self.assertEqual(resp.content_length, len(content))
def test_init_with_body_headers_app_iter(self):
# body exists but no headers and no app_iter
body = b'ok'
resp = swob.Response(body=body)
self.assertEqual(resp.body, body)
self.assertEqual(resp.content_length, len(body))
# body and headers with 0 content_length exist but no app_iter
body = b'ok'
resp = swob.Response(
body=body, headers={'Content-Length': '0'})
self.assertEqual(resp.body, body)
self.assertEqual(resp.content_length, len(body))
# body and headers with content_length exist but no app_iter
body = b'ok'
resp = swob.Response(
body=body, headers={'Content-Length': '5'})
self.assertEqual(resp.body, body)
self.assertEqual(resp.content_length, len(body))
# body and headers with no content_length exist but no app_iter
body = b'ok'
resp = swob.Response(body=body, headers={})
self.assertEqual(resp.body, body)
self.assertEqual(resp.content_length, len(body))
# body, headers with content_length and app_iter exist
resp = swob.Response(
body=b'ok', headers={'Content-Length': '5'}, app_iter=iter([]))
self.assertEqual(resp.content_length, 5)
self.assertEqual(resp.body, b'')
# headers with content_length and app_iter exist but no body
resp = swob.Response(
headers={'Content-Length': '5'}, app_iter=iter([]))
self.assertEqual(resp.content_length, 5)
self.assertEqual(resp.body, b'')
# app_iter exists but no body and headers
resp = swob.Response(app_iter=iter([]))
self.assertIsNone(resp.content_length)
self.assertEqual(resp.body, b'')
class TestConditionalIfNoneMatch(unittest.TestCase):
def fake_app(self, environ, start_response):
start_response('200 OK', [('Etag', 'the-etag')])
return [b'hi']
def fake_start_response(*a, **kw):
pass
def test_simple_match(self):
# etag matches --> 304
req = swob.Request.blank(
'/', headers={'If-None-Match': 'the-etag'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 304)
self.assertEqual(body, b'')
def test_quoted_simple_match(self):
# double quotes don't matter
req = swob.Request.blank(
'/', headers={'If-None-Match': '"the-etag"'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 304)
self.assertEqual(body, b'')
def test_list_match(self):
# it works with lists of etags to match
req = swob.Request.blank(
'/', headers={'If-None-Match': '"bert", "the-etag", "ernie"'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 304)
self.assertEqual(body, b'')
def test_list_no_match(self):
# no matches --> whatever the original status was
req = swob.Request.blank(
'/', headers={'If-None-Match': '"bert", "ernie"'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
def test_match_star(self):
# "*" means match anything; see RFC 2616 section 14.24
req = swob.Request.blank(
'/', headers={'If-None-Match': '*'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 304)
self.assertEqual(body, b'')
class TestConditionalIfMatch(unittest.TestCase):
def fake_app(self, environ, start_response):
start_response('200 OK', [('Etag', 'the-etag')])
return [b'hi']
def fake_start_response(*a, **kw):
pass
def test_simple_match(self):
# if etag matches, proceed as normal
req = swob.Request.blank(
'/', headers={'If-Match': 'the-etag'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
def test_simple_conditional_etag_match(self):
# if etag matches, proceed as normal
req = swob.Request.blank(
'/', headers={'If-Match': 'not-the-etag'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
resp._conditional_etag = 'not-the-etag'
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
def test_quoted_simple_match(self):
# double quotes or not, doesn't matter
req = swob.Request.blank(
'/', headers={'If-Match': '"the-etag"'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
def test_no_match(self):
# no match --> 412
req = swob.Request.blank(
'/', headers={'If-Match': 'not-the-etag'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 412)
self.assertEqual(body, b'')
def test_simple_conditional_etag_no_match(self):
req = swob.Request.blank(
'/', headers={'If-Match': 'the-etag'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
