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5d333dca3b
- test blacklist patterns - test file format - test complex regex patterns - test invalid regex gets escaped
707 lines
23 KiB
Python
707 lines
23 KiB
Python
# This file is part of beets.
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# Copyright 2016, Fabrice Laporte.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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"""Tests for the 'lastgenre' plugin."""
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import os
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import re
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import tempfile
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from collections import defaultdict
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from unittest.mock import Mock
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import pytest
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from beets.test import _common
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from beets.test.helper import BeetsTestCase
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from beets.ui import UserError
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from beetsplug import lastgenre
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class LastGenrePluginTest(BeetsTestCase):
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def setUp(self):
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super().setUp()
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self.plugin = lastgenre.LastGenrePlugin()
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def _setup_config(
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self, whitelist=False, canonical=False, count=1, prefer_specific=False
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):
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self.config["lastgenre"]["canonical"] = canonical
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self.config["lastgenre"]["count"] = count
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self.config["lastgenre"]["prefer_specific"] = prefer_specific
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if isinstance(whitelist, (bool, (str,))):
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# Filename, default, or disabled.
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self.config["lastgenre"]["whitelist"] = whitelist
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self.plugin.setup()
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if not isinstance(whitelist, (bool, (str,))):
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# Explicit list of genres.
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self.plugin.whitelist = whitelist
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def test_default(self):
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"""Fetch genres with whitelist and c14n deactivated"""
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self._setup_config()
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assert self.plugin._resolve_genres(["delta blues"]) == ["delta blues"]
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def test_c14n_only(self):
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"""Default c14n tree funnels up to most common genre except for *wrong*
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genres that stay unchanged.
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"""
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self._setup_config(canonical=True, count=99)
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assert self.plugin._resolve_genres(["delta blues"]) == ["blues"]
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assert self.plugin._resolve_genres(["iota blues"]) == ["iota blues"]
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def test_whitelist_only(self):
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"""Default whitelist rejects *wrong* (non existing) genres."""
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self._setup_config(whitelist=True)
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assert self.plugin._resolve_genres(["iota blues"]) == []
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def test_whitelist_c14n(self):
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"""Default whitelist and c14n both activated result in all parents
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genres being selected (from specific to common).
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"""
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self._setup_config(canonical=True, whitelist=True, count=99)
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assert self.plugin._resolve_genres(["delta blues"]) == [
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"delta blues",
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"blues",
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]
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def test_whitelist_custom(self):
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"""Keep only genres that are in the whitelist."""
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self._setup_config(whitelist={"blues", "rock", "jazz"}, count=2)
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assert self.plugin._resolve_genres(["pop", "blues"]) == ["blues"]
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self._setup_config(canonical="", whitelist={"rock"})
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assert self.plugin._resolve_genres(["delta blues"]) == []
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def test_format_and_stringify(self):
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"""Format genres list and return them as a separator-delimited string."""
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self._setup_config(count=2)
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assert (
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self.plugin._format_and_stringify(["jazz", "pop", "rock", "blues"])
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== "Jazz, Pop, Rock, Blues"
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)
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def test_count_c14n(self):
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"""Keep the n first genres, after having applied c14n when necessary"""
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self._setup_config(
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whitelist={"blues", "rock", "jazz"}, canonical=True, count=2
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)
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# thanks to c14n, 'blues' superseeds 'country blues' and takes the
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# second slot
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assert self.plugin._resolve_genres(
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["jazz", "pop", "country blues", "rock"]
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) == ["jazz", "blues"]
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def test_c14n_whitelist(self):
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"""Genres first pass through c14n and are then filtered"""
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self._setup_config(canonical=True, whitelist={"rock"})
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assert self.plugin._resolve_genres(["delta blues"]) == []
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def test_empty_string_enables_canonical(self):
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"""For backwards compatibility, setting the `canonical` option
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to the empty string enables it using the default tree.
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"""
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self._setup_config(canonical="", count=99)
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assert self.plugin._resolve_genres(["delta blues"]) == ["blues"]
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def test_empty_string_enables_whitelist(self):
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"""Again for backwards compatibility, setting the `whitelist`
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option to the empty string enables the default set of genres.
