beets/test/test_lyrics.py
2019-06-01 10:13:13 +10:00

422 lines
16 KiB
Python

# -*- coding: utf-8 -*-
# This file is part of beets.
# Copyright 2016, Fabrice Laporte.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
"""Tests for the 'lyrics' plugin."""
from __future__ import absolute_import, division, print_function
import os
import re
import six
import sys
import unittest
from mock import patch
from test import _common
from beets import logging
from beets.library import Item
from beets.util import bytestring_path
import confuse
from beetsplug import lyrics
from mock import MagicMock
log = logging.getLogger('beets.test_lyrics')
raw_backend = lyrics.Backend({}, log)
google = lyrics.Google(MagicMock(), log)
class LyricsPluginTest(unittest.TestCase):
def setUp(self):
"""Set up configuration."""
lyrics.LyricsPlugin()
def test_search_artist(self):
item = Item(artist='Alice ft. Bob', title='song')
self.assertIn(('Alice ft. Bob', ['song']),
lyrics.search_pairs(item))
self.assertIn(('Alice', ['song']),
lyrics.search_pairs(item))
item = Item(artist='Alice feat Bob', title='song')
self.assertIn(('Alice feat Bob', ['song']),
lyrics.search_pairs(item))
self.assertIn(('Alice', ['song']),
lyrics.search_pairs(item))
item = Item(artist='Alice feat. Bob', title='song')
self.assertIn(('Alice feat. Bob', ['song']),
lyrics.search_pairs(item))
self.assertIn(('Alice', ['song']),
lyrics.search_pairs(item))
item = Item(artist='Alice feats Bob', title='song')
self.assertIn(('Alice feats Bob', ['song']),
lyrics.search_pairs(item))
self.assertNotIn(('Alice', ['song']),
lyrics.search_pairs(item))
item = Item(artist='Alice featuring Bob', title='song')
self.assertIn(('Alice featuring Bob', ['song']),
lyrics.search_pairs(item))
self.assertIn(('Alice', ['song']),
lyrics.search_pairs(item))
item = Item(artist='Alice & Bob', title='song')
self.assertIn(('Alice & Bob', ['song']),
lyrics.search_pairs(item))
self.assertIn(('Alice', ['song']),
lyrics.search_pairs(item))
item = Item(artist='Alice and Bob', title='song')
self.assertIn(('Alice and Bob', ['song']),
lyrics.search_pairs(item))
self.assertIn(('Alice', ['song']),
lyrics.search_pairs(item))
item = Item(artist='Alice and Bob', title='song')
self.assertEqual(('Alice and Bob', ['song']),
list(lyrics.search_pairs(item))[0])
def test_search_pairs_multi_titles(self):
item = Item(title='1 / 2', artist='A')
self.assertIn(('A', ['1 / 2']), lyrics.search_pairs(item))
self.assertIn(('A', ['1', '2']), lyrics.search_pairs(item))
item = Item(title='1/2', artist='A')
self.assertIn(('A', ['1/2']), lyrics.search_pairs(item))
self.assertIn(('A', ['1', '2']), lyrics.search_pairs(item))
def test_search_pairs_titles(self):
item = Item(title='Song (live)', artist='A')
self.assertIn(('A', ['Song']), lyrics.search_pairs(item))
self.assertIn(('A', ['Song (live)']), lyrics.search_pairs(item))
item = Item(title='Song (live) (new)', artist='A')
self.assertIn(('A', ['Song']), lyrics.search_pairs(item))
self.assertIn(('A', ['Song (live) (new)']), lyrics.search_pairs(item))
item = Item(title='Song (live (new))', artist='A')
self.assertIn(('A', ['Song']), lyrics.search_pairs(item))
self.assertIn(('A', ['Song (live (new))']), lyrics.search_pairs(item))
item = Item(title='Song ft. B', artist='A')
self.assertIn(('A', ['Song']), lyrics.search_pairs(item))
self.assertIn(('A', ['Song ft. B']), lyrics.search_pairs(item))
item = Item(title='Song featuring B', artist='A')
