assert('bare \u notation test') do
assert_equal("\x00", "\u0000")
assert_equal("\x7F", "\u007F")
assert_equal("\xC2\x80", "\u0080")
assert_equal("\xDF\xBF", "\u07FF")
assert_equal("\xE0\xA0\x80", "\u0800")
assert_equal("\xEF\xBF\xBF", "\uFFFF")
end
assert('braced \u notation test') do
assert_equal("\x00", "\u{0000}")
assert_equal("\x7F", "\u{007F}")
assert_equal("\xC2\x80", "\u{0080}")
assert_equal("\xDF\xBF", "\u{07FF}")
assert_equal("\xE0\xA0\x80", "\u{0800}")
assert_equal("\xEF\xBF\xBF", "\u{FFFF}")
assert_equal("\xF0\x90\x80\x80", "\u{10000}")
assert_equal("\xF4\x8F\xBF\xBF", "\u{10FFFF}")
end
assert('braced multiple \u notation test') do
assert_equal("ABC", "\u{41 42 43}")
end