test(py-rules): add rectangle test

src/test/resources/py/tests/rules/rectangle.py

@@ -0,0 +1,16 @@
+ns = "http://datashapes.org/py/tests/rules/rectangle.test#"
+
+
+def compute_area(_this):
+    width = get_property(_this, "width")
+    height = get_property(_this, "height")
+    area = py_tf.literal(int(width.getLex()) * int(height.getLex()), width.getDatatype())
+    area_property = py_tf.namedNode(ns + "area")
+    return [ [_this, area_property, area] ]
+
+
+def get_property(_this, name):
+    it = _data.find(_this, py_tf.namedNode(ns + name), None)
+    result = it.next().getObject()
+    it.close()
+    return result

src/test/resources/py/tests/rules/rectangle.test.ttl

@@ -0,0 +1,45 @@
+# baseURI: http://datashapes.org/py/tests/rules/rectangle.test
+# imports: http://datashapes.org/dash
+# prefix: ex
+
+@prefix dash: <http://datashapes.org/dash#> .
+@prefix ex: <http://datashapes.org/py/tests/rules/rectangle.test#> .
+@prefix owl: <http://www.w3.org/2002/07/owl#> .
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix sh: <http://www.w3.org/ns/shacl#> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+
+<http://datashapes.org/py/tests/rules/rectangle.test>
+  rdf:type owl:Ontology ;
+  rdfs:label "Test of rectangle" ;
+  owl:imports <http://datashapes.org/dash> ;
+.
+ex:ExampleRectangle
+  rdf:type ex:Rectangle ;
+  ex:height 8 ;
+  ex:width 7 ;
+.
+ex:InferencingTestCase
+  rdf:type dash:InferencingTestCase ;
+  dash:expectedResult [
+      rdf:object 56 ;
+      rdf:predicate ex:area ;
+      rdf:subject ex:ExampleRectangle ;
+    ] ;
+.
+ex:Rectangle
+  rdf:type rdfs:Class ;
+  rdfs:subClassOf rdfs:Resource ;
+.
+ex:RectangleShape
+  rdf:type sh:NodeShape ;
+  sh:rule [
+      rdf:type sh:PyRule ;
+      sh:pyFunctionName "compute_area" ;
+      sh:pyLibrary [
+          sh:pyLibraryURL "http://datashapes.org/py/tests/rules/rectangle.py"^^xsd:anyURI ;
+        ] ;
+    ] ;
+  sh:targetClass ex:Rectangle ;
+.