Show aliases beneath empty command groups

route_test.go

@@ -214,6 +214,29 @@ func TestDiscoveryHelpThroughExpandedGroupPath(t *testing.T) {
 	}
 }
 
+func TestEmptyCanonicalGroupHelpListsAliasRoutes(t *testing.T) {
+	app, err := New(Identity{Name: "Demo"}, Group("box", "Box"), Group("quiet", "Quiet"),
+		simpleRunnable("inspect"), Alias("box pick", "inspect"), Alias("pk", "box"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, args := range [][]string{{"box", "--help"}, {"help", "box"}, {"pk", "--help"}, {"help", "pk"}} {
+		var output bytes.Buffer
+		outcome := app.Execute(context.Background(), args, Streams{Out: &output, Err: io.Discard})
+		if outcome.Kind != OutcomeSuccess || !strings.Contains(output.String(), "pick → inspect") {
+			t.Errorf("Execute(%q) = %v, help %q", args, outcome.Kind, output.String())
+		}
+	}
+	var output bytes.Buffer
+	outcome := app.Execute(context.Background(), []string{"quiet", "--help"}, Streams{Out: &output, Err: io.Discard})
+	if outcome.Kind != OutcomeSuccess || strings.Contains(output.String(), "Command Aliases:") {
+		t.Fatalf("unaliased group help = %v, %q", outcome.Kind, output.String())
+	}
+	if outcome := app.Execute(context.Background(), []string{"box", "pick"}, Streams{Out: io.Discard, Err: io.Discard}); outcome.Kind != OutcomeSuccess {
+		t.Fatal("alias route became unavailable")
+	}
+}
+
 func routeTestApp(t *testing.T, extra ...Declaration) *App {
 	t.Helper()
 	collections := simpleRunnable("collections")