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/**
* @license
* Copyright 2026 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect, vi } from 'vitest';
import * as path from 'node:path';
import { Buffer } from 'node:buffer';
import process from 'node:process';
import {
sanitizeArgv,
getSafeName,
verifyIntegrity,
prepareRuntime,
main,
} from './sea-launch.cjs';
// Mocking fs and os
// We need to use vi.mock factory for ESM mocking of built-in modules in Vitest
vi.mock('node:fs', async () => {
const fsMock = {
mkdirSync: vi.fn(),
writeFileSync: vi.fn(),
existsSync: vi.fn(),
renameSync: vi.fn(),
rmSync: vi.fn(),
readFileSync: vi.fn().mockReturnValue('content'),
lstatSync: vi.fn(),
statSync: vi.fn(),
openSync: vi.fn(),
readSync: vi.fn(),
closeSync: vi.fn(),
};
return {
default: fsMock,
...fsMock,
};
});
vi.mock('fs', async () => {
const fsMock = {
mkdirSync: vi.fn(),
writeFileSync: vi.fn(),
existsSync: vi.fn(),
renameSync: vi.fn(),
rmSync: vi.fn(),
readFileSync: vi.fn().mockReturnValue('content'),
lstatSync: vi.fn(),
statSync: vi.fn(),
openSync: vi.fn(),
readSync: vi.fn(),
closeSync: vi.fn(),
};
return {
default: fsMock,
...fsMock,
};
});
vi.mock('node:os', async () => {
const osMock = {
userInfo: () => ({ username: 'user' }),
tmpdir: () => '/tmp',
};
return {
default: osMock,
...osMock,
};
});
vi.mock('os', async () => {
const osMock = {
userInfo: () => ({ username: 'user' }),
tmpdir: () => '/tmp',
};
return {
default: osMock,
...osMock,
};
});
describe('sea-launch', () => {
describe('main', () => {
it('executes main logic', async () => {
const exitSpy = vi.spyOn(process, 'exit').mockImplementation(() => {});
const consoleSpy = vi
.spyOn(globalThis.console, 'error')
.mockImplementation(() => {});
const mockGetAsset = vi.fn((key) => {
if (key === 'manifest.json')
return JSON.stringify({ version: '1.0.0', mainHash: 'h1' });
return Buffer.from('content');
});
await main(mockGetAsset);
expect(consoleSpy).toHaveBeenCalled();
expect(exitSpy).toHaveBeenCalled();
exitSpy.mockRestore();
consoleSpy.mockRestore();
});
});
describe('sanitizeArgv', () => {
it('removes ghost argument when argv[2] matches execPath', () => {
const execPath = '/bin/node';
const argv = ['/bin/node', '/app/script.js', '/bin/node', 'arg1'];
const resolveFn = (p) => p;
const removed = sanitizeArgv(argv, execPath, resolveFn);
expect(removed).toBe(true);
expect(argv).toEqual(['/bin/node', '/app/script.js', 'arg1']);
});
it('does nothing if argv[2] does not match execPath', () => {
const execPath = '/bin/node';
const argv = ['/bin/node', '/app/script.js', 'command', 'arg1'];
const resolveFn = (p) => p;
const removed = sanitizeArgv(argv, execPath, resolveFn);
expect(removed).toBe(false);
expect(argv).toHaveLength(4);
});
it('handles resolving relative paths', () => {
const execPath = '/bin/node';
const argv = ['/bin/node', '/app/script.js', './node', 'arg1'];
const resolveFn = (p) => (p === './node' ? '/bin/node' : p);
const removed = sanitizeArgv(argv, execPath, resolveFn);
expect(removed).toBe(true);
});
});
describe('getSafeName', () => {
it('sanitizes strings', () => {
expect(getSafeName('user@name')).toBe('user_name');
expect(getSafeName('../path')).toBe('.._path');
expect(getSafeName('valid-1.2')).toBe('valid-1.2');
expect(getSafeName(undefined)).toBe('unknown');
});
});
describe('verifyIntegrity', () => {
it('returns true for matching hashes', () => {
