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# Copyright © 2016 Kimihito Matsui (松井 仁人) and Martin J. Dürst (duerst@it.aoyama.ac.jp)
require "test/unit"
# preliminary tests, using as a guard
# to test new implementation strategy
class TestCaseMappingPreliminary < Test::Unit::TestCase
# checks, including idempotence and non-modification; not always guaranteed
def check_upcase_properties(expected, start, *flags)
assert_equal expected, start.upcase(*flags)
temp = start.dup
assert_equal expected, temp.upcase!(*flags) unless expected==temp
assert_equal nil, temp.upcase!(*flags) if expected==temp
assert_equal expected, expected.upcase(*flags)
temp = expected.dup
assert_nil temp.upcase!(*flags)
end
def check_downcase_properties(expected, start, *flags)
assert_equal expected, start.downcase(*flags)
temp = start.dup
assert_equal expected, temp.downcase!(*flags) unless expected==temp
assert_equal nil, temp.downcase!(*flags) if expected==temp
assert_equal expected, expected.downcase(*flags)
temp = expected.dup
assert_nil temp.downcase!(*flags)
end
def check_capitalize_properties(expected, start, *flags)
assert_equal expected, start.capitalize(*flags)
temp = start.dup
assert_equal expected, temp.capitalize!(*flags) unless expected==temp
assert_equal nil, temp.capitalize!(*flags) if expected==temp
assert_equal expected, expected.capitalize(*flags)
temp = expected.dup
assert_nil temp.capitalize!(*flags)
end
def check_capitalize_suffixes(lower, upper)
while upper.length > 1
lower = lower[1..-1]
check_capitalize_properties upper[0]+lower, upper
upper = upper[1..-1]
end
end
# different properties; careful: roundtrip isn't always guaranteed
def check_swapcase_properties(expected, start, *flags)
assert_equal expected, start.swapcase(*flags)
temp = +start
assert_equal expected, temp.swapcase!(*flags)
assert_equal start, start.swapcase(*flags).swapcase(*flags)
assert_equal expected, expected.swapcase(*flags).swapcase(*flags)
end
def test_ascii
check_downcase_properties 'yukihiro matsumoto (matz)', 'Yukihiro MATSUMOTO (MATZ)'
check_upcase_properties 'YUKIHIRO MATSUMOTO (MATZ)', 'yukihiro matsumoto (matz)'
check_capitalize_properties 'Yukihiro matsumoto (matz)', 'yukihiro MATSUMOTO (MATZ)'
check_swapcase_properties 'yUKIHIRO matsumoto (MAtz)', 'Yukihiro MATSUMOTO (maTZ)'
end
def test_invalid
assert_raise(ArgumentError, "Should not be possible to upcase invalid string.") { "\xEB".dup.force_encoding('UTF-8').upcase }
assert_raise(ArgumentError, "Should not be possible to downcase invalid string.") { "\xEB".dup.force_encoding('UTF-8').downcase }
assert_raise(ArgumentError, "Should not be possible to capitalize invalid string.") { "\xEB".dup.force_encoding('UTF-8').capitalize }
assert_raise(ArgumentError, "Should not be possible to swapcase invalid string.") { "\xEB".dup.force_encoding('UTF-8').swapcase }
end
def test_general
check_downcase_properties 'résumé dürst ĭñŧėřŋãţijňőńæłĩżàťïōņ', 'RÉSUMÉ DÜRST ĬÑŦĖŘŊÃŢIJŇŐŃÆŁĨŻÀŤÏŌŅ'
check_upcase_properties 'RÉSUMÉ DÜRST ĬÑŦĖŘŊÃŢIJŇŐŃÆŁĨŻÀŤÏŌŅ', 'résumé dürst ĭñŧėřŋãţijňőńæłĩżàťïōņ'
check_capitalize_suffixes 'résumé dürst ĭñŧėřŋãţijňőńæłĩżàťïōņ', 'RÉSUMÉ DÜRST ĬÑŦĖŘŊÃŢIJŇŐŃÆŁĨŻÀŤÏŌŅ'
check_swapcase_properties 'résumé DÜRST ĭñŧėřŊÃŢIJŇŐŃæłĩżàťïōņ', 'RÉSUMÉ dürst ĬÑŦĖŘŋãţijňőńÆŁĨŻÀŤÏŌŅ'
end
def test_one_way_upcase
check_upcase_properties 'ΜΜΜΜΜ', 'µµµµµ' # MICRO SIGN -> Greek Mu
check_downcase_properties 'µµµµµ', 'µµµµµ' # MICRO SIGN -> Greek Mu
check_capitalize_properties 'Μµµµµ', 'µµµµµ' # MICRO SIGN -> Greek Mu
