# Copyright 2012 Google Inc.
#
# Licensed 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.


"""Tests for oauth2client.keyring_storage tests.

Unit tests for oauth2client.keyring_storage.
"""

__author__ = 'jcgregorio@google.com (Joe Gregorio)'

import datetime
import keyring
import unittest
import mox

from oauth2client import GOOGLE_TOKEN_URI
from oauth2client.client import OAuth2Credentials
from oauth2client.keyring_storage import Storage


class OAuth2ClientKeyringTests(unittest.TestCase):

  def test_non_existent_credentials_storage(self):
    m = mox.Mox()
    m.StubOutWithMock(keyring, 'get_password')
    m.StubOutWithMock(keyring, 'set_password')
    keyring.get_password('my_unit_test', 'me').AndReturn(None)
    m.ReplayAll()

    s = Storage('my_unit_test', 'me')
    credentials = s.get()
    self.assertEquals(None, credentials)

    m.UnsetStubs()
    m.VerifyAll()

  def test_malformed_credentials_in_storage(self):
    m = mox.Mox()
    m.StubOutWithMock(keyring, 'get_password')
    m.StubOutWithMock(keyring, 'set_password')
    keyring.get_password('my_unit_test', 'me').AndReturn('{')
    m.ReplayAll()

    s = Storage('my_unit_test', 'me')
    credentials = s.get()
    self.assertEquals(None, credentials)

    m.UnsetStubs()
    m.VerifyAll()

  def test_json_credentials_storage(self):
    access_token = 'foo'
    client_id = 'some_client_id'
    client_secret = 'cOuDdkfjxxnv+'
    refresh_token = '1/0/a.df219fjls0'
    token_expiry = datetime.datetime.utcnow()
    user_agent = 'refresh_checker/1.0'

    credentials = OAuth2Credentials(
        access_token, client_id, client_secret,
        refresh_token, token_expiry, GOOGLE_TOKEN_URI,
        user_agent)

    m = mox.Mox()
    m.StubOutWithMock(keyring, 'get_password')
    m.StubOutWithMock(keyring, 'set_password')
    keyring.get_password('my_unit_test', 'me').AndReturn(None)
    keyring.set_password('my_unit_test', 'me', credentials.to_json())
    keyring.get_password('my_unit_test', 'me').AndReturn(credentials.to_json())
    m.ReplayAll()

    s = Storage('my_unit_test', 'me')
    self.assertEquals(None, s.get())

    s.put(credentials)

    restored = s.get()
    self.assertEqual('foo', restored.access_token)
    self.assertEqual('some_client_id', restored.client_id)

    m.UnsetStubs()
    m.VerifyAll()