gemini-cli/packages/cli/src/config/settings.test.ts

959 lines
34 KiB
TypeScript

/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
/// <reference types="vitest/globals" />
// Mock 'os' first.
import * as osActual from 'os'; // Import for type info for the mock factory
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, // Ensure correct module shape
...originalModule, // Re-export all original members
// We are relying on originalModule's USER_SETTINGS_PATH being constructed with mocked os.homedir()
};
});
// NOW import everything else, including the (now effectively re-exported) settings.js
import * as pathActual from 'path'; // Restored for MOCK_WORKSPACE_SETTINGS_PATH
import {
describe,
it,
expect,
vi,
beforeEach,
afterEach,
type Mocked,
type Mock,
} from 'vitest';
import * as fs from 'fs'; // fs will be mocked separately
import stripJsonComments from 'strip-json-comments'; // Will be mocked separately
// These imports will get the versions from the vi.mock('./settings.js', ...) factory.
import {
loadSettings,
USER_SETTINGS_PATH, // This IS the mocked path.
SYSTEM_SETTINGS_PATH,
SETTINGS_DIRECTORY_NAME, // This is from the original module, but used by the mock.
SettingScope,
} from './settings.js';
const MOCK_WORKSPACE_DIR = '/mock/workspace';
// Use the (mocked) SETTINGS_DIRECTORY_NAME for consistency
const MOCK_WORKSPACE_SETTINGS_PATH = pathActual.join(
MOCK_WORKSPACE_DIR,
SETTINGS_DIRECTORY_NAME,
'settings.json',
);
vi.mock('fs');
vi.mock('strip-json-comments', () => ({
default: vi.fn((content) => content),
}));
describe('Settings Loading and Merging', () => {
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('{}'); // Return valid empty JSON
(mockFsMkdirSync as Mock).mockImplementation(() => undefined);
});
afterEach(() => {
vi.restoreAllMocks();
});
describe('loadSettings', () => {
it('should load empty settings if no files exist', () => {
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.system.settings).toEqual({});
expect(settings.user.settings).toEqual({});
expect(settings.workspace.settings).toEqual({});
expect(settings.merged).toEqual({
customThemes: {},
mcpServers: {},
});
expect(settings.errors.length).toBe(0);
});
it('should load system settings if only system file exists', () => {
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === SYSTEM_SETTINGS_PATH,
);
const systemSettingsContent = {
theme: 'system-default',
sandbox: false,
};
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === SYSTEM_SETTINGS_PATH)
return JSON.stringify(systemSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(fs.readFileSync).toHaveBeenCalledWith(
SYSTEM_SETTINGS_PATH,
'utf-8',
);
expect(settings.system.settings).toEqual(systemSettingsContent);
expect(settings.user.settings).toEqual({});
expect(settings.workspace.settings).toEqual({});
expect(settings.merged).toEqual({
...systemSettingsContent,
customThemes: {},
mcpServers: {},
});
});
it('should load user settings if only user file exists', () => {
const expectedUserSettingsPath = USER_SETTINGS_PATH; // Use the path actually resolved by the (mocked) module
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === expectedUserSettingsPath,
);
const userSettingsContent = {
theme: 'dark',
contextFileName: 'USER_CONTEXT.md',
};
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === expectedUserSettingsPath)
return JSON.stringify(userSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(fs.readFileSync).toHaveBeenCalledWith(
expectedUserSettingsPath,
'utf-8',
);
expect(settings.user.settings).toEqual(userSettingsContent);
expect(settings.workspace.settings).toEqual({});
expect(settings.merged).toEqual({
...userSettingsContent,
customThemes: {},
mcpServers: {},
});
});
it('should load workspace settings if only workspace file exists', () => {
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === MOCK_WORKSPACE_SETTINGS_PATH,
);
const workspaceSettingsContent = {
sandbox: true,
contextFileName: 'WORKSPACE_CONTEXT.md',
};
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === MOCK_WORKSPACE_SETTINGS_PATH)
return JSON.stringify(workspaceSettingsContent);
return '';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(fs.readFileSync).toHaveBeenCalledWith(
MOCK_WORKSPACE_SETTINGS_PATH,
'utf-8',
);
expect(settings.user.settings).toEqual({});
expect(settings.workspace.settings).toEqual(workspaceSettingsContent);
expect(settings.merged).toEqual({
...workspaceSettingsContent,
customThemes: {},
mcpServers: {},
});
});
it('should merge user and workspace settings, with workspace taking precedence', () => {
(mockFsExistsSync as Mock).mockReturnValue(true);
const userSettingsContent = {
theme: 'dark',
sandbox: false,
contextFileName: 'USER_CONTEXT.md',
};
const workspaceSettingsContent = {
sandbox: true,
coreTools: ['tool1'],
contextFileName: 'WORKSPACE_CONTEXT.md',
};
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
if (p === MOCK_WORKSPACE_SETTINGS_PATH)
