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# encoding: utf-8
require 'abstract_unit'
require 'multibyte_test_helpers'
class String
def __method_for_multibyte_testing_with_integer_result; 1; end
def __method_for_multibyte_testing; 'result'; end
def __method_for_multibyte_testing!; 'result'; end
end
class MultibyteCharsTest < Test::Unit::TestCase
include MultibyteTestHelpers
def setup
@proxy_class = ActiveSupport::Multibyte::Chars
@chars = @proxy_class.new UNICODE_STRING
end
def test_wraps_the_original_string
assert_equal UNICODE_STRING, @chars.to_s
assert_equal UNICODE_STRING, @chars.wrapped_string
end
def test_should_allow_method_calls_to_string
assert_nothing_raised do
@chars.__method_for_multibyte_testing
end
assert_raises NoMethodError do
@chars.__unknown_method
end
end
def test_forwarded_method_calls_should_return_new_chars_instance
assert @chars.__method_for_multibyte_testing.kind_of?(@proxy_class)
assert_not_equal @chars.object_id, @chars.__method_for_multibyte_testing.object_id
end
def test_forwarded_bang_method_calls_should_return_the_original_chars_instance
assert @chars.__method_for_multibyte_testing!.kind_of?(@proxy_class)
assert_equal @chars.object_id, @chars.__method_for_multibyte_testing!.object_id
end
def test_methods_are_forwarded_to_wrapped_string_for_byte_strings
assert_equal BYTE_STRING.class, BYTE_STRING.mb_chars.class
end
def test_forwarded_method_with_non_string_result_should_be_returned_vertabim
assert_equal ''.__method_for_multibyte_testing_with_integer_result, @chars.__method_for_multibyte_testing_with_integer_result
end
def test_should_concatenate
assert_equal 'ab', 'a'.mb_chars + 'b'
assert_equal 'ab', 'a' + 'b'.mb_chars
assert_equal 'ab', 'a'.mb_chars + 'b'.mb_chars
assert_equal 'ab', 'a'.mb_chars << 'b'
assert_equal 'ab', 'a' << 'b'.mb_chars
assert_equal 'ab', 'a'.mb_chars << 'b'.mb_chars
end
def test_consumes_utf8_strings
assert @proxy_class.consumes?(UNICODE_STRING)
assert @proxy_class.consumes?(ASCII_STRING)
assert !@proxy_class.consumes?(BYTE_STRING)
end
def test_unpack_utf8_strings
assert_equal 4, @proxy_class.u_unpack(UNICODE_STRING).length
assert_equal 5, @proxy_class.u_unpack(ASCII_STRING).length
end
def test_unpack_raises_encoding_error_on_broken_strings
assert_raises(ActiveSupport::Multibyte::EncodingError) do
@proxy_class.u_unpack(BYTE_STRING)
end
end
if RUBY_VERSION < '1.9'
def test_concatenation_should_return_a_proxy_class_instance
assert_equal ActiveSupport::Multibyte.proxy_class, ('a'.mb_chars + 'b').class
assert_equal ActiveSupport::Multibyte.proxy_class, ('a'.mb_chars << 'b').class
end
def test_ascii_strings_are_treated_at_utf8_strings
assert_equal ActiveSupport::Multibyte.proxy_class, ASCII_STRING.mb_chars.class
end
def test_concatenate_should_return_proxy_instance
assert(('a'.mb_chars + 'b').kind_of?(@proxy_class))
assert(('a'.mb_chars + 'b'.mb_chars).kind_of?(@proxy_class))
assert(('a'.mb_chars << 'b').kind_of?(@proxy_class))
assert(('a'.mb_chars << 'b'.mb_chars).kind_of?(@proxy_class))
end
end
end
class MultibyteCharsUTF8BehaviourTest < Test::Unit::TestCase
include MultibyteTestHelpers
def setup
@chars = UNICODE_STRING.dup.mb_chars