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"""
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self._setup_config(whitelist="")
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assert self.plugin._resolve_genres(["iota blues"]) == []
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def test_prefer_specific_loads_tree(self):
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"""When prefer_specific is enabled but canonical is not the
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tree still has to be loaded.
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"""
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self._setup_config(prefer_specific=True, canonical=False)
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assert self.plugin.c14n_branches != []
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def test_prefer_specific_without_canonical(self):
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"""Prefer_specific works without canonical."""
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self._setup_config(prefer_specific=True, canonical=False, count=4)
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assert self.plugin._resolve_genres(["math rock", "post-rock"]) == [
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"post-rock",
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"math rock",
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]
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def test_no_duplicate(self):
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"""Remove duplicated genres."""
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self._setup_config(count=99)
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assert self.plugin._resolve_genres(["blues", "blues"]) == ["blues"]
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def test_tags_for(self):
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class MockPylastElem:
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def __init__(self, name):
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self.name = name
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def get_name(self):
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return self.name
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class MockPylastObj:
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def get_top_tags(self):
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tag1 = Mock()
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tag1.weight = 90
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tag1.item = MockPylastElem("Pop")
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tag2 = Mock()
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tag2.weight = 40
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tag2.item = MockPylastElem("Rap")
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return [tag1, tag2]
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plugin = lastgenre.LastGenrePlugin()
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res = plugin._tags_for(MockPylastObj())
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assert res == ["pop", "rap"]
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res = plugin._tags_for(MockPylastObj(), min_weight=50)
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assert res == ["pop"]
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def test_sort_by_depth(self):
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self._setup_config(canonical=True)
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# Normal case.
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tags = ("electronic", "ambient", "post-rock", "downtempo")
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res = self.plugin._sort_by_depth(tags)
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assert res == ["post-rock", "downtempo", "ambient", "electronic"]
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# Non-canonical tag ('chillout') present.
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tags = ("electronic", "ambient", "chillout")
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res = self.plugin._sort_by_depth(tags)
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assert res == ["ambient", "electronic"]
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@pytest.mark.parametrize(
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"config_values, item_genre, mock_genres, expected_result",
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[
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# 0 - force and keep whitelisted
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "album", # means album or artist genre
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"whitelist": True,
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"canonical": False,
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"prefer_specific": False,
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"count": 10,
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},
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"Blues",
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{
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"album": ["Jazz"],
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},
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("Blues, Jazz", "keep + album, whitelist"),
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),
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# 1 - force and keep whitelisted, unknown original
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "album",
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"whitelist": True,
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"canonical": False,
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"prefer_specific": False,
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},
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"original unknown, Blues",
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{
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"album": ["Jazz"],
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},
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("Blues, Jazz", "keep + album, whitelist"),
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),
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# 2 - force and keep whitelisted on empty tag
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "album",
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"whitelist": True,
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"canonical": False,
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"prefer_specific": False,
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},
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"",
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{
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"album": ["Jazz"],
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},
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("Jazz", "album, whitelist"),
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),
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# 3 force and keep, artist configured
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "artist", # means artist genre, original or fallback
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"whitelist": True,
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"canonical": False,
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"prefer_specific": False,
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},
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"original unknown, Blues",
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{
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"album": ["Jazz"],
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"artist": ["Pop"],
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},
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("Blues, Pop", "keep + artist, whitelist"),
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),
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# 4 - don't force, disabled whitelist
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(
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{
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"force": False,
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"keep_existing": False,
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"source": "album",
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"whitelist": False,
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"canonical": False,
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"prefer_specific": False,
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},
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"any genre",
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{
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"album": ["Jazz"],
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},
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("any genre", "keep any, no-force"),
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),
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# 5 - don't force and empty is regular last.fm fetch; no whitelist too
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(
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{
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"force": False,
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"keep_existing": False,
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"source": "album",
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"whitelist": False,
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"canonical": False,
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"prefer_specific": False,
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},
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"",
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{
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"album": ["Jazzin"],
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},
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("Jazzin", "album, any"),
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),
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# 6 - fallback to next stages until found
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "track", # means track,album,artist,...
