def METHOD_NAME(self):
    # Test a range that is strictly included.
    response = self.request(headers=[("Range", "bytes=256-767")])
    self.assertEqual(response.status_code, 206)
    self.assertEqual(response.content_range.units, "bytes")
    self.assertEqual(response.content_range.start, 256)
    self.assertEqual(response.content_range.stop, 768)
    self.assertEqual(response.content_range.length, 17 * 1024)
    self.assertEqual(response.get_data(), self.content[256:768])