require "abstract_unit" require "active_support/inflector/transliterate" class TransliterateTest < ActiveSupport::TestCase def test_transliterate_should_not_change_ascii_chars (0..127).each do |byte| char = [byte].pack("U") assert_equal char, ActiveSupport::Inflector.transliterate(char) end end def test_transliterate_should_approximate_ascii # create string with range of Unicode's western characters with # diacritics, excluding the division and multiplication signs which for # some reason or other are floating in the middle of all the letters. string = (0xC0..0x17E).to_a.reject { |c| [0xD7, 0xF7].include?(c) }.pack("U*") string.each_char do |char| assert_match %r{^[a-zA-Z']*$}, ActiveSupport::Inflector.transliterate(char) end end def test_transliterate_should_work_with_custom_i18n_rules_and_uncomposed_utf8 char = [117, 776].pack("U*") # "ü" as ASCII "u" plus COMBINING DIAERESIS I18n.backend.store_translations(:de, i18n: { transliterate: { rule: { "ü" => "ue" } } }) default_locale, I18n.locale = I18n.locale, :de assert_equal "ue", ActiveSupport::Inflector.transliterate(char) ensure I18n.locale = default_locale end def test_transliterate_should_allow_a_custom_replacement_char assert_equal "a*b", ActiveSupport::Inflector.transliterate("a索b", "*") end def test_transliterate_handles_empty_string assert_equal "", ActiveSupport::Inflector.transliterate("") end def test_transliterate_handles_nil exception = assert_raises ArgumentError do ActiveSupport::Inflector.transliterate(nil) end assert_equal "Can only transliterate strings. Received NilClass", exception.message end def test_transliterate_handles_unknown_object exception = assert_raises ArgumentError do ActiveSupport::Inflector.transliterate(Object.new) end assert_equal "Can only transliterate strings. Received Object", exception.message end end