github.com/linapex/ethereum-dpos-chinese@v0.0.0-20190316121959-b78b3a4a1ece/rpc/utils_test.go (about)

     1  
     2  //<developer>
     3  //    <name>linapex 曹一峰</name>
     4  //    <email>linapex@163.com</email>
     5  //    <wx>superexc</wx>
     6  //    <qqgroup>128148617</qqgroup>
     7  //    <url>https://jsq.ink</url>
     8  //    <role>pku engineer</role>
     9  //    <date>2019-03-16 12:09:46</date>
    10  //</624342665927856128>
    11  
    12  
    13  package rpc
    14  
    15  import (
    16  	"strings"
    17  	"testing"
    18  )
    19  
    20  func TestNewID(t *testing.T) {
    21  	hexchars := "0123456789ABCDEFabcdef"
    22  	for i := 0; i < 100; i++ {
    23  		id := string(NewID())
    24  		if !strings.HasPrefix(id, "0x") {
    25  			t.Fatalf("invalid ID prefix, want '0x...', got %s", id)
    26  		}
    27  
    28  		id = id[2:]
    29  		if len(id) == 0 || len(id) > 32 {
    30  			t.Fatalf("invalid ID length, want len(id) > 0 && len(id) <= 32), got %d", len(id))
    31  		}
    32  
    33  		for i := 0; i < len(id); i++ {
    34  			if strings.IndexByte(hexchars, id[i]) == -1 {
    35  				t.Fatalf("unexpected byte, want any valid hex char, got %c", id[i])
    36  			}
    37  		}
    38  	}
    39  }
    40