self.assertIn(('A', ['Song']), lyrics.search_pairs(item))
self.assertIn(('A', ['Song featuring B']), lyrics.search_pairs(item))
item = Item(title='Song and B', artist='A')
self.assertNotIn(('A', ['Song']), lyrics.search_pairs(item))
self.assertIn(('A', ['Song and B']), lyrics.search_pairs(item))
item = Item(title='Song: B', artist='A')
self.assertIn(('A', ['Song']), lyrics.search_pairs(item))
self.assertIn(('A', ['Song: B']), lyrics.search_pairs(item))
def test_remove_credits(self):
self.assertEqual(
lyrics.remove_credits("""It's close to midnight
Lyrics brought by example.com"""),
"It's close to midnight"
)
self.assertEqual(
lyrics.remove_credits("""Lyrics brought by example.com"""),
""
)
# don't remove 2nd verse for the only reason it contains 'lyrics' word
text = """Look at all the shit that i done bought her
See lyrics ain't nothin
if the beat aint crackin"""
self.assertEqual(lyrics.remove_credits(text), text)
def test_is_lyrics(self):
texts = ['LyricsMania.com - Copyright (c) 2013 - All Rights Reserved']
texts += ["""All material found on this site is property\n
of mywickedsongtext brand"""]
for t in texts:
self.assertFalse(google.is_lyrics(t))
def test_slugify(self):
text = u"http://site.com/\xe7afe-au_lait(boisson)"
self.assertEqual(google.slugify(text),
'http://site.com/cafe_au_lait')
def test_scrape_strip_cruft(self):
text = u"""<!--lyrics below-->
&nbsp;one
<br class='myclass'>
two !
<br><br \\>
<blink>four</blink>"""
self.assertEqual(lyrics._scrape_strip_cruft(text, True),
"one\ntwo !\n\nfour")
def test_scrape_strip_scripts(self):
text = u"""foo<script>bar</script>baz"""
self.assertEqual(lyrics._scrape_strip_cruft(text, True),
"foobaz")
def test_scrape_strip_tag_in_comment(self):
text = u"""foo<!--<bar>-->qux"""
self.assertEqual(lyrics._scrape_strip_cruft(text, True),
"fooqux")
def test_scrape_merge_paragraphs(self):
text = u"one</p> <p class='myclass'>two</p><p>three"
self.assertEqual(lyrics._scrape_merge_paragraphs(text),
"one\ntwo\nthree")
def test_missing_lyrics(self):
self.assertFalse(google.is_lyrics(LYRICS_TEXTS['missing_texts']))
def url_to_filename(url):
url = re.sub(r'https?://|www.', '', url)
fn = "".join(x for x in url if (x.isalnum() or x == '/'))
fn = fn.split('/')
fn = os.path.join(LYRICS_ROOT_DIR,
bytestring_path(fn[0]),
bytestring_path(fn[-1] + '.txt'))
return fn
class MockFetchUrl(object):
def __init__(self, pathval='fetched_path'):
self.pathval = pathval
self.fetched = None
def __call__(self, url, filename=None):
self.fetched = url
fn = url_to_filename(url)
with open(fn, 'r') as f:
content = f.read()
return content
def is_lyrics_content_ok(title, text):
"""Compare lyrics text to expected lyrics for given title."""
if not text:
return
keywords = set(LYRICS_TEXTS[google.slugify(title)].split())
words = set(x.strip(".?, ") for x in text.lower().split())
return keywords <= words
LYRICS_ROOT_DIR = os.path.join(_common.RSRC, b'lyrics')
yaml_path = os.path.join(_common.RSRC, b'lyricstext.yaml')
LYRICS_TEXTS = confuse.load_yaml(yaml_path)
class LyricsGoogleBaseTest(unittest.TestCase):
def setUp(self):
"""Set up configuration."""
try:
__import__('bs4')
except ImportError:
self.skipTest('Beautiful Soup 4 not available')
if sys.version_info[:3] < (2, 7, 3):
self.skipTest("Python's built-in HTML parser is not good enough")
class LyricsPluginSourcesTest(LyricsGoogleBaseTest):
"""Check that beets google custom search engine sources are correctly
scraped.
