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"""
Issue 715 - path query chaining issue
Some incorrect matches were found when using oneOrMore ('+') and
zeroOrMore ('*') property paths and specifying neither the
subject or the object.
"""
from rdflib import Graph
from test.utils.namespace import EGDO
def test_issue_733():
g = Graph()
g.add((EGDO.S, EGDO.P, EGDO.O1))
g.add((EGDO.S, EGDO.P, EGDO.O2))
q = """
prefix ex:<http://example.org/>
select ?lexical_or_value ?ot ?gt where {
{SELECT (count(*) as ?lexical_or_value) where {
?s ?p ?o .
FILTER (?s=ex:S)
}}
{SELECT (count(*) as ?ot) where {
?s ?p ?o .
FILTER (?o=ex:O1)
}}
{SELECT (count(*) as ?gt) where {
?s ?p ?o .
FILTER (?o!=ex:O1 && ?s!=ex:O2)
}}
}
"""
res = g.query(q)
assert len(res) == 1
results = [[lit.toPython() for lit in line] for line in res]
assert results[0][0] == 2
assert results[0][1] == 1
assert results[0][2] == 1
def test_issue_733_independant():
g = Graph()
g.add((EGDO.S, EGDO.P, EGDO.O1))
g.add((EGDO.S, EGDO.P, EGDO.O2))
q = """
prefix ex:<http://example.org/>
select ?lexical_or_value where {
{SELECT (count(*) as ?lexical_or_value) where {
?s ?p ?o .
FILTER (?s=ex:S)
}}
}
"""
res = g.query(q)
assert len(res) == 1
results = [[lit.toPython() for lit in line] for line in res]
assert results[0][0] == 2
q = """
prefix ex:<http://example.org/>
select ?lexical_or_value where {
{SELECT (count(*) as ?lexical_or_value) where {
?s ?p ?o .
FILTER (?o=ex:O1)
}}
}
"""
res = g.query(q)
results = [[lit.toPython() for lit in line] for line in res]
assert results[0][0] == 1
|
