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# -*- mode: python; coding: utf-8 -*-
#
# Pigment Python tools unit tests
#
# Copyright © 2006, 2007, 2008 Fluendo Embedded S.L.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
import unittest
import sys
import gobject
from pgm.graph.group import Group
from pgm.graph.image import Image
from pgm.widgets.list import List
import pgm
class TestList(unittest.TestCase):
def test_image(self):
canvas = pgm.Canvas()
l = List(canvas, pgm.DRAWABLE_MIDDLE)
img = Image()
pygobj_has_toggle_notify = gobject.pygobject_version >= (2, 13, 0)
if pygobj_has_toggle_notify:
initial_refcount = 2
else:
initial_refcount = 3
expected_refcount = initial_refcount
self.assertEqual(sys.getrefcount(l), initial_refcount)
self.assertEqual(sys.getrefcount(img), initial_refcount)
# adding img directly to the list _as a Group_
l.add(img)
if pygobj_has_toggle_notify:
# here one reference is taken by the group, another by the canvas
expected_refcount += 2
else:
# just a reference by the group
expected_refcount += 1
self.assertEqual (sys.getrefcount(img), expected_refcount)
# trying to add img again to the list _as a Group_
l.add(img)
self.assertEqual(sys.getrefcount(img), expected_refcount)
# removing img from the list
l.remove(img)
if pygobj_has_toggle_notify:
expected_refcount -= 2
else:
expected_refcount -= 1
self.assertEqual(sys.getrefcount(img), expected_refcount)
# same but adding img to the canvas before adding it to the list _as a
# Group_
canvas.add(pgm.DRAWABLE_MIDDLE, img)
if pygobj_has_toggle_notify:
# g_object_ref is called on the object here, so pygobject calls
# Py_INCREF on img
expected_refcount += 1
self.assertEqual(sys.getrefcount(img), expected_refcount)
l.add(img)
expected_refcount += 1
self.assertEqual(sys.getrefcount(img), expected_refcount)
l.remove(img)
if pygobj_has_toggle_notify:
# a ref is also removed from the canvas here
expected_refcount -= 2
else:
expected_refcount -= 1
self.assertEqual(sys.getrefcount(img), expected_refcount)
canvas.remove(img)
self.assertEqual(sys.getrefcount(img), initial_refcount)
# adding img directly to the list _as a List_
l.append(img)
# 4 references added: one for the Group, one for the List, two for the
# implicitely animated object (implicit + one modifier)
expected_refcount += 4
if pygobj_has_toggle_notify:
# the Group takes two refs here (one in the canvas)
expected_refcount += 1
self.assertEqual(sys.getrefcount(img), expected_refcount)
self.assertEqual(len(l.widgets), 1)
self.assertEqual(len(l.animated_widgets), 1)
# trying to add img again to the list _as a List_
l.append(img)
self.assertEqual(sys.getrefcount(img), expected_refcount)
self.assertEqual(len(l.widgets), 1)
self.assertEqual(len(l.animated_widgets), 1)
# removing img from the list
l.remove(img)
self.assertEqual(len(l.widgets), 0)
self.assertEqual(len(l.animated_widgets), 0)
self.assertEqual(sys.getrefcount(img), initial_refcount)
def test_group(self):
canvas = pgm.Canvas()
l = List(canvas, pgm.DRAWABLE_MIDDLE)
g = Group(canvas, pgm.DRAWABLE_MIDDLE)
pygobj_has_toggle_notify = gobject.pygobject_version >= (2, 13, 0)
if pygobj_has_toggle_notify:
g_initial_refcount = 2
l_initial_refcount = 2
else:
g_initial_refcount = 3
l_initial_refcount = 3
self.assertEqual(sys.getrefcount(l), l_initial_refcount)
self.assertEqual(sys.getrefcount(g), g_initial_refcount)
# adding group directly to the list _as a List_
l.append(g)
self.assertEqual(sys.getrefcount(g), g_initial_refcount+6)
self.assertEqual(len(l.widgets), 1)
self.assertEqual(len(l.animated_widgets), 1)
# removing group from the list
l.remove(g)
self.assertEqual(len(l.widgets), 0)
self.assertEqual(len(l.animated_widgets), 0)
self.assertEqual(sys.getrefcount(g), g_initial_refcount)
def test_multiple(self):
canvas = pgm.Canvas()
l = List(canvas, pgm.DRAWABLE_MIDDLE)
g = Group(canvas, pgm.DRAWABLE_MIDDLE)
img = Image()
pygobj_has_toggle_notify = gobject.pygobject_version >= (2, 13, 0)
if pygobj_has_toggle_notify:
img_initial_refcount = 2
g_initial_refcount = g_expected_refcount = 2
l_initial_refcount = 2
else:
img_initial_refcount = 3
g_initial_refcount = g_expected_refcount = 3
l_initial_refcount = 3
img_expected_refcount = img_initial_refcount
self.assertEqual(sys.getrefcount(l), l_initial_refcount)
self.assertEqual(sys.getrefcount(g), g_initial_refcount)
self.assertEqual(sys.getrefcount(img), img_initial_refcount)
# adding group directly to the list _as a List_
l.append(g)
l.append(img)
if pygobj_has_toggle_notify:
img_expected_refcount += 5
else:
img_expected_refcount += 4
g_expected_refcount += 6
self.assertEqual(sys.getrefcount(img), img_expected_refcount)
self.assertEqual(sys.getrefcount(g), g_expected_refcount)
self.assertEqual(len(l.widgets), 2)
self.assertEqual(len(l.animated_widgets), 2)
# removing img from the list
l.remove(img)
if pygobj_has_toggle_notify:
img_expected_refcount -= 5
else:
img_expected_refcount -= 4
self.assertEqual(len(l.widgets), 1)
self.assertEqual(len(l.animated_widgets), 1)
self.assertEqual(sys.getrefcount(img), img_expected_refcount)
# adding img to the group
g.add(img)
if pygobj_has_toggle_notify:
img_expected_refcount += 2
else:
img_expected_refcount += 1
self.assertEqual(len(l.widgets), 1)
self.assertEqual(len(l.animated_widgets), 1)
self.assertEqual(sys.getrefcount(img), img_expected_refcount)
self.assertEqual(sys.getrefcount(g), g_expected_refcount)
# removing group from the list
l.remove(g)
g.remove(img)
g_expected_refcount -= 6
img_expected_refcount -= 1
self.assertEqual(len(l.widgets), 0)
self.assertEqual(len(l.animated_widgets), 0)
self.assertEqual(sys.getrefcount(l), l_initial_refcount)
self.assertEqual(sys.getrefcount(g), g_initial_refcount)
self.assertEqual(sys.getrefcount(img), img_initial_refcount)
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