"""
DEFAULT_SONG = dict(artist=u'The Beatles', title=u'Lady Madonna')
DEFAULT_SOURCES = [
dict(DEFAULT_SONG, backend=lyrics.LyricsWiki),
dict(artist=u'Santana', title=u'Black magic woman',
backend=lyrics.MusiXmatch),
dict(DEFAULT_SONG, backend=lyrics.Genius),
]
GOOGLE_SOURCES = [
dict(DEFAULT_SONG,
url=u'http://www.absolutelyrics.com',
path=u'/lyrics/view/the_beatles/lady_madonna'),
dict(DEFAULT_SONG,
url=u'http://www.azlyrics.com',
path=u'/lyrics/beatles/ladymadonna.html'),
dict(DEFAULT_SONG,
url=u'http://www.chartlyrics.com',
path=u'/_LsLsZ7P4EK-F-LD4dJgDQ/Lady+Madonna.aspx'),
dict(DEFAULT_SONG,
url=u'http://www.elyricsworld.com',
path=u'/lady_madonna_lyrics_beatles.html'),
dict(url=u'http://www.lacoccinelle.net',
artist=u'Jacques Brel', title=u"Amsterdam",
path=u'/paroles-officielles/275679.html'),
dict(DEFAULT_SONG,
url=u'http://letras.mus.br/', path=u'the-beatles/275/'),
dict(DEFAULT_SONG,
url='http://www.lyricsmania.com/',
path='lady_madonna_lyrics_the_beatles.html'),
dict(DEFAULT_SONG, url=u'http://lyrics.wikia.com/',
path=u'The_Beatles:Lady_Madonna'),
dict(DEFAULT_SONG,
url=u'http://www.lyricsmode.com',
path=u'/lyrics/b/beatles/lady_madonna.html'),
dict(url=u'http://www.lyricsontop.com',
artist=u'Amy Winehouse', title=u"Jazz'n'blues",
path=u'/amy-winehouse-songs/jazz-n-blues-lyrics.html'),
dict(DEFAULT_SONG,
url='http://www.metrolyrics.com/',
path='lady-madonna-lyrics-beatles.html'),
dict(url='http://www.musica.com/', path='letras.asp?letra=2738',
artist=u'Santana', title=u'Black magic woman'),
dict(url=u'http://www.paroles.net/',
artist=u'Lilly Wood & the prick', title=u"Hey it's ok",
path=u'lilly-wood-the-prick/paroles-hey-it-s-ok'),
dict(DEFAULT_SONG,
url='http://www.songlyrics.com',
path=u'/the-beatles/lady-madonna-lyrics'),
dict(DEFAULT_SONG,
url=u'http://www.sweetslyrics.com',
path=u'/761696.The%20Beatles%20-%20Lady%20Madonna.html')
]
def setUp(self):
LyricsGoogleBaseTest.setUp(self)
self.plugin = lyrics.LyricsPlugin()
@unittest.skipUnless(os.environ.get(
'BEETS_TEST_LYRICS_SOURCES', '0') == '1',
'lyrics sources testing not enabled')
def test_backend_sources_ok(self):
"""Test default backends with songs known to exist in respective databases.
"""
errors = []
for s in self.DEFAULT_SOURCES:
res = s['backend'](self.plugin.config, self.plugin._log).fetch(
s['artist'], s['title'])
if not is_lyrics_content_ok(s['title'], res):
errors.append(s['backend'].__name__)
self.assertFalse(errors)
@unittest.skipUnless(os.environ.get(
'BEETS_TEST_LYRICS_SOURCES', '0') == '1',
'lyrics sources testing not enabled')
def test_google_sources_ok(self):
"""Test if lyrics present on websites registered in beets google custom
search engine are correctly scraped.
