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import pytest
from rdflib import OWL, RDF, RDFS, Graph, Literal, Namespace
from rdflib.extras.infixowl import Class, EnumeratedClass, Individual
EXNS = Namespace("http://example.org/vocab/")
@pytest.fixture(scope="function")
def graph():
g = Graph(identifier=EXNS.context0)
g.bind("ex", EXNS)
Individual.factoryGraph = g
yield g
del g
def test_enumerated_class(graph):
"""
Members of enumerated datatype are literals ("November"^^xsd:string etc.),
Members of enumerated class are individuals (some_prefix:November etc.)
"""
from rdflib.collection import Collection
from rdflib.util import first
my_class = EXNS.my_class
graph.add((my_class, RDF.type, OWL.Class))
graph.add((my_class, RDFS.subClassOf, OWL.Thing))
graph.add((my_class, RDF.value, Literal("my_class")))
my_subclass = EXNS.my_subclass
graph.add((my_subclass, RDF.type, OWL.Class))
graph.add((my_subclass, RDF.value, Literal("my_subclass")))
graph.add((my_subclass, RDFS.subClassOf, my_class))
my_list = EnumeratedClass(
EXNS.my_list, members=[EXNS.listitem1, EXNS.listitem2, EXNS.listitem3]
)
assert my_list.isPrimitive() is False
col = Collection(
graph, first(graph.objects(predicate=OWL.oneOf, subject=my_list.identifier))
)
lst = [graph.qname(item) for item in col]
assert lst == ["ex:listitem1", "ex:listitem2", "ex:listitem3"]
def test_enumerated_class_serialize(graph):
sg = Graph()
contlist = [Class(EXNS.Africa, graph=graph), Class(EXNS.NorthAmerica, graph=graph)]
ec = EnumeratedClass(members=contlist, graph=graph)
ec.serialize(sg)
assert len(sg) == 8
assert sg.serialize(format="ttl") == (
"@prefix owl: <http://www.w3.org/2002/07/owl#> .\n"
"@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .\n"
"\n"
"<http://example.org/vocab/Africa> a owl:Class .\n"
"\n"
"<http://example.org/vocab/NorthAmerica> a owl:Class .\n"
"\n"
"[] a owl:Class ;\n"
" owl:oneOf ( <http://example.org/vocab/Africa> "
"<http://example.org/vocab/NorthAmerica> ) .\n"
"\n"
)
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