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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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from bzrlib import transport
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from bzrlib.tests import features
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# SFTPTransport offers better performances but relies on paramiko, if paramiko
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# is not available, we fallback to FtpTransport
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if features.paramiko.available():
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from bzrlib.tests import test_sftp_transport
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from bzrlib.transport import sftp
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from bzrlib.transport import sftp, Transport
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_backing_scheme = 'sftp'
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_backing_transport_class = sftp.SFTPTransport
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_backing_test_class = test_sftp_transport.TestCaseWithSFTPServer
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from bzrlib.transport import ftp
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from bzrlib.transport import ftp, Transport
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from bzrlib.tests import test_ftp_transport
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_backing_scheme = 'ftp'
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_backing_transport_class = ftp.FtpTransport
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_backing_test_class = test_ftp_transport.TestCaseWithFTPServer
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from bzrlib.transport import (
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register_urlparse_netloc_protocol,
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_unregister_urlparse_netloc_protocol,
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class TransportHooks(bzrlib.hooks.Hooks):
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"""Dict-mapping hook name to a list of callables for transport hooks"""
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super(TransportHooks, self).__init__("bzrlib.tests.transport_util",
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"InstrumentedTransport.hooks")
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# Invoked when the transport has just created a new connection.
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# The api signature is (transport, connection, credentials)
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self['_set_connection'] = []
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_hooked_scheme = 'hooked'
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def _change_scheme_in(url, actual, desired):
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if not url.startswith(actual + '://'):
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raise AssertionError('url "%r" does not start with "%r]"'
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return desired + url[len(actual):]
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class InstrumentedTransport(_backing_transport_class):
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"""Instrumented transport class to test commands behavior"""
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hooks = TransportHooks()
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def __init__(self, base, _from_transport=None):
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if not base.startswith(_hooked_scheme + '://'):
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raise ValueError(base)
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# We need to trick the backing transport class about the scheme used
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# We'll do the reverse when we need to talk to the backing server
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fake_base = _change_scheme_in(base, _hooked_scheme, _backing_scheme)
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super(InstrumentedTransport, self).__init__(
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fake_base, _from_transport=_from_transport)
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# The following is needed to minimize the effects of our trick above
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# while retaining the best compatibility.
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self._parsed_url.scheme = _hooked_scheme
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super(ConnectedTransport, self).__init__(str(self._parsed_url))
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class ConnectionHookedTransport(InstrumentedTransport):
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"""Transport instrumented to inspect connections"""
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def _set_connection(self, connection, credentials):
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"""Called when a new connection is created """
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super(ConnectionHookedTransport, self)._set_connection(connection,
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for hook in self.hooks['_set_connection']:
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hook(self, connection, credentials)
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class TestCaseWithConnectionHookedTransport(_backing_test_class):
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register_urlparse_netloc_protocol(_hooked_scheme)
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register_transport(_hooked_scheme, ConnectionHookedTransport)
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self.addCleanup(unregister_transport, _hooked_scheme,
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ConnectionHookedTransport)
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self.addCleanup(_unregister_urlparse_netloc_protocol, _hooked_scheme)
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super(TestCaseWithConnectionHookedTransport, self).setUp()
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self.reset_connections()
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# Add the 'hooked' url to the permitted url list.
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# XXX: See TestCase.start_server. This whole module shouldn't need to
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# exist - a bug has been filed on that. once its cleanedup/removed, the
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# standard test support code will work and permit the server url
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t = transport.get_transport_from_url(url)
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if t.base.endswith('work/'):
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self.permit_url(t.base)
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def get_url(self, relpath=None):
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super_self = super(TestCaseWithConnectionHookedTransport, self)
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url = super_self.get_url(relpath)
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# Replace the backing scheme by our own (see
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# InstrumentedTransport.__init__)
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url = _change_scheme_in(url, _backing_scheme, _hooked_scheme)
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def start_logging_connections(self):
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self.overrideAttr(InstrumentedTransport, 'hooks', TransportHooks())
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# We preserved the hooks class attribute. Now we install our hook.
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ConnectionHookedTransport.hooks.install_named_hook(
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'_set_connection', self._collect_connection, None)
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Transport.hooks.install_named_hook('post_connect',
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self.connections.append, None)
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def reset_connections(self):
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self.connections = []
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def _collect_connection(self, transport, connection, credentials):
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# Note: uncomment the following line and use 'bt' under pdb, that will
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# identify all the connections made including the extraneous ones.
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# import pdb; pdb.set_trace()
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self.connections.append(connection)
added
removed
bzrlib/tests/transport_util.py
