Allow for slash commands to opt-out of autocompletion and /help discovery. (#7847)

packages/cli/src/ui/components/Help.test.tsx

@@ -0,0 +1,63 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/** @vitest-environment jsdom */
+
+import { render } from 'ink-testing-library';
+import { describe, it, expect } from 'vitest';
+import { Help } from './Help.js';
+import type { SlashCommand } from '../commands/types.js';
+import { CommandKind } from '../commands/types.js';
+
+const mockCommands: readonly SlashCommand[] = [
+  {
+    name: 'test',
+    description: 'A test command',
+    kind: CommandKind.BUILT_IN,
+  },
+  {
+    name: 'hidden',
+    description: 'A hidden command',
+    hidden: true,
+    kind: CommandKind.BUILT_IN,
+  },
+  {
+    name: 'parent',
+    description: 'A parent command',
+    kind: CommandKind.BUILT_IN,
+    subCommands: [
+      {
+        name: 'visible-child',
+        description: 'A visible child command',
+        kind: CommandKind.BUILT_IN,
+      },
+      {
+        name: 'hidden-child',
+        description: 'A hidden child command',
+        hidden: true,
+        kind: CommandKind.BUILT_IN,
+      },
+    ],
+  },
+];
+
+describe('Help Component', () => {
+  it('should not render hidden commands', () => {
+    const { lastFrame } = render(<Help commands={mockCommands} />);
+    const output = lastFrame();
+
+    expect(output).toContain('/test');
+    expect(output).not.toContain('/hidden');
+  });
+
+  it('should not render hidden subcommands', () => {
+    const { lastFrame } = render(<Help commands={mockCommands} />);
+    const output = lastFrame();
+
+    expect(output).toContain('visible-child');
+    expect(output).not.toContain('hidden-child');
+  });
+});