Added tests for Track genre handling

Author: phw

test/test_item.py

@@ -2,7 +2,7 @@
 #
 # Picard, the next-generation MusicBrainz tagger
 #
-# Copyright (C) 2018, 2021, 2024 Philipp Wolfer
+# Copyright (C) 2018, 2021, 2024-2025 Philipp Wolfer
 # Copyright (C) 2020-2021 Laurent Monin
 #
 # This program is free software; you can redistribute it and/or
@@ -20,6 +20,7 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 
+from collections import Counter
 from unittest.mock import Mock
 
 from test.picardtestcase import PicardTestCase
@@ -78,10 +79,11 @@ def test_set_genre_inc_params_with_user_tags(self):
         self.assertTrue(require_auth)
 
     def test_add_genres(self):
-        self.obj.add_genre('genre1', 2)
-        self.assertEqual(self.obj.genres['genre1'], 2)
-        self.obj.add_genre('genre1', 5)
-        self.assertEqual(self.obj.genres['genre1'], 7)
+        self.obj.add_genre('pop', 1)
+        self.obj.add_genre('rock', 1)
+        self.obj.add_genre('blues', 2)
+        self.obj.add_genre('pop', 2)
+        self.assertEqual(self.obj._genres, Counter(pop=3, rock=1, blues=2))
 
     def test_set_genre_inc_custom_config(self):
         inc = set()

test/test_track.py

@@ -3,7 +3,7 @@
 # Picard, the next-generation MusicBrainz tagger
 #
 # Copyright (C) 2021-2022 Laurent Monin
-# Copyright (C) 2021-2022, 2024 Philipp Wolfer
+# Copyright (C) 2021-2022, 2024-2025 Philipp Wolfer
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
@@ -24,16 +24,87 @@
 
 from test.picardtestcase import PicardTestCase
 
-from picard.track import Track
+from picard.album import (
+    Album,
+    AlbumArtist,
+)
+from picard.const import VARIOUS_ARTISTS_ID
+from picard.releasegroup import ReleaseGroup
+from picard.track import (
+    Track,
+    TrackArtist,
+)
 
 
 class TrackTest(PicardTestCase):
     def test_can_link_fingerprint(self):
         track = Track('123')
         self.assertTrue(track.can_link_fingerprint)
 
+    def test_merge_folksonomy_tags_no_album(self):
+        track = Track('123')
+        track._genres = Counter(pop=6, rock=7, blues=2)
+        self.assertEqual(track._merge_folksonomy_tags('genres'), track._genres)
+
+    def test_merge_folksonomy_tags_with_album(self):
+        track = Track('123')
+        track._genres = Counter(pop=6, rock=7)
+        album = Album('456')
+        album._genres = Counter(rock=3, blues=2)
+        release_group = ReleaseGroup('789')
+        release_group._genres = Counter(blues=1)
+        album.release_group = release_group
+        track.album = album
+        expected = Counter(pop=6, rock=10, blues=3)
+        self.assertEqual(track._merge_folksonomy_tags('genres'), expected)
+
+    def test_merge_folksonomy_tags_artist_genre_fallback(self):
+        self.set_config_values({'artists_genres': True})
+        track = Track('123')
+        album = Album('456')
+        artist1 = AlbumArtist('1')
+        artist1._genres = Counter(rock=1, blues=2)
+        album._album_artists.append(artist1)
+        artist2 = AlbumArtist('2')
+        artist2._genres = Counter(pop=2, rock=1)
+        album._album_artists.append(artist2)
+        track.album = album
+        expected = artist1._genres + artist2._genres
+        self.assertEqual(track._merge_folksonomy_tags('genres'), expected)
+
+    def test_merge_folksonomy_tags_various_artist_genre_fallback(self):
+        self.set_config_values({'artists_genres': True})
+        track = Track('123')
+        track.metadata['musicbrainz_albumartistid'] = VARIOUS_ARTISTS_ID
+        album = Album('456')
+        album_artist = AlbumArtist('1')
+        album_artist._genres = Counter(country=1)
+        album._album_artists.append(album_artist)
+        track.album = album
+        track_artist1 = TrackArtist('2')
+        track_artist1._genres = Counter(rock=1, blues=2)
+        track._track_artists.append(track_artist1)
+        track_artist2 = TrackArtist('3')
+        track_artist2._genres = Counter(pop=2, rock=1)
+        track._track_artists.append(track_artist2)
+        expected = track_artist1._genres + track_artist2._genres
+        self.assertEqual(track._merge_folksonomy_tags('genres'), expected)
+
+    def test_add_genres_variable(self):
+        track = Track('123')
+        track._genres = Counter(pop=6, rock=7, blues=2)
+        track._add_genres_variable()
+        self.assertEqual(track.metadata.getall('~genres'), ['blues', 'pop', 'rock'])
+
+    def test_add_folksonomy_tags_variable(self):
+        track = Track('123')
+        track._genres = Counter(pop=6, rock=7, blues=2)
+        track._folksonomy_tags = Counter(live=2, pop=6, rock=7, blues=2, favorite=1)
+        track._add_folksonomy_tags_variable()
+        self.assertEqual(track.metadata.getall('~folksonomy_tags'), ['favorite', 'live'])
+
 
-class TrackGenres2MetadataTest(PicardTestCase):
+class TrackGenresToMetadataTest(PicardTestCase):
     def test_empty(self):
         genres = Counter()
         ret = Track._genres_to_metadata(genres)
@@ -79,10 +150,10 @@ def test_minusage(self):
 
     def test_filters(self):
         genres = Counter(pop=6, rock=7, blues=2)
-        ret = Track._genres_to_metadata(genres, filters="-blues")
+        ret = Track._genres_to_metadata(genres, filters='-blues')
         self.assertEqual(ret, ['Pop', 'Rock'])
 
     def test_join_with(self):
         genres = Counter(pop=6, rock=7, blues=2)
-        ret = Track._genres_to_metadata(genres, join_with=",")
+        ret = Track._genres_to_metadata(genres, join_with=',')
         self.assertEqual(ret, ['Blues,Pop,Rock'])