return JSON.stringify(workspaceSettingsContent);
return '';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.user.settings).toEqual(userSettingsContent);
expect(settings.workspace.settings).toEqual(workspaceSettingsContent);
expect(settings.merged).toEqual({
theme: 'dark',
sandbox: true,
coreTools: ['tool1'],
contextFileName: 'WORKSPACE_CONTEXT.md',
customThemes: {},
mcpServers: {},
});
});
it('should merge system, user and workspace settings, with system taking precedence over workspace, and workspace over user', () => {
(mockFsExistsSync as Mock).mockReturnValue(true);
const systemSettingsContent = {
theme: 'system-theme',
sandbox: false,
allowMCPServers: ['server1', 'server2'],
telemetry: { enabled: false },
};
const userSettingsContent = {
theme: 'dark',
sandbox: true,
contextFileName: 'USER_CONTEXT.md',
};
const workspaceSettingsContent = {
sandbox: false,
coreTools: ['tool1'],
contextFileName: 'WORKSPACE_CONTEXT.md',
allowMCPServers: ['server1', 'server2', 'server3'],
};
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === SYSTEM_SETTINGS_PATH)
return JSON.stringify(systemSettingsContent);
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
if (p === MOCK_WORKSPACE_SETTINGS_PATH)
return JSON.stringify(workspaceSettingsContent);
return '';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.system.settings).toEqual(systemSettingsContent);
expect(settings.user.settings).toEqual(userSettingsContent);
expect(settings.workspace.settings).toEqual(workspaceSettingsContent);
expect(settings.merged).toEqual({
theme: 'system-theme',
sandbox: false,
telemetry: { enabled: false },
coreTools: ['tool1'],
contextFileName: 'WORKSPACE_CONTEXT.md',
allowMCPServers: ['server1', 'server2'],
customThemes: {},
mcpServers: {},
});
});
it('should handle contextFileName correctly when only in user settings', () => {
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === USER_SETTINGS_PATH,
);
const userSettingsContent = { contextFileName: 'CUSTOM.md' };
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
return '';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.merged.contextFileName).toBe('CUSTOM.md');
});
it('should handle contextFileName correctly when only in workspace settings', () => {
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === MOCK_WORKSPACE_SETTINGS_PATH,
);
const workspaceSettingsContent = {
contextFileName: 'PROJECT_SPECIFIC.md',
};
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === MOCK_WORKSPACE_SETTINGS_PATH)
return JSON.stringify(workspaceSettingsContent);
return '';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.merged.contextFileName).toBe('PROJECT_SPECIFIC.md');
});
it('should default contextFileName to undefined if not in any settings file', () => {
(mockFsExistsSync as Mock).mockReturnValue(true);
const userSettingsContent = { theme: 'dark' };
const workspaceSettingsContent = { sandbox: true };
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
if (p === MOCK_WORKSPACE_SETTINGS_PATH)
return JSON.stringify(workspaceSettingsContent);
return '';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.merged.contextFileName).toBeUndefined();
});
it('should load telemetry setting from user settings', () => {
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === USER_SETTINGS_PATH,
);
const userSettingsContent = { telemetry: true };
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.merged.telemetry).toBe(true);
});
it('should load telemetry setting from workspace settings', () => {
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === MOCK_WORKSPACE_SETTINGS_PATH,
);
const workspaceSettingsContent = { telemetry: false };
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === MOCK_WORKSPACE_SETTINGS_PATH)
return JSON.stringify(workspaceSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.merged.telemetry).toBe(false);
});
it('should prioritize workspace telemetry setting over user setting', () => {
(mockFsExistsSync as Mock).mockReturnValue(true);
const userSettingsContent = { telemetry: true };
const workspaceSettingsContent = { telemetry: false };
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
if (p === MOCK_WORKSPACE_SETTINGS_PATH)
return JSON.stringify(workspaceSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.merged.telemetry).toBe(false);
});
it('should have telemetry as undefined if not in any settings file', () => {
(mockFsExistsSync as Mock).mockReturnValue(false); // No settings files exist
(fs.readFileSync as Mock).mockReturnValue('{}');
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.merged.telemetry).toBeUndefined();
expect(settings.merged.customThemes).toEqual({});
expect(settings.merged.mcpServers).toEqual({});
});
it('should merge MCP servers correctly, with workspace taking precedence', () => {
(mockFsExistsSync as Mock).mockReturnValue(true);
const userSettingsContent = {
mcpServers: {
'user-server': {
command: 'user-command',
args: ['--user-arg'],
