new_contents: import rdflib
  from rdflib.plugins.parsers.notation3 import BadSyntax
  
  import nose.tools
  
  # Test for https://github.com/RDFLib/rdflib/issues/336
  
  # stripped-down culprit:
  '''\
  @prefix fs: <http://freesurfer.net/fswiki/terms/> .
  @prefix prov: <http://www.w3.org/ns/prov#> .
  
  <http://nidm.nidash.org/iri/82b79326488911e3b2fb14109fcf6ae7>
          a fs:stat_header,
          prov:Entity ;
      fs:mrisurf.c-cvs_version
          "$Id: mrisurf.c,v 1.693.2.2 2011/04/27 19:21:05 nicks Exp $" .
  '''
  
  
  def test_ns_localname_roundtrip():
  
      XNS = rdflib.Namespace('http://example.net/fs')
  
      g = rdflib.Graph()
      g.bind('xns', str(XNS))
      g.add((
          rdflib.URIRef('http://example.com/thingy'),
          XNS['lowecase.xxx-xxx_xxx'],  # <- not round trippable
          rdflib.Literal("Junk")))
      turtledump = g.serialize(format="turtle").decode('utf-8')
      xmldump = g.serialize().decode('utf-8')
      g1 = rdflib.Graph()
  
      g1.parse(data=xmldump)
  
      nose.tools.assert_raises(BadSyntax,
          lambda: g1.parse(data=turtledump, format="turtle")
          )
  
  
  if __name__ == '__main__':
      import nose
      import sys
      nose.main(defaultTest=sys.argv[0])
  
subject: Test for issue #336, N3 round-tripping issue for NS localnames. (currently inverted, i.e. asserting failure for the test).