test_multiple_tables.py 文件源码

def verify_rdf(rdf_output):
    ids_ns = Namespace("http://foo.example.org/CSV/People-IDs/")
    ages_ns = Namespace("http://foo.example.org/CSV/People-Ages/")
    g = ConjunctiveGraph()
    g.parse(data=rdf_output, format="turtle")

    all_subjects = {x for x in g.subjects()}
    assert len(all_subjects) == 2

    bob_subj = ids_ns['1']
    joe_subj = ids_ns['2']
    assert bob_subj in all_subjects
    assert joe_subj in all_subjects

    # Bob's details
    assert len([g.triples((bob_subj, ids_ns.id, Literal(1)))]) == 1
    assert len([g.triples((bob_subj, ids_ns.name, Literal("Bob")))]) == 1
    assert len([g.triples((bob_subj, ages_ns.age, Literal(34)))]) == 1

    # Joe's details
    assert len([g.triples((joe_subj, ids_ns.id, Literal(2)))]) == 1
    assert len([g.triples((joe_subj, ids_ns.name, Literal("Joe")))]) == 1
    assert len([g.triples((joe_subj, ages_ns.age, Literal(54)))]) == 1