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import random
import json
from test_plus.test import TestCase
from django.core.urlresolvers import reverse
from django.core.exceptions import ValidationError
from model_mommy import mommy
from funkwhale_api.radios import radios
from funkwhale_api.radios import models
from funkwhale_api.favorites.models import TrackFavorite
from funkwhale_api.users.models import User
from funkwhale_api.music.models import Artist
class TestRadios(TestCase):
def setUp(self):
super().setUp()
self.user = User.objects.create_user(username='test', email='test@test.com', password='test')
def test_can_pick_track_from_choices(self):
choices = [1, 2, 3, 4, 5]
radio = radios.SimpleRadio()
first_pick = radio.pick(choices=choices)
self.assertIn(first_pick, choices)
previous_choices = [first_pick]
for remaining_choice in choices:
pick = radio.pick(choices=choices, previous_choices=previous_choices)
self.assertIn(pick, set(choices).difference(previous_choices))
def test_can_pick_by_weight(self):
choices_with_weight = [
# choice, weight
(1, 1),
(2, 2),
(3, 3),
(4, 4),
(5, 5),
]
picks = {choice: 0 for choice, weight in choices_with_weight}
for i in range(1000):
radio = radios.SimpleRadio()
pick = radio.weighted_pick(choices=choices_with_weight)
picks[pick] = picks[pick] + 1
self.assertTrue(picks[5] > picks[4])
self.assertTrue(picks[4] > picks[3])
self.assertTrue(picks[3] > picks[2])
self.assertTrue(picks[2] > picks[1])
def test_can_get_choices_for_favorites_radio(self):
tracks = mommy.make('music.Track', _quantity=100)
for i in range(20):
TrackFavorite.add(track=random.choice(tracks), user=self.user)
radio = radios.FavoritesRadio()
choices = radio.get_choices(user=self.user)
self.assertEqual(choices.count(), self.user.track_favorites.all().count())
for favorite in self.user.track_favorites.all():
self.assertIn(favorite.track, choices)
for i in range(20):
pick = radio.pick(user=self.user)
self.assertIn(pick, choices)
def test_can_use_radio_session_to_filter_choices(self):
tracks = mommy.make('music.Track', _quantity=30)
radio = radios.RandomRadio()
session = radio.start_session(self.user)
for i in range(30):
p = radio.pick()
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# ensure 30 differents tracks have been suggested
tracks_id = [session_track.track.pk for session_track in session.session_tracks.all()]
self.assertEqual(len(set(tracks_id)), 30)
def test_can_restore_radio_from_previous_session(self):
tracks = mommy.make('music.Track', _quantity=30)
radio = radios.RandomRadio()
session = radio.start_session(self.user)
restarted_radio = radios.RandomRadio(session)
self.assertEqual(radio.session, restarted_radio.session)
def test_can_get_start_radio_from_api(self):
url = reverse('api:radios:sessions-list')
response = self.client.post(url, {'radio_type': 'random'})
session = models.RadioSession.objects.latest('id')
self.assertEqual(session.radio_type, 'random')
self.assertEqual(session.user, None)
self.client.login(username=self.user.username, password='test')
response = self.client.post(url, {'radio_type': 'random'})
session = models.RadioSession.objects.latest('id')
self.assertEqual(session.radio_type, 'random')
self.assertEqual(session.user, self.user)
def test_can_start_radio_for_anonymous_user(self):
url = reverse('api:radios:sessions-list')
response = self.client.post(url, {'radio_type': 'random'})
session = models.RadioSession.objects.latest('id')
self.assertIsNone(session.user)
self.assertIsNotNone(session.session_key)
def test_can_get_track_for_session_from_api(self):
tracks = mommy.make('music.Track', _quantity=1)
self.client.login(username=self.user.username, password='test')
url = reverse('api:radios:sessions-list')
response = self.client.post(url, {'radio_type': 'random'})
session = models.RadioSession.objects.latest('id')
url = reverse('api:radios:tracks-list')
response = self.client.post(url, {'session': session.pk})
data = json.loads(response.content.decode('utf-8'))
self.assertEqual(data['track']['id'], tracks[0].id)
self.assertEqual(data['position'], 1)
next_track = mommy.make('music.Track')
response = self.client.post(url, {'session': session.pk})
data = json.loads(response.content.decode('utf-8'))
self.assertEqual(data['track']['id'], next_track.id)
self.assertEqual(data['position'], 2)
def test_related_object_radio_validate_related_object(self):
# cannot start without related object
radio = radios.ArtistRadio()
with self.assertRaises(ValidationError):
radio.start_session(self.user)
# cannot start with bad related object type
radio = radios.ArtistRadio()
with self.assertRaises(ValidationError):
radio.start_session(self.user, related_object=self.user)
def test_can_start_artist_radio(self):
artist = mommy.make('music.Artist')
wrong_tracks = mommy.make('music.Track', _quantity=30)
good_tracks = mommy.make('music.Track', artist=artist, _quantity=5)
radio = radios.ArtistRadio()
session = radio.start_session(self.user, related_object=artist)
self.assertEqual(session.radio_type, 'artist')
for i in range(5):
self.assertIn(radio.pick(), good_tracks)
def test_can_start_tag_radio(self):
tag = mommy.make('taggit.Tag')
wrong_tracks = mommy.make('music.Track', _quantity=30)
good_tracks = mommy.make('music.Track', _quantity=5)
for track in good_tracks:
track.tags.add(tag)
radio = radios.TagRadio()
session = radio.start_session(self.user, related_object=tag)
self.assertEqual(session.radio_type, 'tag')
for i in range(5):
self.assertIn(radio.pick(), good_tracks)
def test_can_start_artist_radio_from_api(self):
artist = mommy.make('music.Artist')
url = reverse('api:radios:sessions-list')
response = self.client.post(url, {'radio_type': 'artist', 'related_object_id': artist.id})
session = models.RadioSession.objects.latest('id')
self.assertEqual(session.radio_type, 'artist')
self.assertEqual(session.related_object, artist)
def test_can_start_less_listened_radio(self):
history = mommy.make('history.Listening', _quantity=5, user=self.user)
wrong_tracks = [h.track for h in history]
good_tracks = mommy.make('music.Track', _quantity=30)
radio = radios.LessListenedRadio()
session = radio.start_session(self.user)
self.assertEqual(session.related_object, self.user)
for i in range(5):
self.assertIn(radio.pick(), good_tracks)