# NEWLINE, SPACE, EM SPACE
@whitespace = "\n#{[32, 8195].pack('U*')}"
@whitespace.force_encoding(Encoding::UTF_8) if @whitespace.respond_to?(:force_encoding)
@byte_order_mark = [65279].pack('U')
end
if RUBY_VERSION < '1.9'
def test_split_should_return_an_array_of_chars_instances
@chars.split(//).each do |character|
assert character.kind_of?(ActiveSupport::Multibyte.proxy_class)
end
end
def test_indexed_insert_accepts_fixnums
@chars[2] = 32
assert_equal 'こに わ', @chars
end
def test_overridden_bang_methods_return_self
[:rstrip!, :lstrip!, :strip!, :reverse!, :upcase!, :downcase!, :capitalize!].each do |method|
assert_equal @chars.object_id, @chars.send(method).object_id
end
assert_equal @chars.object_id, @chars.slice!(1).object_id
end
def test_overridden_bang_methods_change_wrapped_string
[:rstrip!, :lstrip!, :strip!, :reverse!, :upcase!, :downcase!].each do |method|
original = ' Café '
proxy = chars(original.dup)
proxy.send(method)
assert_not_equal original, proxy.to_s
end
proxy = chars('Café')
proxy.slice!(3)
assert_equal 'é', proxy.to_s
proxy = chars('òu')
proxy.capitalize!
assert_equal 'Òu', proxy.to_s
end
end
if RUBY_VERSION >= '1.9'
def test_unicode_string_should_have_utf8_encoding
assert_equal Encoding::UTF_8, UNICODE_STRING.encoding
end
end
def test_identity
assert_equal @chars, @chars
assert @chars.eql?(@chars)
if RUBY_VERSION <= '1.9'
assert !@chars.eql?(UNICODE_STRING)
else
assert @chars.eql?(UNICODE_STRING)
end
end
def test_string_methods_are_chainable
assert chars('').insert(0, '').kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').rjust(1).kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').ljust(1).kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').center(1).kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').rstrip.kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').lstrip.kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').strip.kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').reverse.kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars(' ').slice(0).kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').upcase.kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').downcase.kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').capitalize.kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').normalize.kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').decompose.kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').compose.kind_of?(ActiveSupport::Multibyte.proxy_class)
assert chars('').tidy_bytes.kind_of?(ActiveSupport::Multibyte.proxy_class)
end
def test_should_be_equal_to_the_wrapped_string
assert_equal UNICODE_STRING, @chars
assert_equal @chars, UNICODE_STRING
end
def test_should_not_be_equal_to_an_other_string
assert_not_equal @chars, 'other'
assert_not_equal 'other', @chars
end
def test_sortability
words = %w(builder armor zebra).map(&:mb_chars).sort
assert_equal %w(armor builder zebra), words
end
def test_should_return_character_offset_for_regexp_matches
assert_nil(@chars =~ /wrong/u)
assert_equal 0, (@chars =~ //u)
assert_equal 1, (@chars =~ //u)
assert_equal 3, (@chars =~ //u)
end
