fix(loadbalancer): show correct number of listeners & targets in list cmd

Author: rubenhoenle

internal/cmd/load-balancer/list/list.go

@@ -154,13 +154,21 @@ func outputResult(p *print.Printer, outputFormat string, loadBalancers []loadbal
 		table.SetHeader("NAME", "STATE", "IP ADDRESS", "LISTENERS", "TARGET POOLS")
 		for i := range loadBalancers {
 			l := loadBalancers[i]
-			externalAdress := utils.PtrStringDefault(l.ExternalAddress, "-")
+			var numListeners, numTargetPools int
+			if l.Listeners != nil {
+				numListeners = len(*l.Listeners)
+			}
+			if l.TargetPools != nil {
+				numTargetPools = len(*l.TargetPools)
+			}
+
+			externalAddress := utils.PtrStringDefault(l.ExternalAddress, "-")
 			table.AddRow(
 				utils.PtrString(l.Name),
 				utils.PtrString(l.Status),
-				externalAdress,
-				len(utils.PtrString(l.Listeners)),
-				len(utils.PtrString(l.TargetPools)),
+				externalAddress,
+				numListeners,
+				numTargetPools,
 			)
 		}
 		err := table.Display(p)

internal/cmd/load-balancer/list/list_test.go

@@ -202,6 +202,13 @@ func TestOutputResult(t *testing.T) {
 			args:    args{},
 			wantErr: false,
 		},
+		{
+			name: "empty loadbalancers slice",
+			args: args{
+				loadBalancers: []loadbalancer.LoadBalancer{},
+			},
+			wantErr: false,
+		},
 		{
 			name: "empty loadbalancer in loadbalancers slice",
 			args: args{