const dir = '/tmp/test';
const manifest = {
mainHash: 'hash1',
files: [{ path: 'file.txt', hash: 'hash2' }],
};
const mockFs = {
openSync: vi.fn((p) => {
if (p.endsWith('gemini.mjs')) return 10;
if (p.endsWith('file.txt')) return 20;
throw new Error('Not found');
}),
readSync: vi.fn((fd, buffer) => {
let content = '';
if (fd === 10) content = 'content1';
if (fd === 20) content = 'content2';
// Simulate simple read: write content to buffer and return length once, then return 0
if (!buffer._readDone) {
const buf = Buffer.from(content);
buf.copy(buffer);
buffer._readDone = true;
return buf.length;
} else {
buffer._readDone = false; // Reset for next file
return 0;
}
}),
closeSync: vi.fn(),
};
const mockCrypto = {
createHash: vi.fn(() => ({
update: vi.fn(function (content) {
this._content =
(this._content || '') + Buffer.from(content).toString();
return this;
}),
digest: vi.fn(function () {
if (this._content === 'content1') return 'hash1';
if (this._content === 'content2') return 'hash2';
return 'wrong';
}),
})),
};
expect(verifyIntegrity(dir, manifest, mockFs, mockCrypto)).toBe(true);
});
it('returns false for mismatched hashes', () => {
const dir = '/tmp/test';
const manifest = { mainHash: 'hash1' };
const mockFs = {
openSync: vi.fn(() => 10),
readSync: vi.fn((fd, buffer) => {
if (!buffer._readDone) {
const buf = Buffer.from('content_wrong');
buf.copy(buffer);
buffer._readDone = true;
return buf.length;
}
return 0;
}),
closeSync: vi.fn(),
};
const mockCrypto = {
createHash: vi.fn(() => ({
update: vi.fn(function (content) {
this._content =
(this._content || '') + Buffer.from(content).toString();
return this;
}),
digest: vi.fn(function () {
return 'hash_wrong';
}),
})),
};
expect(verifyIntegrity(dir, manifest, mockFs, mockCrypto)).toBe(false);
});
it('returns false when fs throws error', () => {
const dir = '/tmp/test';
const manifest = { mainHash: 'hash1' };
const mockFs = {
openSync: vi.fn(() => {
throw new Error('FS Error');
}),
};
const mockCrypto = { createHash: vi.fn() };
expect(verifyIntegrity(dir, manifest, mockFs, mockCrypto)).toBe(false);
});
});
describe('prepareRuntime', () => {
const mockManifest = {
version: '1.0.0',
mainHash: 'h1',
files: [{ key: 'f1', path: 'p1', hash: 'h1' }],
};
const mockGetAsset = vi.fn();
const S_IFDIR = 0o40000;
const MODE_700 = 0o700;
it('reuses existing runtime if secure and valid', () => {
const deps = {
fs: {
existsSync: vi.fn(() => true),
rmSync: vi.fn(),
readFileSync: vi.fn(),
openSync: vi.fn(() => 1),
readSync: vi.fn((fd, buffer) => {
if (!buffer._readDone) {
buffer._readDone = true;
return 1;
}
return 0;
}),
closeSync: vi.fn(),
lstatSync: vi.fn(() => ({
isDirectory: () => true,
uid: 1000,
mode: S_IFDIR | MODE_700,
})),
},
os: {
userInfo: () => ({ username: 'user' }),
tmpdir: () => '/tmp',
},
path: path,
processEnv: {},
crypto: {
createHash: vi.fn(() => {
const hash = {
update: vi.fn().mockReturnThis(),
digest: vi.fn(() => 'h1'),
};
return hash;
}),
},
processUid: 1000,
};
deps.fs.readFileSync.mockReturnValue('content');
const runtime = prepareRuntime(mockManifest, mockGetAsset, deps);
expect(runtime).toContain('gemini-runtime-1.0.0-user');
expect(deps.fs.rmSync).not.toHaveBeenCalled();
});
it('recreates runtime if existing has wrong owner', () => {
const deps = {
fs: {
existsSync: vi.fn().mockReturnValueOnce(true).mockReturnValue(false),
rmSync: vi.fn(),
