nest.assign_object - support batching #4474

src/ifcopenshell-python/test/api/nest/__init__.py

@@ -0,0 +1,17 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2021 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/>.

src/ifcopenshell-python/test/api/nest/test_assign_object.py

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+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2021 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 pytest
+import test.bootstrap
+import ifcopenshell.api
+import ifcopenshell.util.element
+import ifcopenshell.util.placement
+
+
+class TestAssignObject(test.bootstrap.IFC4):
+    def test_assigning_a_nesting(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSanitaryTerminal")
+        subelement1 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcValve")
+        subelement2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcValve")
+        rel = ifcopenshell.api.run(
+            "nest.assign_object", self.file, related_objects=[subelement1, subelement2], relating_object=element
+        )
+        assert ifcopenshell.util.element.get_nest(subelement1) == element
+        assert ifcopenshell.util.element.get_nest(subelement2) == element
+        assert rel.is_a("IfcRelNests")
+
+    def test_doing_nothing_if_the_nesting_is_already_assigned(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSanitaryTerminal")
+        subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcValve")
+        ifcopenshell.api.run("nest.assign_object", self.file, related_objects=[subelement], relating_object=element)
+        total_elements = len([e for e in self.file])
+        ifcopenshell.api.run("nest.assign_object", self.file, related_objects=[subelement], relating_object=element)
+        assert len([e for e in self.file]) == total_elements
+
+    def test_that_old_nesting_relationships_are_updated_if_they_still_have_elements(self):
+        element1 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSanitaryTerminal")
+        element2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSanitaryTerminal")
+        subelement1 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcValve")
+        subelement2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcValve")
+        ifcopenshell.api.run(
+            "nest.assign_object", self.file, related_objects=[subelement1, subelement2], relating_object=element1
+        )
+        rel = subelement1.Nests[0]
+        assert len(rel.RelatedObjects) == 2
+        ifcopenshell.api.run("nest.assign_object", self.file, related_objects=[subelement1], relating_object=element2)
+        assert len(rel.RelatedObjects) == 1
+
+    def test_that_old_nesting_relationships_are_purged_if_no_more_elements_are_nested(self):
+        element1 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSanitaryTerminal")
+        element2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSanitaryTerminal")
+        subelement1 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcValve")
+        ifcopenshell.api.run("nest.assign_object", self.file, related_objects=[subelement1], relating_object=element1)
+        rel_id = subelement1.Nests[0].id()
+        ifcopenshell.api.run("nest.assign_object", self.file, related_objects=[subelement1], relating_object=element2)
+        with pytest.raises(RuntimeError):
+            self.file.by_id(rel_id)