# Copyright (c) 2014 Spotify AB
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
import unittest
from crtauth import wsgi


class WsgiTest(unittest.TestCase):
    def test_parse_request(self):
        # trigger short request
        _check_req_v0("noa")

        # trigger v0 request where len(s) % 4 == 1
        _check_req_v0("stack")

        # trigger first byte is > 0x03
        _check_req_v0("BXGjYWJj")

        # second byte is not 'q'
        _check_req_v0("AXOjYWJj")

        # zero length username
        _check_req_v0("AXOg")

        # third byte is something completely else
        _check_req_v0("AXHcYWJj")

        # string length too long (str 16)
        _check_req_v0("AXHaYWJj")

        # string length longer than available bytes
        _check_req_v0("AXGjYWI")

        # string length longer than available bytes (also longer than 31)
        _check_req_v0("AXHZYWJj")

        # a valid v1 'abc' username
        username, version = wsgi.CrtauthMiddleware.parse_request("AXGjYWJj")
        assert username == "abc"
        assert version == 1

def _check_req_v0(request):
    u, v = wsgi.CrtauthMiddleware.parse_request(request)
    assert u == request
    assert v == 0

