def test_header(self):
environment = {
"REQUEST_METHOD": "GET",
"QUERY_STRING": "",
"PATH_INFO": "/",
"HTTP_AUTHORIZATION": "Basic abcd"
}
request = Request(env=environment)
self.assertEqual(request.header("authorization"), "Basic abcd")
self.assertIsNone(request.header("unknown"))
self.assertEqual(request.header("unknown", default=0), 0)
