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from rdflib import Graph, Literal, URIRef
from rdflib.plugins.sparql import prepareQuery
class TestConstructInitBindings:
def test_construct_init_bindings(self):
"""
This is issue https://github.com/RDFLib/rdflib/issues/1001
"""
g1 = Graph()
q_str = """
PREFIX : <urn:ns1:>
CONSTRUCT {
?uri :prop1 ?val1;
:prop2 ?c .
}
WHERE {
bind(uri(concat("urn:ns1:", ?a)) as ?uri)
bind(?b as ?val1)
}
"""
q_prepared = prepareQuery(q_str)
expected = [
(URIRef("urn:ns1:A"), URIRef("urn:ns1:prop1"), Literal("B")),
(URIRef("urn:ns1:A"), URIRef("urn:ns1:prop2"), Literal("C")),
]
results = g1.query(
q_prepared,
initBindings={"a": Literal("A"), "b": Literal("B"), "c": Literal("C")},
)
assert sorted(results, key=lambda x: str(x[1])) == expected
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