v/vlib/encoding/utf8/utf8_util_test.v

import encoding.utf8

fn test_utf8_util() {
	src:="ăĂ ôÔ testo 怔"
	upper:=utf8.to_upper(src)
	lower:=utf8.to_lower(src)
	assert upper=="ĂĂ ÔÔ TESTO Æ€”"
	assert lower=="ăă ôô testo 怔"
}