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"whitelist": False,
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"canonical": False,
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"prefer_specific": False,
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},
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"unknown genre",
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{
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"track": None,
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"album": None,
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"artist": ["Jazz"],
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},
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("Unknown Genre, Jazz", "keep + artist, any"),
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),
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# 7 - Keep the original genre when force and keep_existing are on, and
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# whitelist is disabled
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "track",
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"whitelist": False,
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"fallback": "fallback genre",
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"canonical": False,
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"prefer_specific": False,
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},
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"any existing",
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{
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"track": None,
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"album": None,
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"artist": None,
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},
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("any existing", "original fallback"),
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),
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# 7.1 - Keep the original genre when force and keep_existing are on, and
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# whitelist is enabled, and genre is valid.
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "track",
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"whitelist": True,
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"fallback": "fallback genre",
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"canonical": False,
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"prefer_specific": False,
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},
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"Jazz",
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{
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"track": None,
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"album": None,
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"artist": None,
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},
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("Jazz", "original fallback"),
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),
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# 7.2 - Return the configured fallback when force is on but
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# keep_existing is not.
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(
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{
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"force": True,
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"keep_existing": False,
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"source": "track",
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"whitelist": True,
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"fallback": "fallback genre",
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"canonical": False,
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"prefer_specific": False,
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},
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"Jazz",
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{
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"track": None,
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"album": None,
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"artist": None,
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},
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("fallback genre", "fallback"),
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),
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# 8 - fallback to fallback if no original
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "track",
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"whitelist": True,
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"fallback": "fallback genre",
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"canonical": False,
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"prefer_specific": False,
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},
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"",
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{
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"track": None,
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"album": None,
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"artist": None,
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},
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("fallback genre", "fallback"),
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),
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# 9 - null charachter as separator
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "album",
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"whitelist": True,
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"separator": "\u0000",
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"canonical": False,
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"prefer_specific": False,
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},
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"Blues",
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{
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"album": ["Jazz"],
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},
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("Blues\u0000Jazz", "keep + album, whitelist"),
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),
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# 10 - limit a lot of results
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "album",
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"whitelist": True,
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"count": 5,
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"canonical": False,
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"prefer_specific": False,
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"separator": ", ",
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},
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"original unknown, Blues, Rock, Folk, Metal",
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{
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"album": ["Jazz", "Bebop", "Hardbop"],
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},
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("Blues, Rock, Metal, Jazz, Bebop", "keep + album, whitelist"),
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),
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# 11 - force off does not rely on configured separator
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(
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{
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"force": False,
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"keep_existing": False,
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"source": "album",
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"whitelist": True,
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"count": 2,
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"separator": ", ",
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},
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"not ; configured | separator",
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{
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"album": ["Jazz", "Bebop"],
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},
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("not ; configured | separator", "keep any, no-force"),
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),
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# 12 - fallback to next stage (artist) if no allowed original present
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# and no album genre were fetched.
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "album",
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"whitelist": True,
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"fallback": "fallback genre",
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"canonical": False,
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"prefer_specific": False,
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},
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"not whitelisted original",
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{
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"track": None,
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"album": None,
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"artist": ["Jazz"],
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},
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("Jazz", "keep + artist, whitelist"),
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),
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# 13 - canonicalization transforms non-whitelisted genres to canonical forms
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#
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# "Acid Techno" is not in the default whitelist, thus gets resolved "up" in the
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# tree to "Techno" and "Electronic".
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(
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{
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"force": True,
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"keep_existing": False,
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"source": "album",
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"whitelist": True,
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"canonical": True,
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"prefer_specific": False,
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"count": 10,
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},
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"",
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{
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"album": ["acid techno"],
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},
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("Techno, Electronic", "album, whitelist"),
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),
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# 14 - canonicalization transforms whitelisted genres to canonical forms and
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# includes originals
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#
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# "Detroit Techno" is in the default whitelist, thus it stays and and also gets
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# resolved "up" in the tree to "Techno" and "Electronic". The same happens for
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# newly fetched genre "Acid House".
