django/tests/regressiontests/requests/tests.py

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from datetime import datetime, timedelta
import time
from StringIO import StringIO
import unittest
from django.http import HttpRequest, HttpResponse, parse_cookie
from django.core.handlers.wsgi import WSGIRequest, LimitedStream
from django.core.handlers.modpython import ModPythonRequest
from django.utils.http import cookie_date
class RequestsTests(unittest.TestCase):
def test_httprequest(self):
request = HttpRequest()
self.assertEqual(request.GET.keys(), [])
self.assertEqual(request.POST.keys(), [])
self.assertEqual(request.COOKIES.keys(), [])
self.assertEqual(request.META.keys(), [])
def test_wsgirequest(self):
request = WSGIRequest({'PATH_INFO': 'bogus', 'REQUEST_METHOD': 'bogus', 'wsgi.input': StringIO('')})
self.assertEqual(request.GET.keys(), [])
self.assertEqual(request.POST.keys(), [])
self.assertEqual(request.COOKIES.keys(), [])
self.assertEqual(set(request.META.keys()), set(['PATH_INFO', 'REQUEST_METHOD', 'SCRIPT_NAME', 'wsgi.input']))
self.assertEqual(request.META['PATH_INFO'], 'bogus')
self.assertEqual(request.META['REQUEST_METHOD'], 'bogus')
self.assertEqual(request.META['SCRIPT_NAME'], '')
def test_modpythonrequest(self):
class FakeModPythonRequest(ModPythonRequest):
def __init__(self, *args, **kwargs):
super(FakeModPythonRequest, self).__init__(*args, **kwargs)
self._get = self._post = self._meta = self._cookies = {}
class Dummy:
def get_options(self):
return {}
req = Dummy()
req.uri = 'bogus'
request = FakeModPythonRequest(req)
self.assertEqual(request.path, 'bogus')
self.assertEqual(request.GET.keys(), [])
self.assertEqual(request.POST.keys(), [])
self.assertEqual(request.COOKIES.keys(), [])
self.assertEqual(request.META.keys(), [])
def test_parse_cookie(self):
self.assertEqual(parse_cookie('invalid:key=true'), {})
def test_httprequest_location(self):
request = HttpRequest()
self.assertEqual(request.build_absolute_uri(location="https://www.example.com/asdf"),
'https://www.example.com/asdf')
request.get_host = lambda: 'www.example.com'
request.path = ''
self.assertEqual(request.build_absolute_uri(location="/path/with:colons"),
'http://www.example.com/path/with:colons')
def test_near_expiration(self):
"Cookie will expire when an near expiration time is provided"
response = HttpResponse()
# There is a timing weakness in this test; The
# expected result for max-age requires that there be
# a very slight difference between the evaluated expiration
# time, and the time evaluated in set_cookie(). If this
# difference doesn't exist, the cookie time will be
# 1 second larger. To avoid the problem, put in a quick sleep,
# which guarantees that there will be a time difference.
expires = datetime.utcnow() + timedelta(seconds=10)
time.sleep(0.001)
response.set_cookie('datetime', expires=expires)
datetime_cookie = response.cookies['datetime']
self.assertEqual(datetime_cookie['max-age'], 10)
def test_far_expiration(self):
"Cookie will expire when an distant expiration time is provided"
response = HttpResponse()
response.set_cookie('datetime', expires=datetime(2028, 1, 1, 4, 5, 6))
datetime_cookie = response.cookies['datetime']
self.assertEqual(datetime_cookie['expires'], 'Sat, 01-Jan-2028 04:05:06 GMT')
def test_max_age_expiration(self):
"Cookie will expire if max_age is provided"
response = HttpResponse()
response.set_cookie('max_age', max_age=10)
max_age_cookie = response.cookies['max_age']
self.assertEqual(max_age_cookie['max-age'], 10)
self.assertEqual(max_age_cookie['expires'], cookie_date(time.time()+10))
def test_limited_stream(self):
# Read all of a limited stream
stream = LimitedStream(StringIO('test'), 2)
self.assertEqual(stream.read(), 'te')
# Read a number of characters greater than the stream has to offer
stream = LimitedStream(StringIO('test'), 2)
self.assertEqual(stream.read(5), 'te')
# Read sequentially from a stream
stream = LimitedStream(StringIO('12345678'), 8)
self.assertEqual(stream.read(5), '12345')
self.assertEqual(stream.read(5), '678')
# Read lines from a stream
stream = LimitedStream(StringIO('1234\n5678\nabcd\nefgh\nijkl'), 24)
# Read a full line, unconditionally
self.assertEqual(stream.readline(), '1234\n')
# Read a number of characters less than a line
self.assertEqual(stream.readline(2), '56')
# Read the rest of the partial line
self.assertEqual(stream.readline(), '78\n')
# Read a full line, with a character limit greater than the line length
self.assertEqual(stream.readline(6), 'abcd\n')
# Read the next line, deliberately terminated at the line end
self.assertEqual(stream.readline(4), 'efgh')
# Read the next line... just the line end
self.assertEqual(stream.readline(), '\n')
# Read everything else.
self.assertEqual(stream.readline(), 'ijkl')
def test_stream(self):
request = WSGIRequest({'REQUEST_METHOD': 'POST', 'wsgi.input': StringIO('name=value')})
self.assertEqual(request.read(), 'name=value')
def test_read_after_value(self):
"""
Reading from request is allowed after accessing request contents as
POST or raw_post_data.
"""
request = WSGIRequest({'REQUEST_METHOD': 'POST', 'wsgi.input': StringIO('name=value')})
self.assertEqual(request.POST, {u'name': [u'value']})
self.assertEqual(request.raw_post_data, 'name=value')
self.assertEqual(request.read(), 'name=value')
def test_value_after_read(self):
"""
Construction of POST or raw_post_data is not allowed after reading
from request.
"""
request = WSGIRequest({'REQUEST_METHOD': 'POST', 'wsgi.input': StringIO('name=value')})
self.assertEqual(request.read(2), 'na')
self.assertRaises(Exception, lambda: request.raw_post_data)
self.assertEqual(request.POST, {})
def test_read_by_lines(self):
request = WSGIRequest({'REQUEST_METHOD': 'POST', 'wsgi.input': StringIO('name=value')})
self.assertEqual(list(request), ['name=value'])