package ordercalc import ( "testing" "time" ) func Test_NewNumber(t *testing.T) { t.Log(time.Now().UnixNano()) var set map[string]int set = make(map[string]int) var i, reply int = 0, 0 var num string for i < 100000 { i++ num = VerifyNumber() if _, ok := set[num]; ok { reply++ } else { set[num] = i } } t.Log("reply:", reply) // t.Log(set) }