diff --git a/apier/v1/config_it_test.go b/apier/v1/config_it_test.go
index 4a1ac0add..6906dc7eb 100644
--- a/apier/v1/config_it_test.go
+++ b/apier/v1/config_it_test.go
@@ -438,8 +438,8 @@ func testConfigStartEngineFromHTTP(t *testing.T) {
 	if err != nil {
 		t.Error(err)
 	}
-	engine := exec.Command(enginePath, "-config_path", "http://127.0.0.1:3080/configs/tutmysql/cgrates.json")
-	if err := engine.Start(); err != nil {
+	eng := exec.Command(enginePath, "-config_path", "http://127.0.0.1:3080/configs/tutmysql/cgrates.json")
+	if err := eng.Start(); err != nil {
 		t.Error(err)
 	}
 	fib := utils.Fib()
diff --git a/apier/v1/preload_it_test.go b/apier/v1/preload_it_test.go
index fbc917e74..0c1576821 100644
--- a/apier/v1/preload_it_test.go
+++ b/apier/v1/preload_it_test.go
@@ -90,8 +90,8 @@ func testPreloadITStartEngine(t *testing.T) {
 	if err != nil {
 		t.Error(err)
 	}
-	engine := exec.Command(enginePath, "-config_path", preloadCfgPath, "-preload", "CustomLoader")
-	if err := engine.Start(); err != nil {
+	eng := exec.Command(enginePath, "-config_path", preloadCfgPath, "-preload", "CustomLoader")
+	if err := eng.Start(); err != nil {
 		t.Error(err)
 	}
 	fib := utils.Fib()
diff --git a/apier/v1/sessions_thresholds_it_test.go b/apier/v1/sessions_thresholds_it_test.go
index b77010052..db74e429a 100755
--- a/apier/v1/sessions_thresholds_it_test.go
+++ b/apier/v1/sessions_thresholds_it_test.go
@@ -405,7 +405,7 @@ func testSessionSv1ItAuthNotFoundThreshold(t *testing.T) {
 		t.Error(err)
 	}
 	if rply.ThresholdIDs != nil {
-		t.Errorf("Expecting: nil, received: %s",
+		t.Errorf("Expecting: nil, received: %+v",
 			rply.ThresholdIDs)
 	}
 	if rply.StatQueueIDs != nil && len(*rply.StatQueueIDs) != 1 && (*rply.StatQueueIDs)[0] != "Stat_2" {
@@ -449,7 +449,7 @@ func testSessionSv1ItInitNotFoundThreshold(t *testing.T) {
 			1024, rply.MaxUsage)
 	}
 	if rply.ThresholdIDs != nil {
-		t.Errorf("Expecting: nil, received: %s",
+		t.Errorf("Expecting: nil, received: %+v",
 			rply.ThresholdIDs)
 	}
 	if rply.StatQueueIDs != nil && len(*rply.StatQueueIDs) != 1 && (*rply.StatQueueIDs)[0] != "Stat_2" {
@@ -537,11 +537,11 @@ func testSessionSv1ItAuthNotFoundThresholdAndStats(t *testing.T) {
 		t.Error(err)
 	}
 	if rply.ThresholdIDs != nil {
-		t.Errorf("Expecting: nil, received: %s",
+		t.Errorf("Expecting: nil, received: %+v",
 			rply.ThresholdIDs)
 	}
 	if rply.StatQueueIDs != nil {
-		t.Errorf("Expecting: nil, received: %s",
+		t.Errorf("Expecting: nil, received: %+v",
 			rply.StatQueueIDs)
 	}
 }
@@ -582,11 +582,11 @@ func testSessionSv1ItInitNotFoundThresholdAndStats(t *testing.T) {
 			1024, rply.MaxUsage)
 	}
 	if rply.ThresholdIDs != nil {
-		t.Errorf("Expecting: nil, received: %s",
+		t.Errorf("Expecting: nil, received: %+v",
 			rply.ThresholdIDs)
 	}
 	if rply.StatQueueIDs != nil {
-		t.Errorf("Expecting: nil, received: %s",
+		t.Errorf("Expecting: nil, received: %+v",
 			rply.StatQueueIDs)
 	}