add test case for profile list

Signed-off-by: jason yang <jasonyangshadow@gmail.com>

internal/app/wwctl/profile/list/root.go

@@ -2,23 +2,22 @@ package list
 
 import "github.com/spf13/cobra"
 
-var (
-	baseCmd = &cobra.Command{
-		DisableFlagsInUseLine: true,
-		Use:     "list [OPTIONS] [PROFILE ...]",
-		Short:   "List profiles and configurations",
-		Long:    "This command will display configurations for PROFILE.",
-		RunE:    CobraRunE,
-		Aliases: []string{"ls"},
-	}
-	ShowAll bool
-)
-
-func init() {
-	baseCmd.PersistentFlags().BoolVarP(&ShowAll, "all", "a", false, "Show all node configurations")
+type variables struct {
+	showAll bool
 }
 
 // GetRootCommand returns the root cobra.Command for the application.
 func GetCommand() *cobra.Command {
+	vars := variables{}
+	baseCmd := &cobra.Command{
+		DisableFlagsInUseLine: true,
+		Use:                   "list [OPTIONS] [PROFILE ...]",
+		Short:                 "List profiles and configurations",
+		Long:                  "This command will display configurations for PROFILE.",
+		RunE:                  CobraRunE(&vars),
+		Aliases:               []string{"ls"},
+	}
+	baseCmd.PersistentFlags().BoolVarP(&vars.showAll, "all", "a", false, "Show all node configurations")
+
 	return baseCmd
 }