import rdflib


def test_issue_248():
    """
    Ed Summers Thu, 24 May 2007 12:21:17 -0700

    As discussed with eikeon in #redfoot it appears that the n3 serializer
    is ignoring the base option to Graph.serialize...example follows:

    --

    #!/usr/bin/env python

    from rdflib.Graph import Graph
    from rdflib.URIRef import URIRef
    from rdflib import Literal, Namespace, RDF

    graph = Graph()
    DC = Namespace('http://purl.org/dc/terms/')
    SKOS = Namespace('http://www.w3.org/2004/02/skos/core#')
    LCCO = Namespace('http://loc.gov/catdir/cpso/lcco/')

    graph.bind('dc', DC)
    graph.bind('skos', SKOS)
    graph.bind('lcco', LCCO)

    concept = URIRef(LCCO['1'])
    graph.add((concept, RDF.type, SKOS['Concept']))
    graph.add((concept, SKOS['prefLabel'], Literal('Scrapbooks')))
    graph.add((concept, DC['LCC'], Literal('AC999.0999 - AC999999.Z9999')))

    print graph.serialize(format='n3', base=LCCO)

    --

    Which generates:

    --

    @prefix dc: <http://purl.org/dc/terms/>.
    @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
    @prefix skos: <http://www.w3.org/2004/02/skos/core#>.

        <http://loc.gov/catdir/cpso/lcco/1> a skos:Concept;
        dc:LCC "AC999.0999 - AC999999.Z9999";
        skos:prefLabel "Scrapbooks".

    --

    Notice

        <http://loc.gov/catdir/cpso/lcco/1> a skos:Concept;

    instead of:

        <1> a skos:Concept;

    //Ed

    """
    graph = rdflib.Graph()
    DC = rdflib.Namespace("http://purl.org/dc/terms/")  # noqa: N806
    SKOS = rdflib.Namespace("http://www.w3.org/2004/02/skos/core#")  # noqa: N806
    LCCO = rdflib.Namespace("http://loc.gov/catdir/cpso/lcco/")  # noqa: N806

    graph.bind("dc", DC)
    graph.bind("skos", SKOS)
    graph.bind("lcco", LCCO)

    concept = rdflib.URIRef(LCCO["1"])
    graph.add((concept, rdflib.RDF.type, SKOS["Concept"]))
    graph.add((concept, SKOS["prefLabel"], rdflib.Literal("Scrapbooks")))
    graph.add((concept, DC["LCC"], rdflib.Literal("AC999.0999 - AC999999.Z9999")))
    sg = graph.serialize(format="n3", base=LCCO)
    # See issue 248
    # Actual test should be the inverse of the below ...
    assert "<1> a skos:Concept ;" in sg, sg
