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IfcOpenShell/src/ifcopenshell-python/test/api/group/test_unassign_group.py
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2025-12-19 18:53:14 +05:00

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Python

# IfcOpenShell - IFC toolkit and geometry engine
# Copyright (C) 2022 Dion Moult <dion@thinkmoult.com>
#
# This file is part of IfcOpenShell.
#
# IfcOpenShell 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 3 of the License, or
# (at your option) any later version.
#
# IfcOpenShell 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 IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
import ifcopenshell.api.group
import ifcopenshell.api.root
import test.bootstrap
class TestAssignGroup(test.bootstrap.IFC4):
def test_group_unassignment(self):
element = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
element2 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
element3 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
group = ifcopenshell.api.group.add_group(self.file)
ifcopenshell.api.group.assign_group(self.file, products=[element, element2, element3], group=group)
ifcopenshell.api.group.unassign_group(self.file, products=[element2, element3], group=group)
assert len(rels := self.file.by_type("IfcRelAssignsToGroup")) == 1
rel = rels[0]
assert rel.RelatingGroup == group
assert rel.RelatedObjects == (element,)
def test_remove_relationship_unassigning_last_element(self):
element = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
element2 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
group = ifcopenshell.api.group.add_group(self.file)
ifcopenshell.api.group.assign_group(self.file, products=[element, element2], group=group)
ifcopenshell.api.group.unassign_group(self.file, products=[element, element2], group=group)
assert len(self.file.by_type("IfcRelAssignsToGroup")) == 0
class TestAssignGroupIFC2X3(test.bootstrap.IFC2X3, TestAssignGroup):
pass