mkdirSync: vi.fn(),
writeFileSync: vi.fn(),
renameSync: vi.fn(),
readFileSync: vi.fn().mockReturnValue('content'),
openSync: vi.fn(() => 1),
readSync: vi.fn((fd, buffer) => {
if (!buffer._readDone) {
buffer._readDone = true;
return 1;
}
return 0;
}),
closeSync: vi.fn(),
lstatSync: vi.fn(() => ({
isDirectory: () => true,
uid: 999, // Wrong UID
mode: S_IFDIR | MODE_700,
})),
},
os: {
userInfo: () => ({ username: 'user' }),
tmpdir: () => '/tmp',
},
path: path,
processEnv: {},
crypto: {
createHash: vi.fn(() => {
const hash = {
update: vi.fn().mockReturnThis(),
digest: vi.fn(() => 'h1'),
};
return hash;
}),
},
processUid: 1000,
processPid: 123,
};
mockGetAsset.mockReturnValue(Buffer.from('asset_content'));
prepareRuntime(mockManifest, mockGetAsset, deps);
expect(deps.fs.rmSync).toHaveBeenCalledWith(
expect.stringContaining('gemini-runtime'),
expect.anything(),
);
expect(deps.fs.mkdirSync).toHaveBeenCalledWith(
expect.stringContaining('gemini-setup'),
expect.anything(),
);
});
it('recreates runtime if existing has wrong permissions', () => {
const deps = {
fs: {
existsSync: vi.fn().mockReturnValueOnce(true).mockReturnValue(false),
rmSync: vi.fn(),
mkdirSync: vi.fn(),
writeFileSync: vi.fn(),
renameSync: vi.fn(),
readFileSync: vi.fn().mockReturnValue('content'),
openSync: vi.fn(() => 1),
readSync: vi.fn((fd, buffer) => {
if (!buffer._readDone) {
buffer._readDone = true;
return 1;
}
return 0;
}),
closeSync: vi.fn(),
lstatSync: vi.fn(() => ({
isDirectory: () => true,
uid: 1000,
mode: S_IFDIR | 0o777, // Too open
})),
},
os: {
userInfo: () => ({ username: 'user' }),
tmpdir: () => '/tmp',
},
path: path,
processEnv: {},
crypto: {
createHash: vi.fn(() => {
const hash = {
update: vi.fn().mockReturnThis(),
digest: vi.fn(() => 'h1'),
};
return hash;
}),
},
processUid: 1000,
processPid: 123,
};
mockGetAsset.mockReturnValue(Buffer.from('asset_content'));
prepareRuntime(mockManifest, mockGetAsset, deps);
expect(deps.fs.rmSync).toHaveBeenCalledWith(
expect.stringContaining('gemini-runtime'),
expect.anything(),
);
});
it('creates new runtime if existing is invalid (integrity check)', () => {
const deps = {
fs: {
existsSync: vi.fn().mockReturnValueOnce(true).mockReturnValue(false),
rmSync: vi.fn(),
mkdirSync: vi.fn(),
writeFileSync: vi.fn(),
renameSync: vi.fn(),
readFileSync: vi.fn().mockReturnValue('wrong_content'),
openSync: vi.fn(() => 1),
readSync: vi.fn((fd, buffer) => {
if (!buffer._readDone) {
buffer._readDone = true;
return 1;
}
return 0;
}),
closeSync: vi.fn(),
lstatSync: vi.fn(() => ({
isDirectory: () => true,
uid: 1000,
mode: S_IFDIR | MODE_700,
})),
},
os: {
userInfo: () => ({ username: 'user' }),
tmpdir: () => '/tmp',
},
path: path,
processEnv: {},
crypto: {
createHash: vi.fn(() => {
const hash = {
update: vi.fn().mockReturnThis(),
digest: vi.fn(() => 'hash_calculated'),
};
return hash;
}),
},
processUid: 1000,
processPid: 123,
};
mockGetAsset.mockReturnValue(Buffer.from('asset_content'));
prepareRuntime(mockManifest, mockGetAsset, deps);
expect(deps.fs.rmSync).toHaveBeenCalledWith(
expect.stringContaining('gemini-runtime'),
expect.anything(),
);
expect(deps.fs.mkdirSync).toHaveBeenCalledWith(
expect.stringContaining('gemini-setup'),
expect.anything(),
);
});
it('handles rename race condition: uses target if secure and valid', () => {
const deps = {
fs: {
existsSync: vi.fn(),
rmSync: vi.fn(),
mkdirSync: vi.fn(),
