fix a random issue

src/gen/intVal.go

@@ -44,7 +44,7 @@ func GenerateIntItemsByStep(start int64, end int64, step int, repeat int) []inte
 func GenerateIntItemsRand(start int64, end int64, step int, repeat int) []interface{} {
 	arr := make([]interface{}, 0)
 
-	countInRound := (end - start) / int64(step)
+	countInRound := (end - start) / int64(step) + 1
 	total := 0
 	for i := int64(0); i < countInRound; {
 		rand := commonUtils.RandNum64(countInRound)

src/gen/rand.go

@@ -40,7 +40,7 @@ func GetRandFromRange(dataType, start, end, step, repeatStr, precisionStr string
 			stepInt = stepInt * -1
 		}
 
-		countInRound := (endInt - startInt) / stepInt
+		countInRound := (endInt - startInt) / stepInt + 1
 
 		for i := 0; i < count; i++ {
 			rand := commonUtils.RandNum64(countInRound)
@@ -66,7 +66,7 @@ func GetRandFromRange(dataType, start, end, step, repeatStr, precisionStr string
 			stepInt = stepInt * -1
 		}
 
-		countInRound := (int64(endChar) - int64(startChar)) / stepInt
+		countInRound := (int64(endChar) - int64(startChar)) / stepInt + 1
 
 		for i := 0; i < count; i++ {
 			rand := commonUtils.RandNum64(countInRound)
@@ -92,7 +92,7 @@ func GetRandFromRange(dataType, start, end, step, repeatStr, precisionStr string
 			stepFloat = stepFloat * -1
 		}
 
-		countInRound := (endFloat - startFloat) / stepFloat
+		countInRound := (endFloat - startFloat) / stepFloat + 1
 
 		for i := 0; i < count; i++ {
 			rand := commonUtils.RandNum64(int64(countInRound))