[client-connection] add an auto-close property for ClientConnection
The next commit introduce a connect function that open a new Session and return
an associated ClientConnection. The Session should not be used by anything else
than the created ClientConnection, so we want to close it at the same time than
the ClientConnection. The implementation in this changeset is simplistic. We
probably want to move this notion in the session itself. This be improved once
we have server side Connection
from logilab.common.testlib import TestCase, unittest_main, tag, Tags
from cubicweb.web import StatusResponse
from cubicweb.devtools.fake import FakeRequest
def _test_cache(hin, hout, method='GET'):
"""forge and process a request
return status code and the request object
status is None is no cache is involved
"""
# forge request
req = FakeRequest(method=method)
for key, value in hin:
req._headers_in.addRawHeader(key, str(value))
for key, value in hout:
req.headers_out.addRawHeader(key, str(value))
# process
status = None
try:
req.validate_cache()
except StatusResponse as ex:
status = ex.status
return status, req
class HTTPCache(TestCase):
"""Check that the http cache logiac work as expected
(as far as we understood the RFC)
"""
tags = TestCase.tags | Tags('http', 'cache')
def assertCache(self, expected, status, situation=''):
"""simple assert for nicer message"""
if expected != status:
if expected is None:
expected = "MODIFIED"
if status is None:
status = "MODIFIED"
msg = 'expected %r got %r' % (expected, status)
if situation:
msg = "%s - when: %s" % (msg, situation)
self.fail(msg)
def test_IN_none_OUT_none(self):
#: test that no caching is requested when not data is available
#: on any side
status, req =_test_cache((),())
self.assertIsNone(status)
def test_IN_Some_OUT_none(self):
#: test that no caching is requested when no data is available
#: server (origin) side
hin = [('if-modified-since','Sat, 14 Apr 2012 14:39:32 GM'),
]
status, req = _test_cache(hin, ())
self.assertIsNone(status)
hin = [('if-none-match','babar/huitre'),
]
status, req = _test_cache(hin, ())
self.assertIsNone(status)
hin = [('if-modified-since','Sat, 14 Apr 2012 14:39:32 GM'),
('if-none-match','babar/huitre'),
]
status, req = _test_cache(hin, ())
self.assertIsNone(status)
def test_IN_none_OUT_Some(self):
#: test that no caching is requested when no data is provided
#: by the client
hout = [('last-modified','Sat, 14 Apr 2012 14:39:32 GM'),
]
status, req = _test_cache((), hout)
self.assertIsNone(status)
hout = [('etag','babar/huitre'),
]
status, req = _test_cache((), hout)
self.assertIsNone(status)
hout = [('last-modified', 'Sat, 14 Apr 2012 14:39:32 GM'),
('etag','babar/huitre'),
]
status, req = _test_cache((), hout)
self.assertIsNone(status)
@tag('last_modified')
def test_last_modified_newer(self):
#: test the proper behavior of modification date only
# newer
hin = [('if-modified-since', 'Sat, 13 Apr 2012 14:39:32 GM'),
]
hout = [('last-modified', 'Sat, 14 Apr 2012 14:39:32 GM'),
]
status, req = _test_cache(hin, hout)
self.assertCache(None, status, 'origin is newer than client')
@tag('last_modified')
def test_last_modified_older(self):
# older
hin = [('if-modified-since', 'Sat, 15 Apr 2012 14:39:32 GM'),
]
hout = [('last-modified', 'Sat, 14 Apr 2012 14:39:32 GM'),
]
status, req = _test_cache(hin, hout)
self.assertCache(304, status, 'origin is older than client')
@tag('last_modified')
def test_last_modified_same(self):
# same
hin = [('if-modified-since', 'Sat, 14 Apr 2012 14:39:32 GM'),
]
hout = [('last-modified', 'Sat, 14 Apr 2012 14:39:32 GM'),
]
status, req = _test_cache(hin, hout)
self.assertCache(304, status, 'origin is equal to client')
@tag('etag')
def test_etag_mismatch(self):
#: test the proper behavior of etag only
# etag mismatch
hin = [('if-none-match', 'babar'),
]
hout = [('etag', 'celestine'),
]
status, req = _test_cache(hin, hout)
self.assertCache(None, status, 'etag mismatch')
@tag('etag')
def test_etag_match(self):
# etag match
hin = [('if-none-match', 'babar'),
]
hout = [('etag', 'babar'),
]