writeFileSync: vi.fn(),
renameSync: vi.fn(() => {
throw new Error('Rename failed');
}),
readFileSync: vi.fn().mockReturnValue('content'),
openSync: vi.fn(() => 1),
readSync: vi.fn((fd, buffer) => {
if (!buffer._readDone) {
buffer._readDone = true;
return 1;
}
return 0;
}),
closeSync: vi.fn(),
lstatSync: vi.fn(() => ({
isDirectory: () => true,
uid: 1000,
mode: S_IFDIR | MODE_700,
})),
},
os: {
userInfo: () => ({ username: 'user' }),
tmpdir: () => '/tmp',
},
path: path,
processEnv: {},
crypto: {
createHash: vi.fn(() => {
const hash = {
update: vi.fn().mockReturnThis(),
digest: vi.fn(() => 'h1'),
};
return hash;
}),
},
processUid: 1000,
processPid: 123,
};
// 1. Initial exists check -> false
// 2. mkdir checks (destDir) -> false
// 3. renameSync -> throws
// 4. existsSync (race check) -> true
deps.fs.existsSync
.mockReturnValueOnce(false)
.mockReturnValueOnce(false)
.mockReturnValue(true);
mockGetAsset.mockReturnValue(Buffer.from('asset_content'));
const runtime = prepareRuntime(mockManifest, mockGetAsset, deps);
expect(deps.fs.renameSync).toHaveBeenCalled();
expect(runtime).toContain('gemini-runtime');
expect(deps.fs.rmSync).toHaveBeenCalledWith(
expect.stringContaining('gemini-setup'),
expect.anything(),
);
});
it('handles rename race condition: fails if target is insecure', () => {
const deps = {
fs: {
existsSync: vi.fn(),
rmSync: vi.fn(),
mkdirSync: vi.fn(),
writeFileSync: vi.fn(),
renameSync: vi.fn(() => {
throw new Error('Rename failed');
}),
readFileSync: vi.fn().mockReturnValue('content'),
openSync: vi.fn(() => 1),
readSync: vi.fn((fd, buffer) => {
if (!buffer._readDone) {
buffer._readDone = true;
return 1;
}
return 0;
}),
closeSync: vi.fn(),
lstatSync: vi.fn(() => ({
isDirectory: () => true,
uid: 999, // Wrong UID
mode: S_IFDIR | MODE_700,
})),
},
os: {
userInfo: () => ({ username: 'user' }),
tmpdir: () => '/tmp',
},
path: path,
processEnv: {},
crypto: {
createHash: vi.fn(() => {
const hash = {
update: vi.fn().mockReturnThis(),
digest: vi.fn(() => 'h1'),
};
return hash;
}),
},
processUid: 1000,
processPid: 123,
};
deps.fs.existsSync
.mockReturnValueOnce(false)
.mockReturnValueOnce(false)
.mockReturnValue(true);
mockGetAsset.mockReturnValue(Buffer.from('asset_content'));
// Mock process.exit and console.error
const exitSpy = vi.spyOn(process, 'exit').mockImplementation(() => {});
const consoleSpy = vi
.spyOn(globalThis.console, 'error')
.mockImplementation(() => {});
prepareRuntime(mockManifest, mockGetAsset, deps);
expect(exitSpy).toHaveBeenCalledWith(1);
exitSpy.mockRestore();
consoleSpy.mockRestore();
});
it('uses LOCALAPPDATA on Windows if available', () => {
const originalPlatform = process.platform;
Object.defineProperty(process, 'platform', {
value: 'win32',
configurable: true,
});
const deps = {
fs: {
existsSync: vi.fn().mockReturnValue(false),
mkdirSync: vi.fn(),
rmSync: vi.fn(),
writeFileSync: vi.fn(),
renameSync: vi.fn(),
readFileSync: vi.fn().mockReturnValue('content'),
openSync: vi.fn(() => 1),
readSync: vi.fn((fd, buffer) => {
if (!buffer._readDone) {
buffer._readDone = true;
return 1;
}
return 0;
}),
closeSync: vi.fn(),
lstatSync: vi.fn(() => ({
isDirectory: () => true,
uid: 0,
mode: S_IFDIR | MODE_700,
})),
},
os: {
userInfo: () => ({ username: 'user' }),
tmpdir: () => 'C:\\Temp',
},
path: {
join: (...args) => args.join('\\'),
dirname: (p) => p.split('\\').slice(0, -1).join('\\'),
resolve: (p) => p,
