# Copyright (C) 2009, Tutorius.org
# Copyright (C) 2009, Simon Poirier <simpoir@gmail.com>
#
#
# 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

import unittest

from sugar.tutorius import addon, properties

class AddonTest(unittest.TestCase):
    def test_create_constructor_fail(self):
        try:
            obj = addon.create("BubbleMessage", wrong_param=True, second_wrong="This", last_wrong=12, unknown=13.4)
            assert False, "Constructor with wrong parameter should raise an exception"
        except:
            pass

    def test_create_wrong_addon(self):
        try:
            obj = addon.create("Non existing addon name")
            assert False, "Addon creator should raise an exception when the requested addon is unknown"
        except:
            pass

    def test_create(self):
        obj = addon.create("BubbleMessage", message="Hi!", position=[12,31])

        assert obj is not None

    def test_reload_addons(self):
        addon._cache = None
        assert len(addon.list_addons()) > 0, "Addons should be reloaded upon cache clear"

    def test_get_addon_meta(self):
        addon._cache = None
        meta = addon.get_addon_meta("BubbleMessage")
        expected = set(['mandatory_props', 'class', 'display_name', 'name', 'type', 'icon'])
        assert not set(meta.keys()).difference(expected), "%s == %s"%(meta.keys(), expected)

    def test_reverse_lookup(self):
        obj = addon.create("BubbleMessage", message="Hi!", position=[12,31])
        assert "BubbleMessage" == addon.get_name_from_type(type(obj))

        for name in addon.list_addons():
            klass = addon.get_addon_meta(name)['class']
            assert name == addon.get_name_from_type(klass),\
                "could not reverse lookup from type '%s'"%klass.__name__

    def test_addon_constructor(self):
        for name in addon.list_addons():
            obj = addon.create(name)
            # __init__ can have locals, but should not initialize attributes on
            # self as non-properties attributes won't survive serialization
            # through DBUS. Assignation in do() for actions or install_handlers
            # for event filters is the correct way.
            attribs = set(obj.__dict__.keys()).difference(obj._props.keys()+['_props', '_callback'])
            assert not attribs,\
                "assignation of attribute(s) %s detected in '%s.__init__'"%(attribs, type(obj).__name__)