# Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

# All rights reserved.

# This component and the accompanying materials are made available

# under the terms of the License "Eclipse Public License v1.0"

# which accompanies this distribution, and is available

# at the URL "http://www.eclipse.org/legal/epl-v10.html".

#

# Initial Contributors:

# Nokia Corporation - initial contribution.

#

# Contributors:

#

class MapEntry(object):

    "Encapsulates a ditamap entry and allows them to be compared"

    def __init__(self, tag, href=None, navtitle=None, children=[]):

        self.tag = tag

        self.href = href

        self.navtitle = navtitle

        self.children = children

    def __eq__(self, other):

        if (other is None or not getattr(other, 'href') 

                          or not getattr(other, 'navtitle')

                          or not getattr(other, 'tag')):

            return False

        return (

                self.tag == other.tag and 

                self.href == other.href and

                self.navtitle == other.navtitle

        )

    def __hash__(self):

        return hash((self.tag, self.href, self.navtitle))

################################################################

# Unit test code

################################################################

import unittest

class TestMapEntry(unittest.TestCase):

    def test_i_correctly_handle_possible_erros_when_comparing(self):

        map_a = MapEntry("a", "www.nokia.com", "Nokia")

        self.assertFalse(map_a == None)

        self.assertFalse(map_a == MapEntry("a", "www.nokia.com"))

    def test_i_correctly_compare_equal_map_entry_items(self):

        map_a = MapEntry("a", "www.nokia.com", "Nokia")

        map_b = MapEntry("a", "www.nokia.com", "Nokia")

        self.assertTrue(map_a == map_b)

    def test_i_correctly_compare_unequal_map_entry_items(self):

        map_a = MapEntry("a", "www.nokia.com", "Nokia")

        map_b = MapEntry("a", "www.symbian.com", "Nokia")

        self.assertFalse(map_a == map_b)