test_empty_values.py 文件源码

def test_empty_boolean():
    csvw = CSVW(csv_path="tests/empty.csv",
                metadata_path="tests/empty.bool.csv-metadata.json")
    rdf_output = csvw.to_rdf()

    g = ConjunctiveGraph()
    g.parse(data=rdf_output, format="turtle")

    assert len(g) == 2
    assert len(list(g.triples((None, None, Literal(False))))) == 2

    csvw = CSVW(csv_path="tests/empty.csv",
                metadata_path="tests/empty.invalid_base.csv-metadata.json")
    rdf_output = csvw.to_rdf()

    g = ConjunctiveGraph()
    g.parse(data=rdf_output, format="turtle")

    assert len(g) == 0