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#!/usr/bin/env python
import unittest
from rdflib.graph import ConjunctiveGraph
from rdflib.term import URIRef, Literal
from rdflib.graph import Graph
from io import BytesIO
class TestTrixSerialize(unittest.TestCase):
def setUp(self):
pass
def tearDown(self):
pass
def testSerialize(self):
s1 = URIRef("store:1")
r1 = URIRef("resource:1")
r2 = URIRef("resource:2")
label = URIRef("predicate:label")
g1 = Graph(identifier=s1)
g1.add((r1, label, Literal("label 1", lang="en")))
g1.add((r1, label, Literal("label 2")))
s2 = URIRef("store:2")
g2 = Graph(identifier=s2)
g2.add((r2, label, Literal("label 3")))
g = ConjunctiveGraph()
for s, p, o in g1.triples((None, None, None)):
g.addN([(s, p, o, g1)])
for s, p, o in g2.triples((None, None, None)):
g.addN([(s, p, o, g2)])
r3 = URIRef("resource:3")
g.add((r3, label, Literal(4)))
r = g.serialize(format="trix", encoding="utf-8")
g3 = ConjunctiveGraph()
g3.parse(BytesIO(r), format="trix")
for q in g3.quads((None, None, None)):
# TODO: Fix once getGraph/getContext is in conjunctive graph
if isinstance(q[3].identifier, URIRef):
tg = Graph(store=g.store, identifier=q[3].identifier)
else:
# BNode, this is a bit ugly
# we cannot match the bnode to the right graph automagically
# here I know there is only one anonymous graph,
# and that is the default one, but this is not always the case
tg = g.default_context
self.assertTrue(q[0:3] in tg)
def test_issue_250(self):
"""
https://github.com/RDFLib/rdflib/issues/250
When I have a ConjunctiveGraph with the default namespace set,
for example
import rdflib
g = rdflib.ConjunctiveGraph()
g.bind(None, "http://defaultnamespace")
then the Trix serializer binds the default namespace twice in its XML
output, once for the Trix namespace and once for the namespace I used:
print(g.serialize(format='trix').decode('UTF-8'))
<?xml version="1.0" encoding="utf-8"?>
<TriX
xmlns:xml="http://www.w3.org/XML/1998/namespace"
xmlns="http://defaultnamespace"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
xmlns="http://www.w3.org/2004/03/trix/trix-1/"
/>
"""
graph = ConjunctiveGraph()
graph.bind(None, "http://defaultnamespace")
sg = graph.serialize(format="trix")
self.assertTrue('xmlns="http://defaultnamespace"' not in sg, sg)
self.assertTrue('xmlns="http://www.w3.org/2004/03/trix/trix-1/' in sg, sg)
if __name__ == "__main__":
unittest.main()
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