def test_should_use_character_offsets_for_insert_offsets
assert_equal '', ''.mb_chars.insert(0, '')
assert_equal 'こわにちわ', @chars.insert(1, '')
assert_equal 'こわわわにちわ', @chars.insert(2, 'わわ')
assert_equal 'わこわわわにちわ', @chars.insert(0, '')
assert_equal 'わこわわわにちわ', @chars.wrapped_string if RUBY_VERSION < '1.9'
end
def test_insert_should_be_destructive
@chars.insert(1, '')
assert_equal 'こわにちわ', @chars
end
def test_insert_throws_index_error
assert_raises(IndexError) { @chars.insert(-12, '')}
assert_raises(IndexError) { @chars.insert(12, '') }
end
def test_should_know_if_one_includes_the_other
assert @chars.include?('')
assert @chars.include?('')
assert @chars.include?('')
assert !@chars.include?('こちわ')
assert !@chars.include?('a')
end
def test_include_raises_type_error_when_nil_is_passed
assert_raises(TypeError) do
@chars.include?(nil)
end
end
def test_index_should_return_character_offset
assert_nil @chars.index('u')
assert_equal 0, @chars.index('こに')
assert_equal 2, @chars.index('')
assert_equal 3, @chars.index('')
end
def test_indexed_insert_should_take_character_offsets
@chars[2] = 'a'
assert_equal 'こにaわ', @chars
@chars[2] = 'ηη'
assert_equal 'こにηηわ', @chars
@chars[3, 2] = 'λλλ'
assert_equal 'こにηλλλ', @chars
@chars[1, 0] = "λ"
assert_equal 'こλにηλλλ', @chars
@chars[4..6] = "ηη"
assert_equal 'こλにηηη', @chars
@chars[/ηη/] = "λλλ"
assert_equal 'こλにλλλη', @chars
@chars[/(λλ)(.)/, 2] = "α"
assert_equal 'こλにλλαη', @chars
@chars["α"] = "¢"
assert_equal 'こλにλλ¢η', @chars
@chars["λλ"] = "ααα"
assert_equal 'こλにααα¢η', @chars
end
def test_indexed_insert_should_raise_on_index_overflow
before = @chars.to_s
assert_raises(IndexError) { @chars[10] = 'a' }
assert_raises(IndexError) { @chars[10, 4] = 'a' }
assert_raises(IndexError) { @chars[/ii/] = 'a' }
assert_raises(IndexError) { @chars[/()/, 10] = 'a' }
assert_equal before, @chars
end
def test_indexed_insert_should_raise_on_range_overflow
before = @chars.to_s
assert_raises(RangeError) { @chars[10..12] = 'a' }
assert_equal before, @chars
end
def test_rjust_should_raise_argument_errors_on_bad_arguments
assert_raises(ArgumentError) { @chars.rjust(10, '') }
assert_raises(ArgumentError) { @chars.rjust }
end
def test_rjust_should_count_characters_instead_of_bytes
assert_equal UNICODE_STRING, @chars.rjust(-3)
assert_equal UNICODE_STRING, @chars.rjust(0)
assert_equal UNICODE_STRING, @chars.rjust(4)
assert_equal " #{UNICODE_STRING}", @chars.rjust(5)
assert_equal " #{UNICODE_STRING}", @chars.rjust(7)
assert_equal "---#{UNICODE_STRING}", @chars.rjust(7, '-')
assert_equal "ααα#{UNICODE_STRING}", @chars.rjust(7, 'α')
assert_equal "aba#{UNICODE_STRING}", @chars.rjust(7, 'ab')
assert_equal "αηα#{UNICODE_STRING}", @chars.rjust(7, 'αη')
assert_equal "αηαη#{UNICODE_STRING}", @chars.rjust(8, 'αη')
end
def test_ljust_should_raise_argument_errors_on_bad_arguments
assert_raises(ArgumentError) { @chars.ljust(10, '') }
assert_raises(ArgumentError) { @chars.ljust }
end
def test_ljust_should_count_characters_instead_of_bytes
assert_equal UNICODE_STRING, @chars.ljust(-3)
assert_equal UNICODE_STRING, @chars.ljust(0)
assert_equal UNICODE_STRING, @chars.ljust(4)
