1 # frozen_string_literal: true
5 class UTF8Test < ActiveSupport::TestCase
7 assert UTF8.valid?("test")
8 assert UTF8.valid?("vergrößern")
9 assert UTF8.valid?("ルシステムにも対応します")
10 assert UTF8.valid?("輕觸搖晃的遊戲")
12 assert_not UTF8.valid?("\xC0") # always invalid utf8
13 assert_not UTF8.valid?("\xC2\x4a") # 2-byte multibyte identifier, followed by plain ASCII
14 assert_not UTF8.valid?("\xC2\xC2") # 2-byte multibyte identifier, followed by another one
15 assert_not UTF8.valid?("\x4a\x82") # plain ASCII, followed by multibyte continuation
16 assert_not UTF8.valid?("\x82\x82") # multibyte continuations without multibyte identifier
17 assert_not UTF8.valid?("\xe1\x82\x4a") # three-byte identifier, continuation and (incorrectly) plain ASCII