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "album",
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"whitelist": True,
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"canonical": True,
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"prefer_specific": False,
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"count": 10,
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"extended_debug": True,
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},
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"detroit techno",
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{
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"album": ["acid house"],
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},
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(
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"Detroit Techno, Techno, Electronic, Acid House, House",
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"keep + album, whitelist",
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),
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),
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# 15 - canonicalization transforms non-whitelisted original genres to canonical
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# forms and deduplication works.
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#
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# "Cosmic Disco" is not in the default whitelist, thus gets resolved "up" in the
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# tree to "Disco" and "Electronic". New genre "Detroit Techno" resolves to
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# "Techno". Both resolve to "Electronic" which gets deduplicated.
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(
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{
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"force": True,
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"keep_existing": True,
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"source": "album",
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"whitelist": True,
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"canonical": True,
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"prefer_specific": False,
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"count": 10,
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},
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"Cosmic Disco",
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{
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"album": ["Detroit Techno"],
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},
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(
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"Disco, Electronic, Detroit Techno, Techno",
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"keep + album, whitelist",
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),
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),
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],
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)
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def test_get_genre(config_values, item_genre, mock_genres, expected_result):
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"""Test _get_genre with various configurations."""
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|
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def mock_fetch_track_genre(self, obj=None):
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return mock_genres["track"]
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def mock_fetch_album_genre(self, obj):
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return mock_genres["album"]
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def mock_fetch_artist_genre(self, obj):
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return mock_genres["artist"]
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# Mock the last.fm fetchers. When whitelist enabled, we can assume only
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# whitelisted genres get returned, the plugin's _resolve_genre method
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# ensures it.
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lastgenre.LastGenrePlugin.fetch_track_genre = mock_fetch_track_genre
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lastgenre.LastGenrePlugin.fetch_album_genre = mock_fetch_album_genre
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lastgenre.LastGenrePlugin.fetch_artist_genre = mock_fetch_artist_genre
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# Initialize plugin instance and item
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plugin = lastgenre.LastGenrePlugin()
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# Configure
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plugin.config.set(config_values)
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plugin.setup() # Loads default whitelist and canonicalization tree
|
|
item = _common.item()
|
|
item.genre = item_genre
|
|
|
|
# Run
|
|
res = plugin._get_genre(item)
|
|
assert res == expected_result
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"blacklist_dict, artist, genre, expected_forbidden",
|
|
[
|
|
# Global blacklist - simple word
|
|
({"*": ["spoken word"]}, "Any Artist", "spoken word", True),
|
|
({"*": ["spoken word"]}, "Any Artist", "jazz", False),
|
|
# Global blacklist - regex pattern
|
|
({"*": [".*electronic.*"]}, "Any Artist", "ambient electronic", True),
|
|
({"*": [".*electronic.*"]}, "Any Artist", "jazz", False),
|
|
# Artist-specific blacklist
|
|
({"metallica": ["metal"]}, "Metallica", "metal", True),
|
|
({"metallica": ["metal"]}, "Iron Maiden", "metal", False),
|
|
# Case insensitive matching
|
|
({"metallica": ["metal"]}, "METALLICA", "METAL", True),
|
|
# Artist-specific blacklist - exact match
|
|
({"metallica": ["^Heavy Metal$"]}, "Metallica", "classic metal", False),
|
|
# Combined global and artist-specific
|
|
(
|
|
{"*": ["spoken word"], "metallica": ["metal"]},
|
|
"Metallica",
|
|
"spoken word",
|
|
True,
|
|
),
|
|
(
|
|
{"*": ["spoken word"], "metallica": ["metal"]},
|
|
"Metallica",
|
|
"metal",
|
|
True,
|
|
),
|
|
# Complex regex pattern with multiple features (raw string)
|
|
(
|
|
{
|
|
"fracture": [
|
|
r"^(heavy|black|power|death)?\s?(metal|rock)$|\w+-metal\d*$"
|
|
]
|
|
},
|
|
"Fracture",
|
|
"power metal",
|
|
True,
|
|
),
|
|
# Complex regex pattern with multiple features (regular string)
|
|
(
|
|
{"amon tobin": ["d(rum)?[ n/]*b(ass)?"]},
|
|
"Amon Tobin",
|
|
"dnb",
|
|
True,
|
|
),
|
|
# Empty blacklist
|
|
({}, "Any Artist", "any genre", False),
|
|
],
|
|
)
|
|
def test_blacklist_patterns(blacklist_dict, artist, genre, expected_forbidden):
|
|
"""Test blacklist pattern matching logic directly."""
