diff --git a/src/gen/charVal.go b/src/gen/charVal.go
index 277b05a42a16e1d1549cdc6b4514b93f993ffd96..628bc9b7c4797540d6e97bdd58b14116901b90e9 100644
--- a/src/gen/charVal.go
+++ b/src/gen/charVal.go
@@ -7,13 +7,13 @@ import (
 
 func GenerateByteItems(start byte, end byte, step int, rand bool, repeat int) []interface{} {
 	if !rand {
-		return GenerateByteItemsByStep(start, end, step, repeat)
+		return generateByteItemsByStep(start, end, step, repeat)
 	} else{
-		return GenerateByteItemsRand(start, end, step, repeat)
+		return generateByteItemsRand(start, end, step, repeat)
 	}
 }
 
-func GenerateByteItemsByStep(start byte, end byte, step int, repeat int) []interface{} {
+func generateByteItemsByStep(start byte, end byte, step int, repeat int) []interface{} {
 	arr := make([]interface{}, 0)
 
 	total := 0
@@ -40,7 +40,7 @@ func GenerateByteItemsByStep(start byte, end byte, step int, repeat int) []inter
 	return arr
 }
 
-func GenerateByteItemsRand(start byte, end byte, step int, repeat int) []interface{} {
+func generateByteItemsRand(start byte, end byte, step int, repeat int) []interface{} {
 	arr := make([]interface{}, 0)
 
 	countInRound := (int(end) - int(start)) / step
diff --git a/src/gen/floatVal.go b/src/gen/floatVal.go
index 91af7597be5899cd2a339bc9d431c4ec461cc940..e8347213a62a3af7e2d8494501e8d0ca05fe3469 100644
--- a/src/gen/floatVal.go
+++ b/src/gen/floatVal.go
@@ -9,13 +9,13 @@ import (
 
 func GenerateFloatItems(start float64, end float64, step interface{}, rand bool, repeat int) []interface{} {
 	if !rand {
-		return GenerateFloatItemsByStep(start, end, step.(float64), repeat)
+		return generateFloatItemsByStep(start, end, step.(float64), repeat)
 	} else{
-		return GenerateFloatItemsRand(start, end, step.(float64), repeat)
+		return generateFloatItemsRand(start, end, step.(float64), repeat)
 	}
 }
 
-func GenerateFloatItemsByStep(start float64, end float64, step float64, repeat int) []interface{} {
+func generateFloatItemsByStep(start float64, end float64, step float64, repeat int) []interface{} {
 	arr := make([]interface{}, 0)
 
 	total := 0
@@ -43,7 +43,7 @@ func GenerateFloatItemsByStep(start float64, end float64, step float64, repeat i
 	return arr
 }
 
-func GenerateFloatItemsRand(start float64, end float64, step float64, repeat int) []interface{} {
+func generateFloatItemsRand(start float64, end float64, step float64, repeat int) []interface{} {
 	arr := make([]interface{}, 0)
 
 	countInRound := (end - start) / step
diff --git a/src/gen/intVal.go b/src/gen/intVal.go
index cc36a7ca97bcd5905ead41924517bc83030b66e9..43aba62bfc5cec643efd9af23e3df59dca7a633b 100644
--- a/src/gen/intVal.go
+++ b/src/gen/intVal.go
@@ -7,13 +7,13 @@ import (
 
 func GenerateIntItems(start int64, end int64, step interface{}, rand bool, repeat int) []interface{} {
 	if !rand {
-		return GenerateIntItemsByStep(start, end, step.(int), repeat)
+		return generateIntItemsByStep(start, end, step.(int), repeat)
 	} else{
-		return GenerateIntItemsRand(start, end, step.(int), repeat)
+		return generateIntItemsRand(start, end, step.(int), repeat)
 	}
 }
 
-func GenerateIntItemsByStep(start int64, end int64, step int, repeat int) []interface{} {
+func generateIntItemsByStep(start int64, end int64, step int, repeat int) []interface{} {
 	arr := make([]interface{}, 0)
 
 	total := 0
@@ -41,7 +41,7 @@ func GenerateIntItemsByStep(start int64, end int64, step int, repeat int) []inte
 	return arr
 }
 
-func GenerateIntItemsRand(start int64, end int64, step int, repeat int) []interface{} {
+func generateIntItemsRand(start int64, end int64, step int, repeat int) []interface{} {
 	arr := make([]interface{}, 0)
 
 	countInRound := (end - start) / int64(step) + 1