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713 lines
26 KiB
Ruby
713 lines
26 KiB
Ruby
require 'abstract_unit'
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require 'multibyte_test_helpers'
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require 'active_support/core_ext/string/multibyte'
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class MultibyteCharsTest < ActiveSupport::TestCase
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include MultibyteTestHelpers
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def setup
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@proxy_class = ActiveSupport::Multibyte::Chars
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@chars = @proxy_class.new UNICODE_STRING.dup
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end
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def test_wraps_the_original_string
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assert_equal UNICODE_STRING, @chars.to_s
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assert_equal UNICODE_STRING, @chars.wrapped_string
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end
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def test_should_allow_method_calls_to_string
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@chars.wrapped_string.singleton_class.class_eval { def __method_for_multibyte_testing; 'result'; end }
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assert_nothing_raised do
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@chars.__method_for_multibyte_testing
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end
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assert_raise NoMethodError do
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@chars.__unknown_method
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end
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end
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def test_forwarded_method_calls_should_return_new_chars_instance
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@chars.wrapped_string.singleton_class.class_eval { def __method_for_multibyte_testing; 'result'; end }
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assert_kind_of @proxy_class, @chars.__method_for_multibyte_testing
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assert_not_equal @chars.object_id, @chars.__method_for_multibyte_testing.object_id
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end
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def test_forwarded_bang_method_calls_should_return_the_original_chars_instance_when_result_is_not_nil
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@chars.wrapped_string.singleton_class.class_eval { def __method_for_multibyte_testing!; 'result'; end }
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assert_kind_of @proxy_class, @chars.__method_for_multibyte_testing!
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assert_equal @chars.object_id, @chars.__method_for_multibyte_testing!.object_id
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end
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def test_forwarded_bang_method_calls_should_return_nil_when_result_is_nil
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@chars.wrapped_string.singleton_class.class_eval { def __method_for_multibyte_testing_that_returns_nil!; end }
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assert_nil @chars.__method_for_multibyte_testing_that_returns_nil!
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end
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def test_methods_are_forwarded_to_wrapped_string_for_byte_strings
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assert_equal BYTE_STRING.length, BYTE_STRING.mb_chars.length
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end
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def test_forwarded_method_with_non_string_result_should_be_returned_vertabim
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str = ''
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str.singleton_class.class_eval { def __method_for_multibyte_testing_with_integer_result; 1; end }
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@chars.wrapped_string.singleton_class.class_eval { def __method_for_multibyte_testing_with_integer_result; 1; end }
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assert_equal str.__method_for_multibyte_testing_with_integer_result, @chars.__method_for_multibyte_testing_with_integer_result
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end
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def test_should_concatenate
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mb_a = 'a'.mb_chars
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mb_b = 'b'.mb_chars
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assert_equal 'ab', mb_a + 'b'
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assert_equal 'ab', 'a' + mb_b
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assert_equal 'ab', mb_a + mb_b
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assert_equal 'ab', mb_a << 'b'
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assert_equal 'ab', 'a' << mb_b
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assert_equal 'abb', mb_a << mb_b
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end
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def test_consumes_utf8_strings
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assert @proxy_class.consumes?(UNICODE_STRING)
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assert @proxy_class.consumes?(ASCII_STRING)
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assert !@proxy_class.consumes?(BYTE_STRING)
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end
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def test_concatenation_should_return_a_proxy_class_instance
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assert_equal ActiveSupport::Multibyte.proxy_class, ('a'.mb_chars + 'b').class
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assert_equal ActiveSupport::Multibyte.proxy_class, ('a'.mb_chars << 'b').class
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end
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def test_ascii_strings_are_treated_at_utf8_strings
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assert_equal ActiveSupport::Multibyte.proxy_class, ASCII_STRING.mb_chars.class
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end
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def test_concatenate_should_return_proxy_instance
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assert(('a'.mb_chars + 'b').kind_of?(@proxy_class))
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assert(('a'.mb_chars + 'b'.mb_chars).kind_of?(@proxy_class))
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assert(('a'.mb_chars << 'b').kind_of?(@proxy_class))
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assert(('a'.mb_chars << 'b'.mb_chars).kind_of?(@proxy_class))
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end
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def test_should_return_string_as_json
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assert_equal UNICODE_STRING, @chars.as_json
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end
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end
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class MultibyteCharsUTF8BehaviourTest < ActiveSupport::TestCase
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include MultibyteTestHelpers
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def setup
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@chars = UNICODE_STRING.dup.mb_chars
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# Ruby 1.9 only supports basic whitespace
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@whitespace = "\n\t "
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end
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def test_split_should_return_an_array_of_chars_instances
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@chars.split(//).each do |character|
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assert_kind_of ActiveSupport::Multibyte.proxy_class, character
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end
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end
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%w{capitalize downcase lstrip reverse rstrip swapcase upcase}.each do |method|
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class_eval(<<-EOTESTS, __FILE__, __LINE__ + 1)
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def test_#{method}_bang_should_return_self_when_modifying_wrapped_string
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chars = ' él piDió Un bUen café '
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assert_equal chars.object_id, chars.send("#{method}!").object_id
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end
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def test_#{method}_bang_should_change_wrapped_string
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original = ' él piDió Un bUen café '
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proxy = chars(original.dup)
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proxy.send("#{method}!")