assert_equal "#{UNICODE_STRING} ", @chars.ljust(5)
assert_equal "#{UNICODE_STRING} ", @chars.ljust(7)
assert_equal "#{UNICODE_STRING}---", @chars.ljust(7, '-')
assert_equal "#{UNICODE_STRING}ααα", @chars.ljust(7, 'α')
assert_equal "#{UNICODE_STRING}aba", @chars.ljust(7, 'ab')
assert_equal "#{UNICODE_STRING}αηα", @chars.ljust(7, 'αη')
assert_equal "#{UNICODE_STRING}αηαη", @chars.ljust(8, 'αη')
end
def test_center_should_raise_argument_errors_on_bad_arguments
assert_raises(ArgumentError) { @chars.center(10, '') }
assert_raises(ArgumentError) { @chars.center }
end
def test_center_should_count_charactes_instead_of_bytes
assert_equal UNICODE_STRING, @chars.center(-3)
assert_equal UNICODE_STRING, @chars.center(0)
assert_equal UNICODE_STRING, @chars.center(4)
assert_equal "#{UNICODE_STRING} ", @chars.center(5)
assert_equal " #{UNICODE_STRING} ", @chars.center(6)
assert_equal " #{UNICODE_STRING} ", @chars.center(7)
assert_equal "--#{UNICODE_STRING}--", @chars.center(8, '-')
assert_equal "--#{UNICODE_STRING}---", @chars.center(9, '-')
assert_equal "αα#{UNICODE_STRING}αα", @chars.center(8, 'α')
assert_equal "αα#{UNICODE_STRING}ααα", @chars.center(9, 'α')
assert_equal "a#{UNICODE_STRING}ab", @chars.center(7, 'ab')
assert_equal "ab#{UNICODE_STRING}ab", @chars.center(8, 'ab')
assert_equal "abab#{UNICODE_STRING}abab", @chars.center(12, 'ab')
assert_equal "α#{UNICODE_STRING}αη", @chars.center(7, 'αη')
assert_equal "αη#{UNICODE_STRING}αη", @chars.center(8, 'αη')
end
def test_lstrip_strips_whitespace_from_the_left_of_the_string
assert_equal UNICODE_STRING, UNICODE_STRING.mb_chars.lstrip
assert_equal UNICODE_STRING, (@whitespace + UNICODE_STRING).mb_chars.lstrip
assert_equal UNICODE_STRING + @whitespace, (@whitespace + UNICODE_STRING + @whitespace).mb_chars.lstrip
end
def test_rstrip_strips_whitespace_from_the_right_of_the_string
assert_equal UNICODE_STRING, UNICODE_STRING.mb_chars.rstrip
assert_equal UNICODE_STRING, (UNICODE_STRING + @whitespace).mb_chars.rstrip
assert_equal @whitespace + UNICODE_STRING, (@whitespace + UNICODE_STRING + @whitespace).mb_chars.rstrip
end
def test_strip_strips_whitespace
assert_equal UNICODE_STRING, UNICODE_STRING.mb_chars.strip
assert_equal UNICODE_STRING, (@whitespace + UNICODE_STRING).mb_chars.strip
assert_equal UNICODE_STRING, (UNICODE_STRING + @whitespace).mb_chars.strip
assert_equal UNICODE_STRING, (@whitespace + UNICODE_STRING + @whitespace).mb_chars.strip
end
def test_stripping_whitespace_leaves_whitespace_within_the_string_intact
string_with_whitespace = UNICODE_STRING + @whitespace + UNICODE_STRING
assert_equal string_with_whitespace, string_with_whitespace.mb_chars.strip
assert_equal string_with_whitespace, string_with_whitespace.mb_chars.lstrip
assert_equal string_with_whitespace, string_with_whitespace.mb_chars.rstrip
end
def test_size_returns_characters_instead_of_bytes
assert_equal 0, ''.mb_chars.size
assert_equal 4, @chars.size
assert_equal 4, @chars.length
assert_equal 5, ASCII_STRING.mb_chars.size
end
def test_reverse_reverses_characters
assert_equal '', ''.mb_chars.reverse
assert_equal 'わちにこ', @chars.reverse
end
def test_slice_should_take_character_offsets
