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#!/usr/bin/env ruby
require './mp3tag'
require 'runit/testcase'
class Mp3TagTest < RUNIT::TestCase
Mp3File = '/tmp/1.mp3'
def setup
system("cp '#{ARGV[0]}' #{Mp3File}")
end
def test_hastag
Mp3Tag.new(Mp3File).commit
assert(Mp3Tag.hastag?(Mp3File) == true)
Mp3Tag.removetag(Mp3File)
assert(Mp3Tag.hastag?(Mp3File) == false)
end
def test_addtag
Mp3Tag.removetag(Mp3File)
size_without_tag = File.stat(Mp3File).size
Mp3Tag.new(Mp3File).commit
size_with_tag = File.stat(Mp3File).size
assert(size_with_tag - size_without_tag == 128)
end
def test_removetag
Mp3Tag.new(Mp3File).commit
size_with_tag = File.stat(Mp3File).size
Mp3Tag.removetag(Mp3File)
size_without_tag = File.stat(Mp3File).size
assert(size_with_tag - size_without_tag == 128)
end
def test_integrity
Mp3Tag.removetag(Mp3File)
md5_before = `md5sum #{Mp3File}`
Mp3Tag.new(Mp3File).commit
Mp3Tag.removetag(Mp3File)
md5_after = `md5sum #{Mp3File}`
assert(md5_after == md5_before)
Mp3Tag.new(Mp3File).commit
md5_before = `md5sum #{Mp3File}`
Mp3Tag.removetag(Mp3File)
Mp3Tag.new(Mp3File).commit
md5_after = `md5sum #{Mp3File}`
assert(md5_after == md5_before)
end
def check_change
tag = Mp3Tag.new(Mp3File)
yield(tag)
tag.commit
tagnow = Mp3Tag.new(Mp3File)
assert_equal tag.songname, tagnow.songname
assert_equal tag.artist, tagnow.artist
assert_equal tag.album, tagnow.album
assert_equal tag.artist, tagnow.artist
assert_equal tag.album, tagnow.album
assert_equal tag.year, tagnow.year
assert_equal tag.genre_id, tagnow.genre_id
assert_equal tag.comment, tagnow.comment
assert_equal tag.tracknum, tagnow.tracknum
end
def test_edit
Mp3Tag.removetag(Mp3File)
[ 'songname', 'artist', 'album', 'comment' ].each { |attr|
check_change { |tag|
tag.send("#{attr}=", "Test #{attr}")
}
}
check_change { |tag|
tag.year = 1923
}
check_change { |tag|
tag.year = "1923"
}
check_change { |tag|
tag.genre_id = 128
}
check_change { |tag|
tag.genre_id = "128"
}
check_change { |tag|
tag.tracknum = 23
}
check_change { |tag|
tag.tracknum = "23"
}
check_change { |tag|
tag.genre_id = 38
}
check_change { |tag|
tag.genre_id = "38"
}
end
def test_genres
tag = Mp3Tag.new(Mp3File)
tag.genre_id = 38
assert_equal(tag.genre, "Gospel")
tag.genre = "Noise"
assert_equal(tag.genre_id, 39)
end
def test_overfull
longstring = "ANameWhichIsLongerThan30Characters"
tag = Mp3Tag.new(Mp3File)
tag.songname = longstring
tag.artist = "Artist"
tag.comment = longstring
tag.tracknum = 88
tag.commit
ntag = Mp3Tag.new(Mp3File)
assert_equal(longstring[0,30], ntag.songname)
assert_equal(tag.artist, ntag.artist)
assert_equal(longstring[0,28], ntag.comment)
assert_equal(tag.tracknum, ntag.tracknum)
end
def test_newtag
Mp3Tag.removetag(Mp3File)
tag = Mp3Tag.new(Mp3File)
assert_equal(255, tag.genre_id)
assert_equal(0, tag.year)
assert_equal(0, tag.tracknum)
assert_equal('', tag.songname)
assert_equal('', tag.artist)
assert_equal('', tag.album)
assert_equal('', tag.comment)
end
def test_misc
tag = Mp3Tag.new(Mp3File)
tag.genre = "NoSuchGenre"
assert_equal(255, tag.genre_id)
assert_equal("Unknown", tag.genre)
end
end
if $0 == __FILE__
if (ARGV[0].nil?) || (!FileTest.file? ARGV[0])
$stderr.puts "Must supply a name of an existing mp3 filename as argument.
The file will be copied before modified - your original will never be changed."
exit 1
end
require 'runit/cui/testrunner'
RUNIT::CUI::TestRunner.run(Mp3TagTest.suite)
end
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