from __future__ import unicode_literals
import unittest

from oauthlib.oauth2 import WebApplicationClient, MobileApplicationClient
from oauthlib.oauth2 import LegacyApplicationClient, BackendApplicationClient
from requests import Request
from requests_oauthlib import OAuth2


class OAuth2AuthTest(unittest.TestCase):

    def setUp(self):
        self.token = {
            'token_type': 'Bearer',
            'access_token': 'asdfoiw37850234lkjsdfsdf',
            'expires_in': '3600'
        }
        self.client_id = 'foo'
        self.clients = [
            WebApplicationClient(self.client_id),
            MobileApplicationClient(self.client_id),
            LegacyApplicationClient(self.client_id),
            BackendApplicationClient(self.client_id),
        ]

    def test_add_token_to_url(self):
        url = 'https://example.com/resource?foo=bar'
        new_url = url + '&access_token=' + self.token['access_token']
        for client in self.clients:
            client.default_token_placement = 'query'
            auth = OAuth2(client=client, token=self.token)
            r = Request('GET', url, auth=auth).prepare()
            self.assertEqual(r.url, new_url)

    def test_add_token_to_headers(self):
        token = 'Bearer ' + self.token['access_token']
        for client in self.clients:
            auth = OAuth2(client=client, token=self.token)
            r = Request('GET', 'https://i.b', auth=auth).prepare()
            self.assertEqual(r.headers['Authorization'], token)

    def test_add_token_to_body(self):
        body = 'foo=bar'
        new_body = body + '&access_token=' + self.token['access_token']
        for client in self.clients:
            client.default_token_placement = 'body'
            auth = OAuth2(client=client, token=self.token)
            r = Request('GET', 'https://i.b', data=body, auth=auth).prepare()
            self.assertEqual(r.body, new_body)

    def test_add_nonexisting_token(self):
        for client in self.clients:
            auth = OAuth2(client=client)
            r = Request('GET', 'https://i.b', auth=auth)
            self.assertRaises(ValueError, r.prepare)