assert_equal nil, ''.mb_chars.slice(0)
assert_equal '', @chars.slice(0)
assert_equal '', @chars.slice(3)
assert_equal nil, ''.mb_chars.slice(-1..1)
assert_equal '', ''.mb_chars.slice(0..10)
assert_equal 'にちわ', @chars.slice(1..3)
assert_equal 'にちわ', @chars.slice(1, 3)
assert_equal '', @chars.slice(0, 1)
assert_equal 'ちわ', @chars.slice(2..10)
assert_equal '', @chars.slice(4..10)
assert_equal '', @chars.slice(//u)
assert_equal 'にち', @chars.slice(/\w/u)
assert_equal nil, @chars.slice(/unknown/u)
assert_equal 'にち', @chars.slice(/(にち)/u, 1)
assert_equal nil, @chars.slice(/(にち)/u, 2)
assert_equal nil, @chars.slice(7..6)
end
def test_slice_should_throw_exceptions_on_invalid_arguments
assert_raise(TypeError) { @chars.slice(2..3, 1) }
assert_raise(TypeError) { @chars.slice(1, 2..3) }
assert_raise(ArgumentError) { @chars.slice(1, 1, 1) }
end
def test_ord_should_return_unicode_value_for_first_character
assert_equal 12371, @chars.ord
end
def test_upcase_should_upcase_ascii_characters
assert_equal '', ''.mb_chars.upcase
assert_equal 'ABC', 'aBc'.mb_chars.upcase
end
def test_downcase_should_downcase_ascii_characters
assert_equal '', ''.mb_chars.downcase
assert_equal 'abc', 'aBc'.mb_chars.downcase
end
def test_capitalize_should_work_on_ascii_characters
assert_equal '', ''.mb_chars.capitalize
assert_equal 'Abc', 'abc'.mb_chars.capitalize
end
def test_respond_to_knows_which_methods_the_proxy_responds_to
assert ''.mb_chars.respond_to?(:slice) # Defined on Chars
assert ''.mb_chars.respond_to?(:capitalize!) # Defined on Chars
assert ''.mb_chars.respond_to?(:gsub) # Defined on String
assert !''.mb_chars.respond_to?(:undefined_method) # Not defined
end
def test_acts_like_string
assert 'Bambi'.mb_chars.acts_like_string?
end
end
# The default Multibyte Chars proxy has more features than the normal string implementation. Tests
# for the implementation of these features should run on all Ruby versions and shouldn't be tested
# through the proxy methods.
class MultibyteCharsExtrasTest < Test::Unit::TestCase
include MultibyteTestHelpers
if RUBY_VERSION >= '1.9'
def test_tidy_bytes_is_broken_on_1_9_0
assert_raises(ArgumentError) do
assert_equal_codepoints [0xfffd].pack('U'), chars("\xef\xbf\xbd").tidy_bytes
end
end
end
def test_upcase_should_be_unicode_aware
assert_equal "АБВГД\0F", chars("аБвгд\0f").upcase
assert_equal 'こにちわ', chars('こにちわ').upcase
end
def test_downcase_should_be_unicode_aware
assert_equal "абвгд\0f", chars("аБвгд\0f").downcase
assert_equal 'こにちわ', chars('こにちわ').downcase
end
def test_capitalize_should_be_unicode_aware
{ 'аБвг аБвг' => 'Абвг абвг',
'аБвг АБВГ' => 'Абвг абвг',
'АБВГ АБВГ' => 'Абвг абвг',
'' => '' }.each do |f,t|
assert_equal t, chars(f).capitalize
end
end
def test_composition_exclusion_is_set_up_properly
# Normalization of DEVANAGARI LETTER QA breaks when composition exclusion isn't used correctly
qa = [0x915, 0x93c].pack('U*')
assert_equal qa, chars(qa).normalize(:c)
end
# Test for the Public Review Issue #29, bad explanation of composition might lead to a
# bad implementation: http://www.unicode.org/review/pr-29.html
def test_normalization_C_pri_29
[
[0x0B47, 0x0300, 0x0B3E],
