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* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect, vi, beforeEach } from 'vitest';
import type { Command } from './types.js';
const {
mockExtensionsCommand,
mockListExtensionsCommand,
mockExtensionsCommandInstance,
mockListExtensionsCommandInstance,
} = vi.hoisted(() => {
const listInstance: Command = {
name: 'extensions list',
description: 'Lists all installed extensions.',
execute: vi.fn(),
};
const extInstance: Command = {
name: 'extensions',
description: 'Manage extensions.',
execute: vi.fn(),
subCommands: [listInstance],
};
return {
mockListExtensionsCommandInstance: listInstance,
mockExtensionsCommandInstance: extInstance,
mockExtensionsCommand: vi.fn(() => extInstance),
mockListExtensionsCommand: vi.fn(() => listInstance),
};
});
vi.mock('./extensions.js', () => ({
ExtensionsCommand: mockExtensionsCommand,
ListExtensionsCommand: mockListExtensionsCommand,
}));
vi.mock('./init.js', () => ({
InitCommand: vi.fn(() => ({
name: 'init',
description: 'Initializes the server.',
execute: vi.fn(),
})),
}));
vi.mock('./restore.js', () => ({
RestoreCommand: vi.fn(() => ({
name: 'restore',
description: 'Restores the server.',
execute: vi.fn(),
})),
}));
import { commandRegistry } from './command-registry.js';
describe('CommandRegistry', () => {
beforeEach(async () => {
vi.clearAllMocks();
commandRegistry.initialize();
});
it('should register ExtensionsCommand on initialization', async () => {
expect(mockExtensionsCommand).toHaveBeenCalled();
const command = commandRegistry.get('extensions');
expect(command).toBe(mockExtensionsCommandInstance);
}, 20000);
it('should register sub commands on initialization', async () => {
const command = commandRegistry.get('extensions list');
expect(command).toBe(mockListExtensionsCommandInstance);
});
it('get() should return undefined for a non-existent command', async () => {
const command = commandRegistry.get('non-existent');
expect(command).toBeUndefined();
});
it('register() should register a new command', async () => {
const mockCommand: Command = {
name: 'test-command',
description: '',
execute: vi.fn(),
};
commandRegistry.register(mockCommand);
const command = commandRegistry.get('test-command');
expect(command).toBe(mockCommand);
});
it('register() should register a nested command', async () => {
const mockSubSubCommand: Command = {
name: 'test-command-sub-sub',
description: '',
execute: vi.fn(),
};
const mockSubCommand: Command = {
name: 'test-command-sub',
description: '',
execute: vi.fn(),
subCommands: [mockSubSubCommand],
};
const mockCommand: Command = {
name: 'test-command',
description: '',
execute: vi.fn(),
subCommands: [mockSubCommand],
};
commandRegistry.register(mockCommand);
const command = commandRegistry.get('test-command');
const subCommand = commandRegistry.get('test-command-sub');
const subSubCommand = commandRegistry.get('test-command-sub-sub');
expect(command).toBe(mockCommand);
expect(subCommand).toBe(mockSubCommand);
expect(subSubCommand).toBe(mockSubSubCommand);
});
it('register() should not enter an infinite loop with a cyclic command', async () => {
const { debugLogger } = await import('@google/gemini-cli-core');
const warnSpy = vi.spyOn(debugLogger, 'warn').mockImplementation(() => {});
const mockCommand: Command = {
name: 'cyclic-command',
description: '',
subCommands: [],
execute: vi.fn(),
};
mockCommand.subCommands?.push(mockCommand); // Create cycle
commandRegistry.register(mockCommand);
expect(commandRegistry.get('cyclic-command')).toBe(mockCommand);
expect(warnSpy).toHaveBeenCalledWith(
'Command cyclic-command already registered. Skipping.',
);
warnSpy.mockRestore();
});
});
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