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assert_not_equal original, proxy.to_s
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end
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EOTESTS
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end
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def test_tidy_bytes_bang_should_return_self
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assert_equal @chars.object_id, @chars.tidy_bytes!.object_id
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end
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def test_tidy_bytes_bang_should_change_wrapped_string
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original = " Un bUen café \x92"
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proxy = chars(original.dup)
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proxy.tidy_bytes!
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assert_not_equal original, proxy.to_s
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end
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def test_unicode_string_should_have_utf8_encoding
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assert_equal Encoding::UTF_8, UNICODE_STRING.encoding
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end
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def test_identity
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assert_equal @chars, @chars
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assert @chars.eql?(@chars)
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assert !@chars.eql?(UNICODE_STRING)
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end
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def test_string_methods_are_chainable
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assert chars('').insert(0, '').kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').rjust(1).kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').ljust(1).kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').center(1).kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').rstrip.kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').lstrip.kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').strip.kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').reverse.kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars(' ').slice(0).kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').limit(0).kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').upcase.kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').downcase.kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').capitalize.kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').normalize.kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').decompose.kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').compose.kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').tidy_bytes.kind_of?(ActiveSupport::Multibyte.proxy_class)
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assert chars('').swapcase.kind_of?(ActiveSupport::Multibyte.proxy_class)
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end
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def test_should_be_equal_to_the_wrapped_string
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assert_equal UNICODE_STRING, @chars
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assert_equal @chars, UNICODE_STRING
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end
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def test_should_not_be_equal_to_an_other_string
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assert_not_equal @chars, 'other'
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assert_not_equal 'other', @chars
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end
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def test_sortability
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words = %w(builder armor zebra).sort_by(&:mb_chars)
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assert_equal %w(armor builder zebra), words
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end
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def test_should_return_character_offset_for_regexp_matches
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assert_nil(@chars =~ /wrong/u)
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assert_equal 0, (@chars =~ /こ/u)
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assert_equal 0, (@chars =~ /こに/u)
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assert_equal 1, (@chars =~ /に/u)
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assert_equal 2, (@chars =~ /ち/u)
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assert_equal 3, (@chars =~ /わ/u)
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end
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def test_should_use_character_offsets_for_insert_offsets
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assert_equal '', ''.mb_chars.insert(0, '')
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assert_equal 'こわにちわ', @chars.insert(1, 'わ')
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assert_equal 'こわわわにちわ', @chars.insert(2, 'わわ')
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assert_equal 'わこわわわにちわ', @chars.insert(0, 'わ')
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assert_equal 'わこわわわにちわ', @chars.wrapped_string
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end
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def test_insert_should_be_destructive
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@chars.insert(1, 'わ')
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assert_equal 'こわにちわ', @chars
