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from rdflib import Graph, URIRef, Literal, Variable
from rdflib.plugins.sparql import prepareQuery
from rdflib.compare import isomorphic
def test_service():
g = Graph()
q = '''select ?dbpHypernym ?dbpComment
where
{ service <http://DBpedia.org/sparql>
{ select ?dbpHypernym ?dbpComment
where
{
<http://dbpedia.org/resource/John_Lilburne>
<http://purl.org/linguistics/gold/hypernym> ?dbpHypernym ;
<http://www.w3.org/2000/01/rdf-schema#comment> ?dbpComment .
} } } limit 2'''
results = g.query(q)
assert len(results) == 2
for r in results:
assert len(r) == 2
def test_service_with_bind():
g = Graph()
q = '''select ?dbpHypernym ?dbpComment ?dbpDeathPlace
where
{ bind (<http://dbpedia.org/resource/Eltham> as ?dbpDeathPlace)
service <http://DBpedia.org/sparql>
{ select ?dbpHypernym ?dbpComment ?dbpDeathPlace
where
{
<http://dbpedia.org/resource/John_Lilburne>
<http://purl.org/linguistics/gold/hypernym> ?dbpHypernym ;
<http://www.w3.org/2000/01/rdf-schema#comment> ?dbpComment ;
<http://dbpedia.org/ontology/deathPlace> ?dbpDeathPlace .
} } } limit 2'''
results = g.query(q)
assert len(results) == 2
for r in results:
assert len(r) == 3
def test_service_with_values():
g = Graph()
q = '''select ?dbpHypernym ?dbpComment ?dbpDeathPlace
where
{ values (?dbpHypernym ?dbpDeathPlace) {(<http://dbpedia.org/resource/Leveller> <http://dbpedia.org/resource/London>) (<http://dbpedia.org/resource/Leveller> <http://dbpedia.org/resource/Eltham>)}
service <http://DBpedia.org/sparql>
{ select ?dbpHypernym ?dbpComment ?dbpDeathPlace
where
{
<http://dbpedia.org/resource/John_Lilburne>
<http://purl.org/linguistics/gold/hypernym> ?dbpHypernym ;
<http://www.w3.org/2000/01/rdf-schema#comment> ?dbpComment ;
<http://dbpedia.org/ontology/deathPlace> ?dbpDeathPlace .
} } } limit 2'''
results = g.query(q)
assert len(results) == 2
for r in results:
assert len(r) == 3
def test_service_with_implicit_select():
g = Graph()
q = '''select ?s ?p ?o
where
{
service <http://DBpedia.org/sparql>
{
values (?s ?p ?o) {(<http://example.org/a> <http://example.org/b> 1) (<http://example.org/a> <http://example.org/b> 2)}
}} limit 2'''
results = g.query(q)
assert len(results) == 2
for r in results:
assert len(r) == 3
def test_service_with_implicit_select_and_prefix():
g = Graph()
q = '''prefix ex:<http://example.org/>
select ?s ?p ?o
where
{
service <http://DBpedia.org/sparql>
{
values (?s ?p ?o) {(ex:a ex:b 1) (<http://example.org/a> <http://example.org/b> 2)}
}} limit 2'''
results = g.query(q)
assert len(results) == 2
for r in results:
assert len(r) == 3
def test_service_with_implicit_select_and_base():
g = Graph()
q = '''base <http://example.org/>
select ?s ?p ?o
where
{
service <http://DBpedia.org/sparql>
{
values (?s ?p ?o) {(<a> <b> 1) (<a> <b> 2)}
}} limit 2'''
results = g.query(q)
assert len(results) == 2
for r in results:
assert len(r) == 3
#def test_with_fixture(httpserver):
# httpserver.expect_request("/sparql/?query=SELECT * WHERE ?s ?p ?o").respond_with_json({"vars": ["s","p","o"], "bindings":[]})
# test_server = httpserver.url_for('/sparql')
# g = Graph()
# q = 'SELECT * WHERE {SERVICE <'+test_server+'>{?s ?p ?o} . ?s ?p ?o .}'
# results = g.query(q)
# assert len(results) == 0
if __name__ == '__main__':
# import nose
# nose.main(defaultTest=__name__)
test_service()
test_service_with_bind()
test_service_with_values()
test_service_with_implicit_select()
test_service_with_implicit_select_and_prefix()
test_service_with_implicit_select_and_base()
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