diff --git a/pkg/uuid/internal_generator_test.go b/pkg/uuid/internal_generator_test.go
index 26e9229d..c5e156d6 100644
--- a/pkg/uuid/internal_generator_test.go
+++ b/pkg/uuid/internal_generator_test.go
@@ -54,7 +54,7 @@ func TestGenerateUuid_MultiType(t *testing.T) {
 	assert.Equal(t, uint32(expectedSeqId), actualSeqId)
 }
 
-func TestGenerateUuid_1000Times(t *testing.T) {
+func TestGenerateUuid_2000TimesIn2Seconds(t *testing.T) {
 	generator, _ := NewInternalUuidGenerator(&settings.Config{UuidServerId: 2})
 	expectedUnixTime := time.Now().Unix()
 
@@ -79,17 +79,18 @@ func TestGenerateUuid_1000Times(t *testing.T) {
 }
 
 func TestGenerateUuid_1000000TimesConcurrent(t *testing.T) {
+	concurrentCount := 50
 	generator, _ := NewInternalUuidGenerator(&settings.Config{UuidServerId: 3})
 	var mutex sync.Mutex
 	var generatedIds sync.Map
 	var waitGroup sync.WaitGroup
 
-	for i := 0; i < 50; i++ {
+	for routineIndex := 0; routineIndex < concurrentCount; routineIndex++ {
 		go func() {
 			waitGroup.Add(1)
 
-			for j := 0; j < 40000; j++ {
-				if j%10000 == 0 { // echo server can only generate 500,000 (50 * 10000) uuids in one second
+			for cycle := 0; cycle < 40000; cycle++ {
+				if cycle%10000 == 0 { // each server can only generate 500,000 (50 * 10000) uuids in one second
 					time.Sleep(1000 * time.Millisecond)
 				}