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end
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def test_insert_throws_index_error
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assert_raise(IndexError) { @chars.insert(-12, 'わ')}
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assert_raise(IndexError) { @chars.insert(12, 'わ') }
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end
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def test_should_know_if_one_includes_the_other
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assert @chars.include?('')
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assert @chars.include?('ち')
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assert @chars.include?('わ')
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assert !@chars.include?('こちわ')
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assert !@chars.include?('a')
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end
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def test_include_raises_when_nil_is_passed
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assert_raises TypeError, NoMethodError, "Expected chars.include?(nil) to raise TypeError or NoMethodError" do
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@chars.include?(nil)
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end
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end
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def test_index_should_return_character_offset
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assert_nil @chars.index('u')
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assert_equal 0, @chars.index('こに')
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assert_equal 2, @chars.index('ち')
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assert_equal 2, @chars.index('ち', -2)
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assert_equal nil, @chars.index('ち', -1)
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assert_equal 3, @chars.index('わ')
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assert_equal 5, 'ééxééx'.mb_chars.index('x', 4)
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end
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def test_rindex_should_return_character_offset
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assert_nil @chars.rindex('u')
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assert_equal 1, @chars.rindex('に')
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assert_equal 2, @chars.rindex('ち', -2)
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assert_nil @chars.rindex('ち', -3)
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assert_equal 6, 'Café périferôl'.mb_chars.rindex('é')
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assert_equal 13, 'Café périferôl'.mb_chars.rindex(/\w/u)
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end
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def test_indexed_insert_should_take_character_offsets
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@chars[2] = 'a'
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assert_equal 'こにaわ', @chars
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@chars[2] = 'ηη'
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assert_equal 'こにηηわ', @chars
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@chars[3, 2] = 'λλλ'
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assert_equal 'こにηλλλ', @chars
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@chars[1, 0] = "λ"
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assert_equal 'こλにηλλλ', @chars
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@chars[4..6] = "ηη"
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assert_equal 'こλにηηη', @chars
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@chars[/ηη/] = "λλλ"
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assert_equal 'こλにλλλη', @chars
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@chars[/(λλ)(.)/, 2] = "α"
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assert_equal 'こλにλλαη', @chars
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@chars["α"] = "¢"
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assert_equal 'こλにλλ¢η', @chars
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@chars["λλ"] = "ααα"
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assert_equal 'こλにααα¢η', @chars
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end
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def test_indexed_insert_should_raise_on_index_overflow
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before = @chars.to_s
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assert_raise(IndexError) { @chars[10] = 'a' }
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assert_raise(IndexError) { @chars[10, 4] = 'a' }
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assert_raise(IndexError) { @chars[/ii/] = 'a' }
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assert_raise(IndexError) { @chars[/()/, 10] = 'a' }
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assert_equal before, @chars
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end
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def test_indexed_insert_should_raise_on_range_overflow
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before = @chars.to_s
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assert_raise(RangeError) { @chars[10..12] = 'a' }
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assert_equal before, @chars
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end
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def test_rjust_should_raise_argument_errors_on_bad_arguments