resp._conditional_etag = 'not-the-etag'
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 412)
self.assertEqual(body, b'')
def test_match_star(self):
# "*" means match anything; see RFC 2616 section 14.24
req = swob.Request.blank(
'/', headers={'If-Match': '*'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
def test_match_star_on_404(self):
def fake_app_404(environ, start_response):
start_response('404 Not Found', [])
return [b'hi']
req = swob.Request.blank(
'/', headers={'If-Match': '*'})
resp = req.get_response(fake_app_404)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 412)
self.assertEqual(body, b'')
class TestConditionalIfModifiedSince(unittest.TestCase):
def fake_app(self, environ, start_response):
start_response(
'200 OK', [('Last-Modified', 'Thu, 27 Feb 2014 03:29:37 GMT')])
return [b'hi']
def fake_start_response(*a, **kw):
pass
def test_absent(self):
req = swob.Request.blank('/')
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
def test_before(self):
req = swob.Request.blank(
'/',
headers={'If-Modified-Since': 'Thu, 27 Feb 2014 03:29:36 GMT'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
def test_same(self):
req = swob.Request.blank(
'/',
headers={'If-Modified-Since': 'Thu, 27 Feb 2014 03:29:37 GMT'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 304)
self.assertEqual(body, b'')
def test_greater(self):
req = swob.Request.blank(
'/',
headers={'If-Modified-Since': 'Thu, 27 Feb 2014 03:29:38 GMT'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 304)
self.assertEqual(body, b'')
def test_out_of_range_is_ignored(self):
# All that datetime gives us is a ValueError or OverflowError when
# something is out of range (i.e. less than datetime.datetime.min or
# greater than datetime.datetime.max). Unfortunately, we can't
# distinguish between a date being too old and a date being too new,
# so the best we can do is ignore such headers.
max_date_list = list(datetime.datetime.max.timetuple())
max_date_list[0] += 1 # bump up the year
too_big_date_header = time.strftime(
"%a, %d %b %Y %H:%M:%S GMT", time.struct_time(max_date_list))
req = swob.Request.blank(
'/',
headers={'If-Modified-Since': too_big_date_header})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
class TestConditionalIfUnmodifiedSince(unittest.TestCase):
def fake_app(self, environ, start_response):
start_response(
'200 OK', [('Last-Modified', 'Thu, 20 Feb 2014 03:29:37 GMT')])
return [b'hi']
def fake_start_response(*a, **kw):
pass
def test_absent(self):
req = swob.Request.blank('/')
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
def test_before(self):
req = swob.Request.blank(
'/',
headers={'If-Unmodified-Since': 'Thu, 20 Feb 2014 03:29:36 GMT'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 412)
self.assertEqual(body, b'')
def test_same(self):
req = swob.Request.blank(
'/',
headers={'If-Unmodified-Since': 'Thu, 20 Feb 2014 03:29:37 GMT'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
def test_greater(self):
req = swob.Request.blank(
'/',
headers={'If-Unmodified-Since': 'Thu, 20 Feb 2014 03:29:38 GMT'})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
def test_out_of_range_is_ignored(self):
# All that datetime gives us is a ValueError or OverflowError when
# something is out of range (i.e. less than datetime.datetime.min or
# greater than datetime.datetime.max). Unfortunately, we can't
# distinguish between a date being too old and a date being too new,
# so the best we can do is ignore such headers.
max_date_list = list(datetime.datetime.max.timetuple())
max_date_list[0] += 1 # bump up the year
too_big_date_header = time.strftime(
"%a, %d %b %Y %H:%M:%S GMT", time.struct_time(max_date_list))
req = swob.Request.blank(
'/',
headers={'If-Unmodified-Since': too_big_date_header})
resp = req.get_response(self.fake_app)
resp.conditional_response = True
body = b''.join(resp(req.environ, self.fake_start_response))
self.assertEqual(resp.status_int, 200)
self.assertEqual(body, b'hi')
if __name__ == '__main__':
unittest.main()
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