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Dion Moult
88 lines
4.8 KiB
Python
88 lines
4.8 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of IfcOpenShell.
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#
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# IfcOpenShell is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# IfcOpenShell is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
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import pytest
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import test.bootstrap
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import ifcopenshell.api.nest
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import ifcopenshell.api.root
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import ifcopenshell.util.element
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import ifcopenshell.util.placement
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class TestAssignObject(test.bootstrap.IFC4):
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def test_assigning_a_nesting(self):
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element = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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subelement1 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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subelement2 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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rel = ifcopenshell.api.nest.assign_object(
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self.file, related_objects=[subelement1, subelement2], relating_object=element
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)
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assert ifcopenshell.util.element.get_nest(subelement1) == element
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assert ifcopenshell.util.element.get_nest(subelement2) == element
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assert rel.is_a("IfcRelNests")
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def test_doing_nothing_if_the_nesting_is_already_assigned(self):
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element = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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subelement = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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ifcopenshell.api.nest.assign_object(self.file, related_objects=[subelement], relating_object=element)
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total_elements = len([e for e in self.file])
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ifcopenshell.api.nest.assign_object(self.file, related_objects=[subelement], relating_object=element)
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assert len([e for e in self.file]) == total_elements
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def test_that_old_nesting_relationships_are_updated_if_they_still_have_elements(self):
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element1 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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element2 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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subelement1 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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subelement2 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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ifcopenshell.api.nest.assign_object(
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self.file, related_objects=[subelement1, subelement2], relating_object=element1
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)
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rel = subelement1.Decomposes[0] if self.file.schema == "IFC2X3" else subelement1.Nests[0]
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assert len(rel.RelatedObjects) == 2
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ifcopenshell.api.nest.assign_object(self.file, related_objects=[subelement1], relating_object=element2)
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assert len(rel.RelatedObjects) == 1
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def test_that_old_nesting_relationships_are_purged_if_no_more_elements_are_nested(self):
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element1 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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element2 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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subelement1 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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ifcopenshell.api.nest.assign_object(self.file, related_objects=[subelement1], relating_object=element1)
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rel_id = (subelement1.Decomposes[0] if self.file.schema == "IFC2X3" else subelement1.Nests[0]).id()
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ifcopenshell.api.nest.assign_object(self.file, related_objects=[subelement1], relating_object=element2)
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with pytest.raises(RuntimeError):
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self.file.by_id(rel_id)
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def test_maintain_assignment_order_in_related_objects(self):
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element = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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subelements = [ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask") for _ in range(5)]
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for i in range(5):
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ifcopenshell.api.nest.assign_object(
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self.file, related_objects=subelements[: i + 1], relating_object=element
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)
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rel = self.file.by_type("IfcRelNests")[0]
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assert rel.RelatedObjects == tuple(subelements[: i + 1])
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# maintain the order in the affected relationships too
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element2 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTask")
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ifcopenshell.api.nest.assign_object(self.file, related_objects=subelements[2:3], relating_object=element2)
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assert rel.RelatedObjects == tuple(subelements[:2] + subelements[3:])
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class TestAssignObjectIFC2X3(test.bootstrap.IFC2X3, TestAssignObject):
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pass
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