package rand import ( "encoding/hex" "fmt" "testing" ) func TestRand(t *testing.T) { fmt.Println(String(12)) s := []byte("e1e2d4c72944d601ba3fe1d4413a1abb5124212c80e45b0b3708b9f81017f35b") encoded := hex.EncodeToString(s) b, err := hex.DecodeString(encoded) if err != nil { t.Fatal(err) } fmt.Println(encoded) fmt.Println(string(b)) fmt.Println(Hex(32)) fmt.Println(hex.EncodeToString(Bytes(32))) }