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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { vi, describe, it, expect, beforeEach } from 'vitest';
import { CommandService } from './CommandService.js';
import { type SlashCommand } from '../ui/commands/types.js';
import { memoryCommand } from '../ui/commands/memoryCommand.js';
import { helpCommand } from '../ui/commands/helpCommand.js';
import { clearCommand } from '../ui/commands/clearCommand.js';
import { authCommand } from '../ui/commands/authCommand.js';
import { themeCommand } from '../ui/commands/themeCommand.js';
import { statsCommand } from '../ui/commands/statsCommand.js';
import { privacyCommand } from '../ui/commands/privacyCommand.js';
import { aboutCommand } from '../ui/commands/aboutCommand.js';
// Mock the command modules to isolate the service from the command implementations.
vi.mock('../ui/commands/memoryCommand.js', () => ({
memoryCommand: { name: 'memory', description: 'Mock Memory' },
}));
vi.mock('../ui/commands/helpCommand.js', () => ({
helpCommand: { name: 'help', description: 'Mock Help' },
}));
vi.mock('../ui/commands/clearCommand.js', () => ({
clearCommand: { name: 'clear', description: 'Mock Clear' },
}));
vi.mock('../ui/commands/authCommand.js', () => ({
authCommand: { name: 'auth', description: 'Mock Auth' },
}));
vi.mock('../ui/commands/themeCommand.js', () => ({
themeCommand: { name: 'theme', description: 'Mock Theme' },
}));
vi.mock('../ui/commands/privacyCommand.js', () => ({
privacyCommand: { name: 'privacy', description: 'Mock Privacy' },
}));
vi.mock('../ui/commands/statsCommand.js', () => ({
statsCommand: { name: 'stats', description: 'Mock Stats' },
}));
vi.mock('../ui/commands/aboutCommand.js', () => ({
aboutCommand: { name: 'about', description: 'Mock About' },
}));
describe('CommandService', () => {
describe('when using default production loader', () => {
let commandService: CommandService;
beforeEach(() => {
commandService = new CommandService();
});
it('should initialize with an empty command tree', () => {
const tree = commandService.getCommands();
expect(tree).toBeInstanceOf(Array);
expect(tree.length).toBe(0);
});
describe('loadCommands', () => {
it('should load the built-in commands into the command tree', async () => {
// Pre-condition check
expect(commandService.getCommands().length).toBe(0);
// Action
await commandService.loadCommands();
const tree = commandService.getCommands();
// Post-condition assertions
expect(tree.length).toBe(8);
const commandNames = tree.map((cmd) => cmd.name);
expect(commandNames).toContain('auth');
expect(commandNames).toContain('memory');
expect(commandNames).toContain('help');
expect(commandNames).toContain('clear');
expect(commandNames).toContain('theme');
expect(commandNames).toContain('stats');
expect(commandNames).toContain('privacy');
expect(commandNames).toContain('about');
});
it('should overwrite any existing commands when called again', async () => {
// Load once
await commandService.loadCommands();
expect(commandService.getCommands().length).toBe(8);
// Load again
await commandService.loadCommands();
const tree = commandService.getCommands();
// Should not append, but overwrite
expect(tree.length).toBe(8);
});
});
describe('getCommandTree', () => {
it('should return the current command tree', async () => {
const initialTree = commandService.getCommands();
expect(initialTree).toEqual([]);
await commandService.loadCommands();
const loadedTree = commandService.getCommands();
expect(loadedTree.length).toBe(8);
expect(loadedTree).toEqual([
aboutCommand,
authCommand,
clearCommand,
helpCommand,
memoryCommand,
privacyCommand,
statsCommand,
themeCommand,
]);
});
});
});
describe('when initialized with an injected loader function', () => {
it('should use the provided loader instead of the built-in one', async () => {
// Arrange: Create a set of mock commands.
const mockCommands: SlashCommand[] = [
{ name: 'injected-test-1', description: 'injected 1' },
{ name: 'injected-test-2', description: 'injected 2' },
];
// Arrange: Create a mock loader FUNCTION that resolves with our mock commands.
const mockLoader = vi.fn().mockResolvedValue(mockCommands);
// Act: Instantiate the service WITH the injected loader function.
const commandService = new CommandService(mockLoader);
await commandService.loadCommands();
const tree = commandService.getCommands();
// Assert: The tree should contain ONLY our injected commands.
expect(mockLoader).toHaveBeenCalled(); // Verify our mock loader was actually called.
expect(tree.length).toBe(2);
expect(tree).toEqual(mockCommands);
const commandNames = tree.map((cmd) => cmd.name);
expect(commandNames).not.toContain('memory'); // Verify it didn't load production commands.
});
});
});
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