diff --git a/src/ifcopenshell-python/test/fixtures/rules/fail-rigid-op-IfcPlaneAngleMeasure-IfcLengthMeasure-ifc4x3_add1.ifc b/src/ifcopenshell-python/test/fixtures/rules/fail-rigid-op-IfcPlaneAngleMeasure-IfcLengthMeasure-ifc4x3_add1.ifc
new file mode 100644
index 0000000000..07d4da8efa
--- /dev/null
+++ b/src/ifcopenshell-python/test/fixtures/rules/fail-rigid-op-IfcPlaneAngleMeasure-IfcLengthMeasure-ifc4x3_add1.ifc
@@ -0,0 +1,12 @@
+ISO-10303-21;
+HEADER;
+FILE_DESCRIPTION(('ViewDefinition [CoordinationView]'),'2;1');
+FILE_NAME('','2023-01-11T09:47:45',(),(),'IfcOpenShell v0.7.0-8a108f37','IfcOpenShell v0.7.0-8a108f37','');
+FILE_SCHEMA(('IFC4X3_ADD1'));
+ENDSEC;
+DATA;
+#1=IFCGEOGRAPHICCRS('EPSG:4326',$,$,$,$);
+#2=IFCGEOGRAPHICCRS('EPSG:3857',$,$,$,$);
+#3=IFCRIGIDOPERATION(#1,#2,IFCLENGTHMEASURE(0.),IFCPLANEANGLEMEASURE(0.),0.);
+ENDSEC;
+END-ISO-10303-21;
diff --git a/src/ifcopenshell-python/test/fixtures/rules/generate_18.py b/src/ifcopenshell-python/test/fixtures/rules/generate_18.py
new file mode 100644
index 0000000000..7f59b07b83
--- /dev/null
+++ b/src/ifcopenshell-python/test/fixtures/rules/generate_18.py
@@ -0,0 +1,12 @@
+import ifcopenshell
+
+for i, type_decl in enumerate(('IfcLengthMeasure', 'IfcPlaneAngleMeasure')):
+    f = ifcopenshell.file(schema="IFC4X3_ADD1")
+    f.createIfcRigidOperation(
+        SourceCRS=f.createIfcGeographicCRS('EPSG:4326'),
+        TargetCRS=f.createIfcGeographicCRS('EPSG:3857'),
+        FirstCoordinate=f.create_entity(type_decl, 0.0),
+        SecondCoordinate=f.create_entity('IfcPlaneAngleMeasure', 0.0),
+        Height=0.0
+    )
+    f.write(f"{'pass' if i else 'fail'}-rigid-op-IfcPlaneAngleMeasure-{type_decl}-ifc4x3_add1.ifc")
diff --git a/src/ifcopenshell-python/test/fixtures/rules/pass-rigid-op-IfcPlaneAngleMeasure-IfcPlaneAngleMeasure-ifc4x3_add1.ifc b/src/ifcopenshell-python/test/fixtures/rules/pass-rigid-op-IfcPlaneAngleMeasure-IfcPlaneAngleMeasure-ifc4x3_add1.ifc
new file mode 100644
index 0000000000..fce85eeb73
--- /dev/null
+++ b/src/ifcopenshell-python/test/fixtures/rules/pass-rigid-op-IfcPlaneAngleMeasure-IfcPlaneAngleMeasure-ifc4x3_add1.ifc
@@ -0,0 +1,12 @@
+ISO-10303-21;
+HEADER;
+FILE_DESCRIPTION(('ViewDefinition [CoordinationView]'),'2;1');
+FILE_NAME('','2023-01-11T09:47:45',(),(),'IfcOpenShell v0.7.0-8a108f37','IfcOpenShell v0.7.0-8a108f37','');
+FILE_SCHEMA(('IFC4X3_ADD1'));
+ENDSEC;
+DATA;
+#1=IFCGEOGRAPHICCRS('EPSG:4326',$,$,$,$);
+#2=IFCGEOGRAPHICCRS('EPSG:3857',$,$,$,$);
+#3=IFCRIGIDOPERATION(#1,#2,IFCPLANEANGLEMEASURE(0.),IFCPLANEANGLEMEASURE(0.),0.);
+ENDSEC;
+END-ISO-10303-21;