status, req = _test_cache(hin, hout)
self.assertCache(304, status, 'etag match')
# etag match in multiple
hin = [('if-none-match', 'loutre'),
('if-none-match', 'babar'),
]
hout = [('etag', 'babar'),
]
status, req = _test_cache(hin, hout)
self.assertCache(304, status, 'etag match in multiple')
# client use "*" as etag
hin = [('if-none-match', '*'),
]
hout = [('etag', 'babar'),
]
status, req = _test_cache(hin, hout)
self.assertCache(304, status, 'client use "*" as etag')
@tag('etag', 'last_modified')
def test_both(self):
#: test the proper behavior of etag only
# both wrong
hin = [('if-none-match', 'babar'),
('if-modified-since', 'Sat, 14 Apr 2012 14:39:32 GM'),
]
hout = [('etag', 'loutre'),
('last-modified', 'Sat, 15 Apr 2012 14:39:32 GM'),
]
status, req = _test_cache(hin, hout)
self.assertCache(None, status, 'both wrong')
@tag('etag', 'last_modified')
def test_both_etag_mismatch(self):
# both etag mismatch
hin = [('if-none-match', 'babar'),
('if-modified-since', 'Sat, 14 Apr 2012 14:39:32 GM'),
]
hout = [('etag', 'loutre'),
('last-modified', 'Sat, 13 Apr 2012 14:39:32 GM'),
]
status, req = _test_cache(hin, hout)
self.assertCache(None, status, 'both but etag mismatch')
@tag('etag', 'last_modified')
def test_both_but_modified(self):
# both but modified
hin = [('if-none-match', 'babar'),
('if-modified-since', 'Sat, 14 Apr 2012 14:39:32 GM'),
]
hout = [('etag', 'babar'),
('last-modified', 'Sat, 15 Apr 2012 14:39:32 GM'),
]
status, req = _test_cache(hin, hout)
self.assertCache(None, status, 'both but modified')
@tag('etag', 'last_modified')
def test_both_ok(self):
# both ok
hin = [('if-none-match', 'babar'),
('if-modified-since', 'Sat, 14 Apr 2012 14:39:32 GM'),
]
hout = [('etag', 'babar'),
('last-modified', 'Sat, 13 Apr 2012 14:39:32 GM'),
]
status, req = _test_cache(hin, hout)
self.assertCache(304, status, 'both ok')
@tag('etag', 'HEAD')
def test_head_verb(self):
#: check than FOUND 200 is properly raise without content on HEAD request
#: This logic does not really belong here :-/
# modified
hin = [('if-none-match', 'babar'),
]
hout = [('etag', 'rhino/really-not-babar'),
]
status, req = _test_cache(hin, hout, method='HEAD')
self.assertCache(200, status, 'modifier HEAD verb')
# not modified
hin = [('if-none-match', 'babar'),
]
hout = [('etag', 'babar'),
]
status, req = _test_cache(hin, hout, method='HEAD')
self.assertCache(304, status, 'not modifier HEAD verb')
@tag('etag', 'POST')
def test_post_verb(self):
# modified
hin = [('if-none-match', 'babar'),
]
hout = [('etag', 'rhino/really-not-babar'),
]
status, req = _test_cache(hin, hout, method='POST')
self.assertCache(None, status, 'modifier HEAD verb')
# not modified
hin = [('if-none-match', 'babar'),
]
hout = [('etag', 'babar'),
]
status, req = _test_cache(hin, hout, method='POST')
self.assertCache(412, status, 'not modifier HEAD verb')
@tag('expires')
def test_expires_added(self):
#: Check that Expires header is added:
#: - when the page is modified
#: - when none was already present
hin = [('if-none-match', 'babar'),
]
hout = [('etag', 'rhino/really-not-babar'),
]
status, req = _test_cache(hin, hout)
self.assertCache(None, status, 'modifier HEAD verb')
value = req.headers_out.getHeader('expires')
self.assertIsNotNone(value)
@tag('expires')
def test_expires_not_added(self):
#: Check that Expires header is not added if NOT-MODIFIED
hin = [('if-none-match', 'babar'),
]
hout = [('etag', 'babar'),
]
status, req = _test_cache(hin, hout)
self.assertCache(304, status, 'not modifier HEAD verb')
value = req.headers_out.getHeader('expires')
self.assertIsNone(value)
@tag('expires')
def test_expires_no_overwrite(self):
#: Check that cache does not overwrite existing Expires header
hin = [('if-none-match', 'babar'),
]
DATE = 'Sat, 13 Apr 2012 14:39:32 GM'
hout = [('etag', 'rhino/really-not-babar'),
('expires', DATE),
]
status, req = _test_cache(hin, hout)
self.assertCache(None, status, 'not modifier HEAD verb')
value = req.headers_out.getRawHeaders('expires')
self.assertEqual(value, [DATE])
if __name__ == '__main__':
unittest_main()