t.Errorf("ToLower(U+%04X) disagrees with To(Lower)", i)
		}
		if To(TitleCase, i) != ToTitle(i) {
			t.Errorf("ToTitle(U+%04X) disagrees with To(Title)", i)
		}
	}
}

func TestTurkishCase(t *testing.T) {
	lower := []rune("abcçdefgğhıijklmnoöprsştuüvyz")
	upper := []rune("ABCÇDEFGĞHIİJKLMNOÖPRSŞTUÜVYZ")
	for i, l := range lower {
		u := upper[i]
		if TurkishCase.ToLower(l) != l {