API now supports adding classifications by identifier instead of from a library

src/ifcopenshell-python/test/api/classification/test_add_classification_reference.py

@@ -0,0 +1,61 @@
+# 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 test.bootstrap
+import ifcopenshell.api
+import ifcopenshell.util.classification
+
+
+class TestAddReference(test.bootstrap.IFC4):
+    def test_adding_a_reference(self):
+        ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcProject")
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        result = ifcopenshell.api.run("classification.add_classification", self.file, classification="Name")
+        ifcopenshell.api.run(
+            "classification.add_reference",
+            self.file,
+            product=element,
+            identification="X",
+            name="Foobar",
+            classification=result,
+        )
+        references = list(ifcopenshell.util.classification.get_references(element))
+        assert len(references) == 1
+        assert references[0].Identification == "X"
+        assert references[0].Name == "Foobar"
+        assert references[0].ReferencedSource == self.file.by_type("IfcClassification")[0]
+
+    def test_adding_a_reference_from_a_library(self):
+        library = ifcopenshell.file()
+        classification = library.createIfcClassification(Name="Name")
+        reference = library.createIfcClassificationReference(Identification="1", ReferencedSource=classification)
+
+        ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcProject")
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        result = ifcopenshell.api.run("classification.add_classification", self.file, classification=classification)
+        ifcopenshell.api.run(
+            "classification.add_reference",
+            self.file,
+            product=element,
+            reference=reference,
+            classification=result,
+        )
+        references = list(ifcopenshell.util.classification.get_references(element))
+        assert len(references) == 1
+        assert references[0].Identification == "1"
+        assert references[0].ReferencedSource == self.file.by_type("IfcClassification")[0]