test_Singleton.py

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#!/usr/bin/env python
# -*- Python -*-

# @file test_Singleton.py
# @brief test for Singleton class
# @date $Date$
# @author Shinji Kurihara
#
# Copyright (C) 2003-2005
#     Task-intelligence Research Group,
#     Intelligent Systems Research Institute,
#     National Institute of
#         Advanced Industrial Science and Technology (AIST), Japan
#     All rights reserved.
#
# $Id$
#

#
# $Log$
#
#

import sys
sys.path.insert(1,"../")

import unittest

from Singleton import *

class SingletonMock(Singleton):
        _cnt = 0
        def __init__(self):
                print "SingletonMock"
                #self._cnt = 0
                pass

        def up(self):
                self._cnt += 1

        def get(self):
                return self._cnt


class TestSingleton(unittest.TestCase):
        def setUp(self):
                return

        def tearDown(self):
                return


        def test_SingletonCase(self):
                mock = SingletonMock()
                print "Singleton 0"
                mock0 = SingletonMock()
                print "mock0 ", mock0
                print "Singleton 1"
                mock1 = SingletonMock()
                print "mock1 ", mock1
                self.assertEqual(mock0.get(), 0)
                self.assertEqual(mock1.get(), 0)
                mock0.up()
                self.assertEqual(mock0.get(), 1)
                self.assertEqual(mock1.get(), 1)
                mock1.up()
                self.assertEqual(mock0.get(), 2)
                self.assertEqual(mock1.get(), 2)
                mock2 = SingletonMock.instance()
                print "mock2 ", mock2
                self.assertEqual(mock0.get(), 2)
                self.assertEqual(mock1.get(), 2)
                self.assertEqual(mock2.get(), 2)
                return

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