check_capitalize_properties 'Μµµµµ', 'µµµµµ', :turkic # MICRO SIGN -> Greek Mu
check_capitalize_properties 'H̱ẖẖẖẖ', 'ẖẖẖẖẖ'
check_capitalize_properties 'Βϐϐϐϐ', 'ϐϐϐϐϐ'
check_capitalize_properties 'Θϑϑϑϑ', 'ϑϑϑϑϑ'
check_capitalize_properties 'Φϕ', 'ϕϕ'
check_capitalize_properties 'Πϖ', 'ϖϖ'
check_capitalize_properties 'Κϰ', 'ϰϰ'
check_capitalize_properties 'Ρϱϱ', 'ϱϱϱ'
check_capitalize_properties 'Εϵ', 'ϵϵ'
check_capitalize_properties 'Ιͅͅͅͅ', 'ͅͅͅͅͅ'
check_capitalize_properties 'Sſſſſ', 'ſſſſſ'
end
def test_various
check_upcase_properties 'Μ', 'µ' # MICRO SIGN -> Greek Mu
check_downcase_properties 'µµµµµ', 'µµµµµ' # MICRO SIGN
check_capitalize_properties 'Ss', 'ß'
check_upcase_properties 'SS', 'ß'
end
def test_cherokee
check_downcase_properties "\uab70\uab71\uab72\uab73\uab74\uab75\uab76\uab77\uab78\uab79", 'ᎠᎡᎢᎣᎤᎥᎦᎧᎨᎩ'
check_upcase_properties 'ᎠᎡᎢᎣᎤᎥᎦᎧᎨᎩ', "\uab70\uab71\uab72\uab73\uab74\uab75\uab76\uab77\uab78\uab79"
check_capitalize_suffixes "\uab70\uab71\uab72\uab73\uab74\uab75\uab76\uab77\uab78\uab79", 'ᎠᎡᎢᎣᎤᎥᎦᎧᎨᎩ'
assert_equal 'ᎠᎡᎢᎣᎤᎥᎦᎧᎨᎩ', 'ᎠᎡᎢᎣᎤᎥᎦᎧᎨᎩ'.downcase(:fold)
assert_equal 'ᎠᎡᎢᎣᎤᎥᎦᎧᎨᎩ', "\uab70\uab71\uab72\uab73\uab74\uab75\uab76\uab77\uab78\uab79".downcase(:fold)
end
def test_titlecase
check_downcase_properties 'dz dž lj nj', 'Dz Dž Lj Nj'
check_downcase_properties 'dz dž lj nj', 'DZ DŽ LJ NJ'
check_upcase_properties 'DZ DŽ LJ NJ', 'Dz Dž Lj Nj'
check_upcase_properties 'DZ DŽ LJ NJ', 'dz dž lj nj'
check_capitalize_properties 'Dz', 'DZ'
check_capitalize_properties 'Dž', 'DŽ'
check_capitalize_properties 'Lj', 'LJ'
check_capitalize_properties 'Nj', 'NJ'
check_capitalize_properties 'Dz', 'dz'
check_capitalize_properties 'Dž', 'dž'
check_capitalize_properties 'Lj', 'lj'
check_capitalize_properties 'Nj', 'nj'
end
def test_swapcase
assert_equal 'dZ', 'Dz'.swapcase
assert_equal 'dŽ', 'Dž'.swapcase
assert_equal 'lJ', 'Lj'.swapcase
assert_equal 'nJ', 'Nj'.swapcase
assert_equal 'ἀΙ', 'ᾈ'.swapcase
assert_equal 'ἣΙ', 'ᾛ'.swapcase
assert_equal 'ὧΙ', 'ᾯ'.swapcase
assert_equal 'αΙ', 'ᾼ'.swapcase
assert_equal 'ηΙ', 'ῌ'.swapcase
assert_equal 'ωΙ', 'ῼ'.swapcase
end
def test_ascii_option
check_downcase_properties 'yukihiro matsumoto (matz)', 'Yukihiro MATSUMOTO (MATZ)', :ascii
check_upcase_properties 'YUKIHIRO MATSUMOTO (MATZ)', 'yukihiro matsumoto (matz)', :ascii
check_capitalize_properties 'Yukihiro matsumoto (matz)', 'yukihiro MATSUMOTO (MATZ)', :ascii
check_swapcase_properties 'yUKIHIRO matsumoto (MAtz)', 'Yukihiro MATSUMOTO (maTZ)', :ascii
check_downcase_properties 'yukİhİro matsumoto (matz)', 'YUKİHİRO MATSUMOTO (MATZ)', :ascii
check_downcase_properties 'rÉsumÉ dÜrst ĬÑŦĖŘŊÃŢIJŇŐŃÆŁĨŻÀŤĬŌŅ', 'RÉSUMÉ DÜRST ĬÑŦĖŘŊÃŢIJŇŐŃÆŁĨŻÀŤĬŌŅ', :ascii
check_swapcase_properties 'rÉsumÉ dÜrst ĬÑŦĖŘŊÃŢIJŇŐŃÆŁĨŻÀŤĬŌŅ', 'RÉSUMÉ DÜRST ĬÑŦĖŘŊÃŢIJŇŐŃÆŁĨŻÀŤĬŌŅ', :ascii
end
def test_fold_option
check_downcase_properties 'ss', 'ß', :fold
check_downcase_properties 'fifl', 'fifl', :fold
check_downcase_properties 'σ', 'ς', :fold
check_downcase_properties 'μ', 'µ', :fold # MICRO SIGN -> Greek mu
end
def test_turcic
check_downcase_properties 'yukihiro matsumoto (matz)', 'Yukihiro MATSUMOTO (MATZ)', :turkic
check_upcase_properties 'YUKİHİRO MATSUMOTO (MATZ)', 'Yukihiro Matsumoto (matz)', :turkic
check_downcase_properties "yuki\u0307hi\u0307ro matsumoto (matz)", 'YUKİHİRO MATSUMOTO (MATZ)'
end
def test_greek
check_downcase_properties 'αβγδεζηθικλμνξοπρστυφχψω', 'ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ'
check_upcase_properties 'ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ', 'αβγδεζηθικλμνξοπρστυφχψω'
