py_gen/tests/generic_util.py

#!/usr/bin/env python
# Copyright 2013, Big Switch Networks, Inc.
#
# LoxiGen is licensed under the Eclipse Public License, version 1.0 (EPL), with
# the following special exception:
#
# LOXI Exception
#
# As a special exception to the terms of the EPL, you may distribute libraries
# generated by LoxiGen (LoxiGen Libraries) under the terms of your choice, provided
# that copyright and licensing notices generated by LoxiGen are not altered or removed
# from the LoxiGen Libraries and the notice provided below is (i) included in
# the LoxiGen Libraries, if distributed in source code form and (ii) included in any
# documentation for the LoxiGen Libraries, if distributed in binary form.
#
# Notice: "Copyright 2013, Big Switch Networks, Inc. This library was generated by the LoxiGen Compiler."
#
# You may not use this file except in compliance with the EPL or LOXI Exception. You may obtain
# a copy of the EPL at:
#
# http://www.eclipse.org/legal/epl-v10.html
#
# 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
# EPL for the specific language governing permissions and limitations
# under the EPL.
import unittest

try:
    import loxi
    import loxi.generic_util
except ImportError:
    exit("loxi package not found. Try setting PYTHONPATH.")

class TestUnpackArray(unittest.TestCase):
    def test_simple(self):
        a = loxi.generic_util.unpack_array(str, 3, "abcdefghi")
        self.assertEquals(['abc', 'def', 'ghi'], a)

        with self.assertRaisesRegexp(loxi.ProtocolError, "invalid array length"):
            loxi.generic_util.unpack_array(str, 3, "abcdefgh")

class TestUnpackList(unittest.TestCase):
    def test_simple(self):
        a = loxi.generic_util.unpack_list(str, '!B', "\x04abc\x03de\x02f\x01")
        self.assertEquals(['\x04abc', '\x03de', '\x02f', '\x01'], a)

if __name__ == '__main__':
    unittest.main()