~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2009 Canonical Ltd

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

"""Tests for smart server request infrastructure (bzrlib.smart.request)."""

from bzrlib import errors

from bzrlib.smart import request

from bzrlib.tests import TestCase

class NoBodyRequest(request.SmartServerRequest):

    """A request that does not implement do_body."""

    def do(self):

        return request.SuccessfulSmartServerResponse(('ok',))

class TestSmartRequest(TestCase):

    def test_request_class_without_do_body(self):

        """If a request has no body data, and the request's implementation does

        not override do_body, then no exception is raised.

        """

        # Create a SmartServerRequestHandler with a SmartServerRequest subclass

        # that does not implement do_body.

        handler = request.SmartServerRequestHandler(

            None, {'foo': NoBodyRequest}, '/')

        # Emulate a request with no body (i.e. just args).

        handler.args_received(('foo',))

        handler.end_received()

        # Request done, no exception was raised.

    def test_unexpected_body(self):

        """If a request implementation receives an unexpected body, it

        raises an error.

        """

        # Create a SmartServerRequestHandler with a SmartServerRequest subclass

        # that does not implement do_body.

        handler = request.SmartServerRequestHandler(

            None, {'foo': NoBodyRequest}, '/')

        # Emulate a request with a body

        handler.args_received(('foo',))

        handler.accept_body('some body bytes')

        # Note that the exception currently occurs at the end of the request.

        # In principle it would also be ok for it to happen earlier, during

        # accept_body.

        exc = self.assertRaises(errors.SmartProtocolError, handler.end_received)

        self.assertEquals('Request does not expect a body', exc.details)