def test_lookupKey(self):
        m = athena.MappingResource({'name': 'value'})
        m.resourceFactory = sets.Set
        resource, segments = m.locateChild(None, ('name',))
        self.assertEquals(segments, [])
        self.assertEquals(resource, sets.Set('value'))
L{athena.MappingResource} should return whatever the
dataset/ETHPy150Open twisted/nevow/nevow/test/test_athena.py/MappingResourceTests.test_lookupKey