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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { vi, describe, it, expect, beforeEach, afterEach, Mock } from 'vitest';
import { InstallationManager } from './installationManager.js';
import * as fs from 'node:fs';
import * as os from 'node:os';
import path from 'node:path';
import { randomUUID } from 'crypto';
vi.mock('node:fs', async (importOriginal) => {
const actual = await importOriginal<typeof import('node:fs')>();
return {
...actual,
readFileSync: vi.fn(actual.readFileSync),
existsSync: vi.fn(actual.existsSync),
} as typeof actual;
});
vi.mock('os', async (importOriginal) => {
const os = await importOriginal<typeof import('os')>();
return {
...os,
homedir: vi.fn(),
};
});
vi.mock('crypto', async (importOriginal) => {
const crypto = await importOriginal<typeof import('crypto')>();
return {
...crypto,
randomUUID: vi.fn(),
};
});
describe('InstallationManager', () => {
let tempHomeDir: string;
let installationManager: InstallationManager;
const installationIdFile = () =>
path.join(tempHomeDir, '.gemini', 'installation_id');
beforeEach(() => {
tempHomeDir = fs.mkdtempSync(
path.join(os.tmpdir(), 'gemini-cli-test-home-'),
);
(os.homedir as Mock).mockReturnValue(tempHomeDir);
installationManager = new InstallationManager();
});
afterEach(() => {
fs.rmSync(tempHomeDir, { recursive: true, force: true });
vi.clearAllMocks();
});
describe('getInstallationId', () => {
it('should create and write a new installation ID if one does not exist', () => {
const newId = 'new-uuid-123';
(randomUUID as Mock).mockReturnValue(newId);
const installationId = installationManager.getInstallationId();
expect(installationId).toBe(newId);
expect(fs.existsSync(installationIdFile())).toBe(true);
expect(fs.readFileSync(installationIdFile(), 'utf-8')).toBe(newId);
});
it('should read an existing installation ID from a file', () => {
const existingId = 'existing-uuid-123';
fs.mkdirSync(path.dirname(installationIdFile()), { recursive: true });
fs.writeFileSync(installationIdFile(), existingId);
const installationId = installationManager.getInstallationId();
expect(installationId).toBe(existingId);
});
it('should return the same ID on subsequent calls', () => {
const firstId = installationManager.getInstallationId();
const secondId = installationManager.getInstallationId();
expect(secondId).toBe(firstId);
});
it('should handle read errors and return a fallback ID', () => {
vi.mocked(fs.existsSync).mockReturnValueOnce(true);
const readSpy = vi.mocked(fs.readFileSync);
readSpy.mockImplementationOnce(() => {
throw new Error('Read error');
});
const consoleErrorSpy = vi
.spyOn(console, 'error')
.mockImplementation(() => {});
const id = installationManager.getInstallationId();
expect(id).toBe('123456789');
expect(consoleErrorSpy).toHaveBeenCalled();
});
});
});
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