b.Run(fmt.Sprint(size), func(b *testing.B) {
			b.RunParallel(func(pb *testing.PB) {
				for pb.Next() {
					testZip64(b, size)
				}
			})
		})
	}
}

func TestSuffixSaver(t *testing.T) {
	const keep = 10
	ss := &suffixSaver{keep: keep}
	ss.Write([]byte("abc"))
	if got := string(ss.Suffix()); got != "abc" {
		t.Errorf("got = %q; want abc", got)
	}