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assert_raise(ArgumentError) { @chars.rjust(10, '') }
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assert_raise(ArgumentError) { @chars.rjust }
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end
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def test_rjust_should_count_characters_instead_of_bytes
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assert_equal UNICODE_STRING, @chars.rjust(-3)
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assert_equal UNICODE_STRING, @chars.rjust(0)
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assert_equal UNICODE_STRING, @chars.rjust(4)
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assert_equal " #{UNICODE_STRING}", @chars.rjust(5)
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assert_equal " #{UNICODE_STRING}", @chars.rjust(7)
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assert_equal "---#{UNICODE_STRING}", @chars.rjust(7, '-')
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assert_equal "ααα#{UNICODE_STRING}", @chars.rjust(7, 'α')
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assert_equal "aba#{UNICODE_STRING}", @chars.rjust(7, 'ab')
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assert_equal "αηα#{UNICODE_STRING}", @chars.rjust(7, 'αη')
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assert_equal "αηαη#{UNICODE_STRING}", @chars.rjust(8, 'αη')
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end
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def test_ljust_should_raise_argument_errors_on_bad_arguments
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assert_raise(ArgumentError) { @chars.ljust(10, '') }
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assert_raise(ArgumentError) { @chars.ljust }
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end
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def test_ljust_should_count_characters_instead_of_bytes
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assert_equal UNICODE_STRING, @chars.ljust(-3)
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assert_equal UNICODE_STRING, @chars.ljust(0)
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assert_equal UNICODE_STRING, @chars.ljust(4)
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assert_equal "#{UNICODE_STRING} ", @chars.ljust(5)
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assert_equal "#{UNICODE_STRING} ", @chars.ljust(7)
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assert_equal "#{UNICODE_STRING}---", @chars.ljust(7, '-')
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assert_equal "#{UNICODE_STRING}ααα", @chars.ljust(7, 'α')
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assert_equal "#{UNICODE_STRING}aba", @chars.ljust(7, 'ab')
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assert_equal "#{UNICODE_STRING}αηα", @chars.ljust(7, 'αη')
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assert_equal "#{UNICODE_STRING}αηαη", @chars.ljust(8, 'αη')
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end
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def test_center_should_raise_argument_errors_on_bad_arguments
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assert_raise(ArgumentError) { @chars.center(10, '') }
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assert_raise(ArgumentError) { @chars.center }
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end
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def test_center_should_count_characters_instead_of_bytes
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assert_equal UNICODE_STRING, @chars.center(-3)
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assert_equal UNICODE_STRING, @chars.center(0)
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assert_equal UNICODE_STRING, @chars.center(4)
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assert_equal "#{UNICODE_STRING} ", @chars.center(5)
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assert_equal " #{UNICODE_STRING} ", @chars.center(6)
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assert_equal " #{UNICODE_STRING} ", @chars.center(7)
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assert_equal "--#{UNICODE_STRING}--", @chars.center(8, '-')
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assert_equal "--#{UNICODE_STRING}---", @chars.center(9, '-')
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assert_equal "αα#{UNICODE_STRING}αα", @chars.center(8, 'α')
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assert_equal "αα#{UNICODE_STRING}ααα", @chars.center(9, 'α')
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assert_equal "a#{UNICODE_STRING}ab", @chars.center(7, 'ab')
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assert_equal "ab#{UNICODE_STRING}ab", @chars.center(8, 'ab')
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assert_equal "abab#{UNICODE_STRING}abab", @chars.center(12, 'ab')
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assert_equal "α#{UNICODE_STRING}αη", @chars.center(7, 'αη')
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assert_equal "αη#{UNICODE_STRING}αη", @chars.center(8, 'αη')
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end
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def test_lstrip_strips_whitespace_from_the_left_of_the_string
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assert_equal UNICODE_STRING, UNICODE_STRING.mb_chars.lstrip
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assert_equal UNICODE_STRING, (@whitespace + UNICODE_STRING).mb_chars.lstrip