},
processEnv: {
LOCALAPPDATA: 'C:\\Users\\User\\AppData\\Local',
},
crypto: {
createHash: vi.fn(() => {
const hash = {
update: vi.fn().mockReturnThis(),
digest: vi.fn(() => 'h1'),
};
return hash;
}),
},
processUid: 'unknown',
};
prepareRuntime(mockManifest, mockGetAsset, deps);
expect(deps.fs.mkdirSync).toHaveBeenCalledWith(
'C:\\Users\\User\\AppData\\Local\\Google\\GeminiCLI',
expect.objectContaining({ recursive: true }),
);
Object.defineProperty(process, 'platform', {
value: originalPlatform,
configurable: true,
});
});
it('falls back to tmpdir on Windows if LOCALAPPDATA is missing', () => {
const originalPlatform = process.platform;
Object.defineProperty(process, 'platform', {
value: 'win32',
configurable: true,
});
const deps = {
fs: {
existsSync: vi.fn().mockReturnValue(false),
mkdirSync: vi.fn(),
rmSync: vi.fn(),
writeFileSync: vi.fn(),
renameSync: vi.fn(),
readFileSync: vi.fn().mockReturnValue('content'),
openSync: vi.fn(() => 1),
readSync: vi.fn((fd, buffer) => {
if (!buffer._readDone) {
buffer._readDone = true;
return 1;
}
return 0;
}),
closeSync: vi.fn(),
lstatSync: vi.fn(() => ({
isDirectory: () => true,
uid: 0,
mode: S_IFDIR | MODE_700,
})),
},
os: {
userInfo: () => ({ username: 'user' }),
tmpdir: () => 'C:\\Temp',
},
path: {
join: (...args) => args.join('\\'),
dirname: (p) => p.split('\\').slice(0, -1).join('\\'),
resolve: (p) => p,
},
processEnv: {}, // Missing LOCALAPPDATA
crypto: {
createHash: vi.fn(() => {
const hash = {
update: vi.fn().mockReturnThis(),
digest: vi.fn(() => 'h1'),
};
return hash;
}),
},
processUid: 'unknown',
};
const runtime = prepareRuntime(mockManifest, mockGetAsset, deps);
// Should use tmpdir
expect(runtime).toContain('C:\\Temp');
expect(runtime).not.toContain('Google\\GeminiCLI');
Object.defineProperty(process, 'platform', {
value: originalPlatform,
configurable: true,
});
});
it('falls back to tmpdir on Windows if mkdir fails', () => {
const originalPlatform = process.platform;
Object.defineProperty(process, 'platform', {
value: 'win32',
configurable: true,
});
const deps = {
fs: {
existsSync: vi.fn().mockReturnValue(false),
mkdirSync: vi.fn((p) => {
if (typeof p === 'string' && p.includes('Google\\GeminiCLI')) {
throw new Error('Permission denied');
}
}),
rmSync: vi.fn(),
writeFileSync: vi.fn(),
renameSync: vi.fn(),
readFileSync: vi.fn().mockReturnValue('content'),
openSync: vi.fn(() => 1),
readSync: vi.fn((fd, buffer) => {
if (!buffer._readDone) {
buffer._readDone = true;
return 1;
}
return 0;
}),
closeSync: vi.fn(),
lstatSync: vi.fn(() => ({
isDirectory: () => true,
uid: 0,
mode: S_IFDIR | MODE_700,
})),
},
os: {
userInfo: () => ({ username: 'user' }),
tmpdir: () => 'C:\\Temp',
},
path: {
join: (...args) => args.join('\\'),
dirname: (p) => p.split('\\').slice(0, -1).join('\\'),
resolve: (p) => p,
},
processEnv: {
LOCALAPPDATA: 'C:\\Users\\User\\AppData\\Local',
},
crypto: {
createHash: vi.fn(() => {
const hash = {
update: vi.fn().mockReturnThis(),
digest: vi.fn(() => 'h1'),
};
return hash;
}),
},
processUid: 'unknown',
};
const runtime = prepareRuntime(mockManifest, mockGetAsset, deps);
// Should use tmpdir
expect(runtime).toContain('C:\\Temp');
expect(deps.fs.mkdirSync).toHaveBeenCalledWith(
expect.stringContaining('Google\\GeminiCLI'),
expect.anything(),
);
Object.defineProperty(process, 'platform', {
value: originalPlatform,
configurable: true,
});
});
});
});