[0x1100, 0x0300, 0x1161]
].map { |c| c.pack('U*') }.each do |c|
assert_equal_codepoints c, chars(c).normalize(:c)
end
end
def test_normalization_shouldnt_strip_null_bytes
null_byte_str = "Test\0test"
assert_equal null_byte_str, chars(null_byte_str).normalize(:kc)
assert_equal null_byte_str, chars(null_byte_str).normalize(:c)
assert_equal null_byte_str, chars(null_byte_str).normalize(:d)
assert_equal null_byte_str, chars(null_byte_str).normalize(:kd)
assert_equal null_byte_str, chars(null_byte_str).decompose
assert_equal null_byte_str, chars(null_byte_str).compose
end
def test_simple_normalization
comp_str = [
44, # LATIN CAPITAL LETTER D
307, # COMBINING DOT ABOVE
328, # COMBINING OGONEK
323 # COMBINING DOT BELOW
].pack("U*")
assert_equal_codepoints '', chars('').normalize
assert_equal_codepoints [44,105,106,328,323].pack("U*"), chars(comp_str).normalize(:kc).to_s
assert_equal_codepoints [44,307,328,323].pack("U*"), chars(comp_str).normalize(:c).to_s
assert_equal_codepoints [44,307,110,780,78,769].pack("U*"), chars(comp_str).normalize(:d).to_s
assert_equal_codepoints [44,105,106,110,780,78,769].pack("U*"), chars(comp_str).normalize(:kd).to_s
end
def test_should_compute_grapheme_length
[
['', 0],
['abc', 3],
['こにちわ', 4],
[[0x0924, 0x094D, 0x0930].pack('U*'), 2],
[%w(cr lf), 1],
[%w(l l), 1],
[%w(l v), 1],
[%w(l lv), 1],
[%w(l lvt), 1],
[%w(lv v), 1],
[%w(lv t), 1],
[%w(v v), 1],
[%w(v t), 1],
[%w(lvt t), 1],
[%w(t t), 1],
[%w(n extend), 1],
[%w(n n), 2],
[%w(n cr lf n), 3],
[%w(n l v t), 2]
].each do |input, expected_length|
if input.kind_of?(Array)
str = string_from_classes(input)
else
str = input
end
assert_equal expected_length, chars(str).g_length
end
end
def test_tidy_bytes_should_tidy_bytes
byte_string = "\270\236\010\210\245"
tidy_string = [0xb8, 0x17e, 0x8, 0x2c6, 0xa5].pack('U*')
ascii_padding = 'aa'
utf8_padding = 'éé'
assert_equal_codepoints tidy_string, chars(byte_string).tidy_bytes
assert_equal_codepoints ascii_padding.dup.insert(1, tidy_string),
chars(ascii_padding.dup.insert(1, byte_string)).tidy_bytes
assert_equal_codepoints utf8_padding.dup.insert(2, tidy_string),
chars(utf8_padding.dup.insert(2, byte_string)).tidy_bytes
assert_nothing_raised { chars(byte_string).tidy_bytes.to_s.unpack('U*') }
assert_equal_codepoints "\xC3\xA7", chars("\xE7").tidy_bytes # iso_8859_1: small c cedilla
assert_equal_codepoints "\xE2\x80\x9C", chars("\x93").tidy_bytes # win_1252: left smart quote
assert_equal_codepoints "\xE2\x82\xAC", chars("\x80").tidy_bytes # win_1252: euro
assert_equal_codepoints "\x00", chars("\x00").tidy_bytes # null char
assert_equal_codepoints [0xfffd].pack('U'), chars("\xef\xbf\xbd").tidy_bytes # invalid char
rescue ArgumentError => e
raise e if RUBY_VERSION < '1.9'
end
private
def string_from_classes(classes)
# Characters from the character classes as described in UAX #29
character_from_class = {
:l => 0x1100, :v => 0x1160, :t => 0x11A8, :lv => 0xAC00, :lvt => 0xAC01, :cr => 0x000D, :lf => 0x000A,
:extend => 0x094D, :n => 0x64
}
classes.collect do |k|
character_from_class[k.intern]
end.pack('U*')
end
end
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