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from unittest import TestCase

from pandora import errors
from pandora.client import APIClient, BaseAPIClient
from pandora.py2compat import Mock, call, patch
from tests.test_pandora.test_models import TestAdItem


class TestAPIClientLogin(TestCase):

    class StubTransport(object):

        API_VERSION = None

        partner = None
        user = None

        FAKE_PARTNER = object()
        FAKE_USER = object()

        def __call__(self, method, **params):
            if method == "auth.partnerLogin":
                return self.FAKE_PARTNER
            elif method == "auth.userLogin":
                return self.FAKE_USER
            else:
                raise AssertionError("Invalid call")

        def set_partner(self, partner):
            self.partner = partner

        def set_user(self, user):
            self.user = user

    def test_login(self):
        transport = self.StubTransport()
        client = BaseAPIClient(transport, None, None, None)
        client.login("foobear", "secret")

        self.assertEqual("foobear", client.username)
        self.assertEqual("secret", client.password)
        self.assertIs(self.StubTransport.FAKE_USER, transport.user)
        self.assertIs(self.StubTransport.FAKE_PARTNER, transport.partner)

    def test_login_user_error(self):
        with self.assertRaises(errors.InvalidUserLogin):
            transport = Mock(side_effect=[None, errors.InvalidPartnerLogin])
            client = BaseAPIClient(transport, None, None, None)
            client.login("foobear", "secret")


class TestCallingAPIClient(TestCase):

    def test_call_should_retry_on_token_error(self):
        transport = Mock(side_effect=[errors.InvalidAuthToken(), None])

        client = BaseAPIClient(transport, None, None, None)
        client._authenticate = Mock()

        client.login("foo", "bar")
        client("method")

        client._authenticate.assert_called_with()
        transport.assert_has_calls([call("method"), call("method")])

    def test_ad_support_enabled_parameters(self):
        with patch.object(APIClient, '__call__') as playlist_mock:
            transport = Mock(side_effect=[errors.InvalidAuthToken(), None])

            client = APIClient(transport, None, None, None, None)
            client._authenticate = Mock()

            client.get_playlist('token_mock')

            playlist_mock.assert_has_calls([call("station.getPlaylist",
                                             audioAdPodCapable=True,
                                             includeTrackLength=True,
                                             stationToken='token_mock',
                                             xplatformAdCapable=True)])


class TestGettingQualities(TestCase):

    def test_with_invalid_quality_returning_all(self):
        result = BaseAPIClient.get_qualities("foo", True)
        self.assertEqual(BaseAPIClient.ALL_QUALITIES, result)

    def test_with_invalid_quality_returning_none(self):
        result = BaseAPIClient.get_qualities("foo", False)
        self.assertEqual([], result)

    def test_with_valid_quality(self):
        result = BaseAPIClient.get_qualities(
                BaseAPIClient.MED_AUDIO_QUALITY, False)

        expected = [
                BaseAPIClient.LOW_AUDIO_QUALITY,
                BaseAPIClient.MED_AUDIO_QUALITY]

        self.assertEqual(expected, result)


class TestGettingAds(TestCase):

    def test_get_ad_item_(self):
        with patch.object(APIClient, '__call__',
                return_value=TestAdItem.JSON_DATA) as ad_metadata_mock:
            transport = Mock(side_effect=[errors.InvalidAuthToken(), None])

            client = APIClient(transport, None, None, None, None)
            client._authenticate = Mock()

            ad_item = client.get_ad_item('id_mock', 'token_mock')
            assert ad_item.station_id == 'id_mock'
            assert ad_item.ad_token == 'token_mock'

            ad_metadata_mock.assert_has_calls([call("ad.getAdMetadata",
                                                    adToken='token_mock',
                                                    returnAdTrackingTokens=True,
                                                    supportAudioAds=True)])

    def test_get_ad_item_with_no_station_id_specified_raises_exception(self):
        transport = Mock(side_effect=[errors.InvalidAuthToken(), None])

        client = APIClient(transport, None, None, None, None)
        client.get_ad_metadata = Mock()

        self.assertRaises(
                errors.ParameterMissing, client.get_ad_item, '', 'token_mock')