refactor(cli): ensure namespace iter are alpha-ordered

cli/cli.go

@@ -1,6 +1,7 @@
 package cli
 
 import (
+	"slices"
 	"strings"
 	logger "v/logger"
 	state "v/state"
@@ -31,6 +32,18 @@ func (c *CLI) AddNamespace(namespace Namespace) *CLI {
 	return c
 }
 
+func (c *CLI) ListNamespaces() []string {
+	labels := []string{}
+
+	for key := range c.Namespaces {
+		labels = append(labels, key)
+	}
+
+	slices.Sort(labels)
+
+	return labels
+}
+
 // Executes one of the registered commands if any match the provided
 // user arguments.
 func (c CLI) Run(args []string, currentState state.State) error {
@@ -64,7 +77,8 @@ func (c CLI) Run(args []string, currentState state.State) error {
 // and descriptions based on registered commands (see: AddCommand).
 func (c CLI) Help() {
 	logger.InfoLogger.Printf("v: A simple version manager. (v%s)\n---", c.Metadata["Version"])
-	for _, namespace := range c.Namespaces {
+	for _, namespaceLabel := range c.ListNamespaces() {
+		namespace := c.Namespaces[namespaceLabel]
 		for _, commandLabel := range namespace.ListCommands() {
 			command := namespace.Commands[commandLabel]
 			logger.InfoLogger.Printf("\033[1m%-30s\033[0m%s\n", command.Usage, command.Description)

cli/cli_test.go

@@ -0,0 +1,37 @@
+package cli
+
+import (
+	"slices"
+	"testing"
+)
+
+func TestAddNamespace(t *testing.T) {
+	cli := CLI{}
+
+	namespace := Namespace{Label: "test"}
+
+	cli.AddNamespace(namespace)
+
+	if len(cli.Namespaces) != 1 {
+		t.Errorf("Expected one namespace added.")
+	}
+
+	if cli.Namespaces["test"].Label != namespace.Label {
+		t.Errorf("Unexpected label value: %s", cli.Namespaces["test"].Label)
+	}
+}
+
+func TestListNamespacesReturnsAlphaOrderedLabels(t *testing.T) {
+	cli := CLI{}
+
+	n1 := Namespace{Label: "a"}
+	n2 := Namespace{Label: "b"}
+	cli.AddNamespace(n2).AddNamespace(n1)
+
+	labels := cli.ListNamespaces()
+
+	if !slices.Equal(labels, []string{"a", "b"}) {
+		t.Errorf("Expected labels to be alpha ordered, got %v", labels)
+	}
+
+}