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#-******************************************************************************
#
# Copyright (c) 2012 - 2013
# Sony Pictures Imageworks Inc. and
# Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Sony Pictures Imageworks, nor
# Industrial Light & Magic, nor the names of their contributors may be used
# to endorse or promote products derived from this software without specific
# prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#-******************************************************************************
import unittest
from imath import *
from alembic.Abc import *
class InstanceTest(unittest.TestCase):
def testInstanceExport(self):
"""Write an oarchive with an instance in it"""
oarch = OArchive('instance.abc')
#
# a
# / \
# b c <-- c is an instance of b
# |
# d
# |
# e
#
a = OObject(oarch.getTop(), 'a')
b = OObject(a, 'b')
d = OObject(b, 'd')
e = OObject(d, 'e')
a.addChildInstance(b, 'c')
def testInstanceImport(self):
"""Read an archive with an instance in it, verify it's instancing correctly."""
iarch = IArchive('instance.abc')
a = IObject(iarch.getTop(), 'a')
self.assertEqual(a.getNumChildren(), 2)
self.assertEqual(a.getChild('c').getName(), 'c')
self.assertEqual(a.getChild('c').getName(), a.getChild(1).getName())
self.assertTrue(a.isChildInstance('c'))
self.assertTrue(a.isChildInstance(1))
b = a.getChild('b')
self.assertTrue(b.valid())
# c is an instance root pointing at b
c = a.getChild('c')
self.assertTrue(c.valid())
self.assertTrue(c.isInstanceRoot())
self.assertTrue(c.isInstanceDescendant())
self.assertEqual(c.instanceSourcePath(), b.getFullName())
# instanced child of c is d
di = c.getChild('d')
self.assertTrue(di.valid())
self.assertEqual(di.getFullName(), '/a/c/d')
self.assertEqual(di.getParent().getFullName(), c.getFullName())
self.assertFalse(di.isInstanceRoot())
self.assertTrue(di.isInstanceDescendant())
# instanced child of d is e
ei = di.getChild('e')
self.assertTrue(ei.valid())
self.assertTrue(ei.getFullName(), '/a/c/d/e')
self.assertTrue(ei.getParent().getFullName(), di.getFullName())
self.assertFalse(ei.isInstanceRoot())
self.assertTrue(ei.isInstanceDescendant())
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