"""
for s in self.GOOGLE_SOURCES:
url = s['url'] + s['path']
res = lyrics.scrape_lyrics_from_html(
raw_backend.fetch_url(url))
self.assertTrue(google.is_lyrics(res), url)
self.assertTrue(is_lyrics_content_ok(s['title'], res), url)
class LyricsGooglePluginMachineryTest(LyricsGoogleBaseTest):
"""Test scraping heuristics on a fake html page.
"""
source = dict(url=u'http://www.example.com', artist=u'John Doe',
title=u'Beets song', path=u'/lyrics/beetssong')
def setUp(self):
"""Set up configuration"""
LyricsGoogleBaseTest.setUp(self)
self.plugin = lyrics.LyricsPlugin()
@patch.object(lyrics.Backend, 'fetch_url', MockFetchUrl())
def test_mocked_source_ok(self):
"""Test that lyrics of the mocked page are correctly scraped"""
url = self.source['url'] + self.source['path']
res = lyrics.scrape_lyrics_from_html(raw_backend.fetch_url(url))
self.assertTrue(google.is_lyrics(res), url)
self.assertTrue(is_lyrics_content_ok(self.source['title'], res),
url)
@patch.object(lyrics.Backend, 'fetch_url', MockFetchUrl())
def test_is_page_candidate_exact_match(self):
"""Test matching html page title with song infos -- when song infos are
present in the title.
"""
from bs4 import SoupStrainer, BeautifulSoup
s = self.source
url = six.text_type(s['url'] + s['path'])
html = raw_backend.fetch_url(url)
soup = BeautifulSoup(html, "html.parser",
parse_only=SoupStrainer('title'))
self.assertEqual(
google.is_page_candidate(url, soup.title.string,
s['title'], s['artist']), True, url)
def test_is_page_candidate_fuzzy_match(self):
"""Test matching html page title with song infos -- when song infos are
not present in the title.
"""
s = self.source
url = s['url'] + s['path']
url_title = u'example.com | Beats song by John doe'
# very small diffs (typo) are ok eg 'beats' vs 'beets' with same artist
self.assertEqual(google.is_page_candidate(url, url_title, s['title'],
s['artist']), True, url)
# reject different title
url_title = u'example.com | seets bong lyrics by John doe'
self.assertEqual(google.is_page_candidate(url, url_title, s['title'],
s['artist']), False, url)
def test_is_page_candidate_special_chars(self):
"""Ensure that `is_page_candidate` doesn't crash when the artist
and such contain special regular expression characters.
"""
# https://github.com/beetbox/beets/issues/1673
s = self.source
url = s['url'] + s['path']
url_title = u'foo'
google.is_page_candidate(url, url_title, s['title'], u'Sunn O)))')
class SlugTests(unittest.TestCase):
def test_slug(self):
# plain ascii passthrough
text = u"test"
self.assertEqual(lyrics.slug(text), 'test')
# german unicode and capitals
text = u"Mørdag"
self.assertEqual(lyrics.slug(text), 'mordag')
# more accents and quotes
text = u"l'été c'est fait pour jouer"
self.assertEqual(lyrics.slug(text), 'l-ete-c-est-fait-pour-jouer')
# accents, parens and spaces
text = u"\xe7afe au lait (boisson)"
self.assertEqual(lyrics.slug(text), 'cafe-au-lait-boisson')
text = u"Multiple spaces -- and symbols! -- merged"
self.assertEqual(lyrics.slug(text),
'multiple-spaces-and-symbols-merged')
def suite():
return unittest.TestLoader().loadTestsFromName(__name__)
if __name__ == '__main__':
unittest.main(defaultTest='suite')