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assert_equal UNICODE_STRING + @whitespace, (@whitespace + UNICODE_STRING + @whitespace).mb_chars.lstrip
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end
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def test_rstrip_strips_whitespace_from_the_right_of_the_string
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assert_equal UNICODE_STRING, UNICODE_STRING.mb_chars.rstrip
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assert_equal UNICODE_STRING, (UNICODE_STRING + @whitespace).mb_chars.rstrip
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assert_equal @whitespace + UNICODE_STRING, (@whitespace + UNICODE_STRING + @whitespace).mb_chars.rstrip
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end
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def test_strip_strips_whitespace
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assert_equal UNICODE_STRING, UNICODE_STRING.mb_chars.strip
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assert_equal UNICODE_STRING, (@whitespace + UNICODE_STRING).mb_chars.strip
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assert_equal UNICODE_STRING, (UNICODE_STRING + @whitespace).mb_chars.strip
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assert_equal UNICODE_STRING, (@whitespace + UNICODE_STRING + @whitespace).mb_chars.strip
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end
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def test_stripping_whitespace_leaves_whitespace_within_the_string_intact
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string_with_whitespace = UNICODE_STRING + @whitespace + UNICODE_STRING
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assert_equal string_with_whitespace, string_with_whitespace.mb_chars.strip
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assert_equal string_with_whitespace, string_with_whitespace.mb_chars.lstrip
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assert_equal string_with_whitespace, string_with_whitespace.mb_chars.rstrip
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end
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def test_size_returns_characters_instead_of_bytes
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assert_equal 0, ''.mb_chars.size
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assert_equal 4, @chars.size
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assert_equal 4, @chars.length
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assert_equal 5, ASCII_STRING.mb_chars.size
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end
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def test_reverse_reverses_characters
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assert_equal '', ''.mb_chars.reverse
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assert_equal 'わちにこ', @chars.reverse
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end
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def test_reverse_should_work_with_normalized_strings
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str = 'bös'
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reversed_str = 'söb'
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assert_equal chars(reversed_str).normalize(:kc), chars(str).normalize(:kc).reverse
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assert_equal chars(reversed_str).normalize(:c), chars(str).normalize(:c).reverse
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assert_equal chars(reversed_str).normalize(:d), chars(str).normalize(:d).reverse
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assert_equal chars(reversed_str).normalize(:kd), chars(str).normalize(:kd).reverse
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assert_equal chars(reversed_str).decompose, chars(str).decompose.reverse
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assert_equal chars(reversed_str).compose, chars(str).compose.reverse
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end
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def test_slice_should_take_character_offsets
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assert_equal nil, ''.mb_chars.slice(0)
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assert_equal 'こ', @chars.slice(0)
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assert_equal 'わ', @chars.slice(3)
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assert_equal nil, ''.mb_chars.slice(-1..1)
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assert_equal nil, ''.mb_chars.slice(-1, 1)
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assert_equal '', ''.mb_chars.slice(0..10)
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assert_equal 'にちわ', @chars.slice(1..3)
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assert_equal 'にちわ', @chars.slice(1, 3)
|
||
assert_equal 'こ', @chars.slice(0, 1)
|
||
assert_equal 'ちわ', @chars.slice(2..10)
|
||
assert_equal '', @chars.slice(4..10)
|
||
assert_equal 'に', @chars.slice(/に/u)
|
||
assert_equal 'にち', @chars.slice(/に./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_bang_returns_sliced_out_substring
|
||
assert_equal 'にち', @chars.slice!(1..2)
|
||
end
|
||
|
||
def test_slice_bang_removes_the_slice_from_the_receiver
|
||
chars = 'úüù'.mb_chars
|
||
chars.slice!(0,2)
|
||
assert_equal 'ù', chars
|
||
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_swapcase_should_swap_ascii_characters
|
||
assert_equal '', ''.mb_chars.swapcase
|
||
assert_equal 'AbC', 'aBc'.mb_chars.swapcase
|
||
end
|
||
|
||
def test_capitalize_should_work_on_ascii_characters
|
||
assert_equal '', ''.mb_chars.capitalize
|
||
assert_equal 'Abc', 'abc'.mb_chars.capitalize
|
||
end
|
||
|
||
def test_titleize_should_work_on_ascii_characters
