"""__unicode__ should return type unicode."""
            self.assertIsInstance(self.object_under_test.__unicode__(), UnicodeType)


class LiteralTests(Shared.SparqlNodeTests):
    """Tests for sparql.Literal."""

    net = False
    object_under_test = sparql.Literal({'datatype': '', 'lang': 'en', 'value': 'value'})


class BnodeTests(Shared.SparqlNodeTests):
    """Tests for sparql.Bnode."""

    net = False
    object_under_test = sparql.Bnode({'value': 'Foo'})


class URITests(Shared.SparqlNodeTests):
    """Tests for sparql.URI."""

    net = False
    object_under_test = sparql.URI({'value': 'http://foo.com'}, 'http://bar.com')


if __name__ == '__main__':  # pragma: no cover
    try:
        unittest.main()
    except SystemExit:
        pass

class TestPwb(PwbTestCase):

    """
    Test pwb.py functionality.

    This is registered as a Site test because it will not run
    without a user-config.py
    """

    # site must be explicitly set for pwb tests. This test does not require
    # network access, because tests/pwb/print_locals.py does not use
    # handle_args, etc. so version.py doesnt talk on the network.
    site = False
    net = False

    def testScriptEnvironment(self):
        """
        Test environment of pywikibot.

        Make sure the environment is not contaminated, and is the same as
        the environment we get when directly running a script.
        """
        direct = execute([sys.executable, '-m', 'tests.pwb.print_locals'])
        vpwb = execute_pwb([print_locals_test_script])
        self.maxDiff = None
        self.assertEqual(direct['stdout'], vpwb['stdout'])

if __name__ == "__main__":
    unittest.main(verbosity=10)