func (v TS) String() string   { return Sprintf("S: %q", string(v)) }

func check(t *testing.T, got, want string) {
	if got != want {
		t.Error(got, "!=", want)
	}
}

func TestStringer(t *testing.T) {
	s := Sprintf("%v %v %v %v %v", TI(0), TI8(1), TI16(2), TI32(3), TI64(4))
	check(t, s, "I: 0 I8: 1 I16: 2 I32: 3 I64: 4")
	s = Sprintf("%v %v %v %v %v %v", TU(5), TU8(6), TU16(7), TU32(8), TU64(9), TUI(10))