|
||
assert_equal '', ''.mb_chars.titleize
|
||
assert_equal 'Abc Abc', 'abc abc'.mb_chars.titleize
|
||
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_method_works_for_proxyed_methods
|
||
assert_equal 'll', 'hello'.mb_chars.method(:slice).call(2..3) # Defined on Chars
|
||
chars = 'hello'.mb_chars
|
||
assert_equal 'Hello', chars.method(:capitalize!).call # Defined on Chars
|
||
assert_equal 'Hello', chars
|
||
assert_equal 'jello', 'hello'.mb_chars.method(:gsub).call(/h/, 'j') # Defined on String
|
||
assert_raise(NameError){ ''.mb_chars.method(: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 < ActiveSupport::TestCase
|
||
include MultibyteTestHelpers
|
||
|
||
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_swapcase_should_be_unicode_aware
|
||
assert_equal "аaéÜ\0f", chars("АAÉü\0F").swapcase
|
||
assert_equal 'こにちわ', chars('こにちわ').swapcase
|
||
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_titleize_should_be_unicode_aware
|
||
assert_equal "Él Que Se Enteró", chars("ÉL QUE SE ENTERÓ").titleize
|
||
assert_equal "Абвг Абвг", chars("аБвг аБвг").titleize
|
||
end
|
||
|
||
def test_titleize_should_not_affect_characters_that_do_not_case_fold
|
||
assert_equal "日本語", chars("日本語").titleize
|
||
end
|
||
|
||
def test_limit_should_not_break_on_blank_strings
|
||
example = chars('')
|
||
assert_equal example, example.limit(0)
|
||
assert_equal example, example.limit(1)
|
||
end
|
||
|
||
def test_limit_should_work_on_a_multibyte_string
|
||
example = chars(UNICODE_STRING)
|
||
bytesize = UNICODE_STRING.bytesize
|
||
|
||
assert_equal UNICODE_STRING, example.limit(bytesize)
|
||
assert_equal '', example.limit(0)
|
||
assert_equal '', example.limit(1)
|
||
assert_equal 'こ', example.limit(3)
|
||
assert_equal 'こに', example.limit(6)
|
||
assert_equal 'こに', example.limit(8)
|
||
assert_equal 'こにち', example.limit(9)
|
||
assert_equal 'こにちわ', example.limit(50)
|
||
end
|
||
|
||
def test_limit_should_work_on_an_ascii_string
|
||
ascii = chars(ASCII_STRING)
|
||
assert_equal ASCII_STRING, ascii.limit(ASCII_STRING.length)
|
||
assert_equal '', ascii.limit(0)
|
||
assert_equal 'o', ascii.limit(1)
|
||
assert_equal 'oh', ascii.limit(2)
|
||
assert_equal 'ohay', ascii.limit(4)
|
||
assert_equal 'ohayo', ascii.limit(50)
|
||
end
|
||
|
||
def test_limit_should_keep_under_the_specified_byte_limit
|
||
example = chars(UNICODE_STRING)
|
||
(1..UNICODE_STRING.length).each do |limit|
|
||
assert example.limit(limit).to_s.length <= limit
|
||
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).grapheme_length
|
||
end
|
||
end
|
||
|
||
def test_tidy_bytes_should_tidy_bytes
|
||
|
||
single_byte_cases = {
|
||
"\x21" => "!", # Valid ASCII byte, low
|
||
"\x41" => "A", # Valid ASCII byte, mid
|
||
"\x7E" => "~", # Valid ASCII byte, high
|
||
"\x80" => "€", # Continuation byte, low (cp125)
|
||
"\x94" => "”", # Continuation byte, mid (cp125)
|
||
"\x9F" => "Ÿ", # Continuation byte, high (cp125)
|
||
"\xC0" => "À", # Overlong encoding, start of 2-byte sequence, but codepoint < 128
|
||
"\xC1" => "Á", # Overlong encoding, start of 2-byte sequence, but codepoint < 128
|
||
"\xC2" => "Â", # Start of 2-byte sequence, low
|
||
"\xC8" => "È", # Start of 2-byte sequence, mid
|
||
"\xDF" => "ß", # Start of 2-byte sequence, high
|
||
"\xE0" => "à", # Start of 3-byte sequence, low
|
||
"\xE8" => "è", # Start of 3-byte sequence, mid
|
||
"\xEF" => "ï", # Start of 3-byte sequence, high
|
||
"\xF0" => "ð", # Start of 4-byte sequence
|
||
"\xF1" => "ñ", # Unused byte
|
||
"\xFF" => "ÿ", # Restricted byte
|
||
"\x00" => "\x00" # null char
|
||
}
|
||
|
||
single_byte_cases.each do |bad, good|
|
||
assert_equal good, chars(bad).tidy_bytes.to_s
|
||
assert_equal "#{good}#{good}", chars("#{bad}#{bad}").tidy_bytes
|
||
assert_equal "#{good}#{good}#{good}", chars("#{bad}#{bad}#{bad}").tidy_bytes
|
||
assert_equal "#{good}a", chars("#{bad}a").tidy_bytes
|
||
assert_equal "#{good}á", chars("#{bad}á").tidy_bytes
|
||
assert_equal "a#{good}a", chars("a#{bad}a").tidy_bytes
|
||
assert_equal "á#{good}á", chars("á#{bad}á").tidy_bytes
|
||
assert_equal "a#{good}", chars("a#{bad}").tidy_bytes
|
||
assert_equal "á#{good}", chars("á#{bad}").tidy_bytes
|
||
end
|
||
|
||
byte_string = "\270\236\010\210\245"
|
||
tidy_string = [0xb8, 0x17e, 0x8, 0x2c6, 0xa5].pack('U*')
|
||
assert_equal_codepoints tidy_string, chars(byte_string).tidy_bytes
|
||
assert_nothing_raised { chars(byte_string).tidy_bytes.to_s.unpack('U*') }
|
||
|
||
# UTF-8 leading byte followed by too few continuation bytes
|
||
assert_equal_codepoints "\xc3\xb0\xc2\xa5\xc2\xa4\x21", chars("\xf0\xa5\xa4\x21").tidy_bytes
|
||
end
|
||
|
||
def test_tidy_bytes_should_forcibly_tidy_bytes_if_specified
|
||
byte_string = "\xF0\xA5\xA4\xA4" # valid as both CP-1252 and UTF-8, but with different interpretations.
|
||
assert_not_equal "𥤤", chars(byte_string).tidy_bytes
|
||
# Forcible conversion to UTF-8
|
||
assert_equal "𥤤", chars(byte_string).tidy_bytes(true)
|
||
end
|
||
|
||
def test_class_is_not_forwarded
|
||
assert_equal BYTE_STRING.dup.mb_chars.class, ActiveSupport::Multibyte::Chars
|
||
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
|
||
|
||
class MultibyteInternalsTest < ActiveSupport::TestCase
|
||
include MultibyteTestHelpers
|
||
|
||
test "Chars translates a character offset to a byte offset" do
|
||
example = chars("Puisque c'était son erreur, il m'a aidé")
|
||
[
|
||
[0, 0],
|
||
[3, 3],
|
||
[12, 11],
|
||
[14, 13],
|
||
[41, 39]
|
||
].each do |byte_offset, character_offset|
|
||
assert_equal character_offset, example.send(:translate_offset, byte_offset),
|
||
"Expected byte offset #{byte_offset} to translate to #{character_offset}"
|
||
end
|
||
end
|
||
end
|