|
|
|
|
# Initialize plugin
|
|
plugin = lastgenre.LastGenrePlugin()
|
|
|
|
# Set up compiled blacklist directly (skipping file parsing)
|
|
compiled_blacklist = defaultdict(list)
|
|
for artist_name, patterns in blacklist_dict.items():
|
|
compiled_blacklist[artist_name.lower()] = [
|
|
re.compile(pattern) for pattern in patterns
|
|
]
|
|
|
|
plugin.blacklist = compiled_blacklist
|
|
|
|
# Test the _is_forbidden method
|
|
result = plugin._is_forbidden(genre, artist)
|
|
assert result == expected_forbidden
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"file_content, expected_blacklist",
|
|
[
|
|
# Basic artist with pattern
|
|
("metallica:\n metal", {"metallica": ["metal"]}),
|
|
# Global blacklist
|
|
("*:\n spoken word", {"*": ["spoken word"]}),
|
|
# Multiple patterns per artist
|
|
(
|
|
"metallica:\n metal\n .*rock.*",
|
|
{"metallica": ["metal", ".*rock.*"]},
|
|
),
|
|
# Comments and empty lines ignored
|
|
(
|
|
"# comment\n*:\n spoken word\n\nmetallica:\n metal",
|
|
{"*": ["spoken word"], "metallica": ["metal"]},
|
|
),
|
|
# Case insensitive artist names
|
|
("METALLICA:\n METAL", {"metallica": ["metal"]}),
|
|
# Invalid regex pattern that gets escaped
|
|
("artist:\n [invalid(regex", {"artist": ["\\[invalid\\(regex"]}),
|
|
# Empty file
|
|
("", {}),
|
|
],
|
|
)
|
|
def test_blacklist_file_format(file_content, expected_blacklist):
|
|
"""Test blacklist file format parsing."""
|
|
|
|
with tempfile.NamedTemporaryFile(
|
|
mode="w", suffix=".txt", delete=False, encoding="utf-8"
|
|
) as f:
|
|
f.write(file_content)
|
|
blacklist_file = f.name
|
|
|
|
try:
|
|
plugin = lastgenre.LastGenrePlugin()
|
|
plugin.config["blacklist"] = blacklist_file
|
|
blacklist_result = plugin._load_blacklist()
|
|
|
|
# Convert compiled regex patterns back to strings for comparison
|
|
string_blacklist = {}
|
|
for artist, compiled_patterns in blacklist_result.items():
|
|
string_blacklist[artist] = [
|
|
pattern.pattern for pattern in compiled_patterns
|
|
]
|
|
|
|
assert string_blacklist == expected_blacklist
|
|
|
|
finally:
|
|
os.unlink(blacklist_file)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"invalid_content, expected_error_message",
|
|
[
|
|
# Missing colon
|
|
("metallica\n metal", "Malformed blacklist section header"),
|
|
# Pattern before section
|
|
(" metal\nmetallica:\n heavy metal", "before any section header"),
|
|
# Unindented pattern
|
|
("metallica:\nmetal", "Malformed blacklist section header"),
|
|
],
|
|
)
|
|
def test_blacklist_file_format_errors(invalid_content, expected_error_message):
|
|
"""Test blacklist file format error handling."""
|
|
|
|
with tempfile.NamedTemporaryFile(
|
|
mode="w", suffix=".txt", delete=False, encoding="utf-8"
|
|
) as f:
|
|
f.write(invalid_content)
|
|
blacklist_file = f.name
|
|
|
|
try:
|
|
plugin = lastgenre.LastGenrePlugin()
|
|
plugin.config["blacklist"] = blacklist_file
|
|
|
|
with pytest.raises(UserError) as exc_info:
|
|
plugin._load_blacklist()
|
|
|
|
assert expected_error_message in str(exc_info.value)
|
|
|
|
finally:
|
|
os.unlink(blacklist_file)
|