'makeProducer when no Range header is set returns an instance of
NoRangeStaticProducer.'

def test_noRangeHeaderGivesNoRangeStaticProducer(self):

    resource = self.makeResourceWithContent('')
    request = DummyRequest([])
    with resource.openForReading() as file:
        producer = resource.makeProducer(request, file)
        self.assertIsInstance(producer, static.NoRangeStaticProducer)
