github.com/egonelbre/exp@v0.0.0-20240430123955-ed1d3aa93911/bit/zigzag_test.go (about)

     1  package bit
     2  
     3  import (
     4  	"math/rand"
     5  	"testing"
     6  )
     7  
     8  func TestZigRandom(t *testing.T) {
     9  	for i := 0; i < 15315; i += 1 {
    10  		x := rand.Int63()
    11  		if rand.Intn(2) == 1 {
    12  			x = -x
    13  		}
    14  		rx := ZEncode(x)
    15  		rrx := ZDecode(rx)
    16  		if rrx != x {
    17  			t.Fatalf("failed %v: %v / %v", x, rx, rrx)
    18  		}
    19  	}
    20  }