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* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
/// <reference types="vitest/globals" />
// Mock 'os' first.
import * as osActual from 'node:os';
vi.mock('os', async (importOriginal) => {
const actualOs = await importOriginal<typeof osActual>();
return {
...actualOs,
homedir: vi.fn(() => '/mock/home/user'),
platform: vi.fn(() => 'linux'),
};
});
// Mock './settings.js' to ensure it uses the mocked 'os.homedir()' for its internal constants.
vi.mock('./settings.js', async (importActual) => {
const originalModule = await importActual<typeof import('./settings.js')>();
return {
__esModule: true,
...originalModule,
};
});
// Mock trustedFolders
vi.mock('./trustedFolders.js', () => ({
isWorkspaceTrusted: vi
.fn()
.mockReturnValue({ isTrusted: true, source: 'file' }),
}));
import {
describe,
it,
expect,
vi,
beforeEach,
afterEach,
type Mocked,
type Mock,
} from 'vitest';
import * as fs from 'node:fs';
import stripJsonComments from 'strip-json-comments';
import { isWorkspaceTrusted } from './trustedFolders.js';
import { loadSettings, USER_SETTINGS_PATH } from './settings.js';
const MOCK_WORKSPACE_DIR = '/mock/workspace';
vi.mock('fs', async (importOriginal) => {
const actualFs = await importOriginal<typeof fs>();
return {
...actualFs,
existsSync: vi.fn(),
readFileSync: vi.fn(),
writeFileSync: vi.fn(),
mkdirSync: vi.fn(),
renameSync: vi.fn(),
realpathSync: (p: string) => p,
};
});
vi.mock('./extension.js');
const mockCoreEvents = vi.hoisted(() => ({
emitFeedback: vi.fn(),
}));
vi.mock('@google/gemini-cli-core', async (importOriginal) => {
const actual =
await importOriginal<typeof import('@google/gemini-cli-core')>();
return {
...actual,
coreEvents: mockCoreEvents,
};
});
vi.mock('../utils/commentJson.js', () => ({
updateSettingsFilePreservingFormat: vi.fn(),
}));
vi.mock('strip-json-comments', () => ({
default: vi.fn((content) => content),
}));
describe('Settings Repro', () => {
let mockFsExistsSync: Mocked<typeof fs.existsSync>;
let mockStripJsonComments: Mocked<typeof stripJsonComments>;
let mockFsMkdirSync: Mocked<typeof fs.mkdirSync>;
beforeEach(() => {
vi.resetAllMocks();
mockFsExistsSync = vi.mocked(fs.existsSync);
mockFsMkdirSync = vi.mocked(fs.mkdirSync);
mockStripJsonComments = vi.mocked(stripJsonComments);
vi.mocked(osActual.homedir).mockReturnValue('/mock/home/user');
(mockStripJsonComments as unknown as Mock).mockImplementation(
(jsonString: string) => jsonString,
);
(mockFsExistsSync as Mock).mockReturnValue(false);
(fs.readFileSync as Mock).mockReturnValue('{}');
(mockFsMkdirSync as Mock).mockImplementation(() => undefined);
vi.mocked(isWorkspaceTrusted).mockReturnValue({
isTrusted: true,
source: 'file',
});
});
afterEach(() => {
vi.restoreAllMocks();
});
it('should handle the problematic settings.json without crashing', () => {
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === USER_SETTINGS_PATH,
);
const problemSettingsContent = {
accessibility: {
screenReader: true,
},
ide: {
enabled: false,
hasSeenNudge: true,
},
general: {
debugKeystrokeLogging: false,
preferredEditor: 'vim',
vimMode: false,
},
security: {
auth: {
selectedType: 'gemini-api-key',
},
folderTrust: {
enabled: true,
},
},
tools: {
useRipgrep: true,
shell: {
showColor: true,
enableInteractiveShell: true,
},
},
experimental: {
useModelRouter: false,
enableSubagents: false,
},
agents: {
overrides: {
codebase_investigator: {
enabled: true,
},
},
},
ui: {
accessibility: {
screenReader: false,
},
showMemoryUsage: true,
showStatusInTitle: true,
showCitations: true,
useInkScrolling: true,
footer: {
hideContextPercentage: false,
hideModelInfo: false,
},
},
useWriteTodos: true,
output: {
format: 'text',
},
model: {
compressionThreshold: 0.8,
},
};
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(problemSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
// If it doesn't throw, check if it merged correctly.
// The model.compressionThreshold should be present.
// And model.name should probably be undefined or default, but certainly NOT { compressionThreshold: 0.8 }
expect(settings.merged.model?.compressionThreshold).toBe(0.8);
expect(typeof settings.merged.model?.name).not.toBe('object');
});
});
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