for i := rune(0); i <= MaxLatin1; i++ {
		got := IsNumber(i)
		want := Is(Number, i)
		if got != want {
			t.Errorf("%U incorrect: got %t; want %t", i, got, want)
		}
	}
}

func TestIsPrintLatin1(t *testing.T) {
	for i := rune(0); i <= MaxLatin1; i++ {
		got := IsPrint(i)
		want := In(i, PrintRanges...)
		if i == ' ' {
			want = true
		}
		if got != want {