end
# This test checks against problems when changing the order of mapping results
# in some of the entries of the unfolding table (related to
# https://bugs.ruby-lang.org/issues/12990).
def test_reorder_unfold
# GREEK SMALL LETTER IOTA
assert_equal 0, "\u03B9" =~ /\u0345/i
assert_equal 0, "\u0345" =~ /\u03B9/i
assert_equal 0, "\u03B9" =~ /\u0399/i
assert_equal 0, "\u0399" =~ /\u03B9/i
assert_equal 0, "\u03B9" =~ /\u1fbe/i
assert_equal 0, "\u1fbe" =~ /\u03B9/i
# GREEK SMALL LETTER MU
assert_equal 0, "\u03BC" =~ /\u00B5/i
assert_equal 0, "\u00B5" =~ /\u03BC/i
assert_equal 0, "\u03BC" =~ /\u039C/i
assert_equal 0, "\u039C" =~ /\u03BC/i
# CYRILLIC SMALL LETTER MONOGRAPH UK
assert_equal 0, "\uA64B" =~ /\u1c88/i
assert_equal 0, "\u1c88" =~ /\uA64B/i
assert_equal 0, "\uA64B" =~ /\ua64A/i
assert_equal 0, "\ua64A" =~ /\uA64B/i
end
def test_georgian_canary
message = "Reexamine implementation of Georgian in String#capitalize"
assert_equal false, "\u1CBB".match?(/\p{assigned}/), message
assert_equal false, "\u1CBC".match?(/\p{assigned}/), message
end
def test_georgian_unassigned
message = "Unassigned codepoints should not be converted"
assert_equal "\u1CBB", "\u1CBB".capitalize, message
assert_equal "\u1CBC", "\u1CBC".capitalize, message
end
def test_georgian_capitalize
assert_equal "\u10D0\u10D1\u10D2", "\u1C90\u1C91\u1C92".capitalize
assert_equal "\u10D0\u10D1\u10D2", "\u1C90\u1C91\u10D2".capitalize
assert_equal "\u10D0\u10D1\u10D2", "\u1C90\u10D1\u1C92".capitalize
assert_equal "\u10D0\u10D1\u10D2", "\u1C90\u10D1\u10D2".capitalize
assert_equal "\u10D0\u10D1\u10D2", "\u10D0\u1C91\u1C92".capitalize
assert_equal "\u10D0\u10D1\u10D2", "\u10D0\u1C91\u10D2".capitalize
assert_equal "\u10D0\u10D1\u10D2", "\u10D0\u10D1\u1C92".capitalize
assert_equal "\u10D0\u10D1\u10D2", "\u10D0\u10D1\u10D2".capitalize
end
def test_shift_jis_downcase_ascii
s = ("A".."Z").map {|c| "\x89#{c}"}.join("").force_encoding("Shift_JIS")
assert_equal s, s.downcase(:ascii)
end
def test_shift_jis_upcase_ascii
s = ("a".."z").map {|c| "\x89#{c}"}.join("").force_encoding("Shift_JIS")
assert_equal s, s.upcase(:ascii)
end
def no_longer_a_test_buffer_allocations
assert_equal 'TURKISH*ı'*10, ('I'*10).downcase(:turkic)
assert_equal 'TURKISH*ı'*100, ('I'*100).downcase(:turkic)
assert_equal 'TURKISH*ı'*1_000, ('I'*1_000).downcase(:turkic)
assert_equal 'TURKISH*ı'*10_000, ('I'*10_000).downcase(:turkic)
assert_equal 'TURKISH*ı'*100_000, ('I'*100_000).downcase(:turkic)
assert_equal 'TURKISH*ı'*1_000_000, ('I'*1_000_000).downcase(:turkic)
end
end
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