description: 'User MCP server',
},
'shared-server': {
command: 'user-shared-command',
description: 'User shared server config',
},
},
};
const workspaceSettingsContent = {
mcpServers: {
'workspace-server': {
command: 'workspace-command',
args: ['--workspace-arg'],
description: 'Workspace MCP server',
},
'shared-server': {
command: 'workspace-shared-command',
description: 'Workspace shared server config',
},
},
};
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
if (p === MOCK_WORKSPACE_SETTINGS_PATH)
return JSON.stringify(workspaceSettingsContent);
return '';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.user.settings).toEqual(userSettingsContent);
expect(settings.workspace.settings).toEqual(workspaceSettingsContent);
expect(settings.merged.mcpServers).toEqual({
'user-server': {
command: 'user-command',
args: ['--user-arg'],
description: 'User MCP server',
},
'workspace-server': {
command: 'workspace-command',
args: ['--workspace-arg'],
description: 'Workspace MCP server',
},
'shared-server': {
command: 'workspace-shared-command',
description: 'Workspace shared server config',
},
});
});
it('should handle MCP servers when only in user settings', () => {
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === USER_SETTINGS_PATH,
);
const userSettingsContent = {
mcpServers: {
'user-only-server': {
command: 'user-only-command',
description: 'User only server',
},
},
};
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
return '';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.merged.mcpServers).toEqual({
'user-only-server': {
command: 'user-only-command',
description: 'User only server',
},
});
});
it('should handle MCP servers when only in workspace settings', () => {
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === MOCK_WORKSPACE_SETTINGS_PATH,
);
const workspaceSettingsContent = {
mcpServers: {
'workspace-only-server': {
command: 'workspace-only-command',
description: 'Workspace only server',
},
},
};
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === MOCK_WORKSPACE_SETTINGS_PATH)
return JSON.stringify(workspaceSettingsContent);
return '';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.merged.mcpServers).toEqual({
'workspace-only-server': {
command: 'workspace-only-command',
description: 'Workspace only server',
},
});
});
it('should have mcpServers as empty object if not in any settings file', () => {
(mockFsExistsSync as Mock).mockReturnValue(false); // No settings files exist
(fs.readFileSync as Mock).mockReturnValue('{}');
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.merged.mcpServers).toEqual({});
});
it('should handle JSON parsing errors gracefully', () => {
(mockFsExistsSync as Mock).mockReturnValue(true); // Both files "exist"
const invalidJsonContent = 'invalid json';
const userReadError = new SyntaxError(
"Expected ',' or '}' after property value in JSON at position 10",
);
const workspaceReadError = new SyntaxError(
'Unexpected token i in JSON at position 0',
);
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH) {
// Simulate JSON.parse throwing for user settings
vi.spyOn(JSON, 'parse').mockImplementationOnce(() => {
throw userReadError;
});
return invalidJsonContent; // Content that would cause JSON.parse to throw
}
if (p === MOCK_WORKSPACE_SETTINGS_PATH) {
// Simulate JSON.parse throwing for workspace settings
vi.spyOn(JSON, 'parse').mockImplementationOnce(() => {
throw workspaceReadError;
});
return invalidJsonContent;
}
return '{}'; // Default for other reads
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
// Check that settings are empty due to parsing errors
expect(settings.user.settings).toEqual({});
expect(settings.workspace.settings).toEqual({});
expect(settings.merged).toEqual({
customThemes: {},
mcpServers: {},
});
// Check that error objects are populated in settings.errors
expect(settings.errors).toBeDefined();
// Assuming both user and workspace files cause errors and are added in order
expect(settings.errors.length).toEqual(2);
const userError = settings.errors.find(
(e) => e.path === USER_SETTINGS_PATH,
);
expect(userError).toBeDefined();
expect(userError?.message).toBe(userReadError.message);
const workspaceError = settings.errors.find(
(e) => e.path === MOCK_WORKSPACE_SETTINGS_PATH,
);
expect(workspaceError).toBeDefined();
expect(workspaceError?.message).toBe(workspaceReadError.message);
// Restore JSON.parse mock if it was spied on specifically for this test
vi.restoreAllMocks(); // Or more targeted restore if needed
});
it('should resolve environment variables in user settings', () => {
process.env.TEST_API_KEY = 'user_api_key_from_env';
const userSettingsContent = {
apiKey: '$TEST_API_KEY',
someUrl: 'https://test.com/${TEST_API_KEY}',
};
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === USER_SETTINGS_PATH,
);
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
// @ts-expect-error: dynamic property for test
expect(settings.user.settings.apiKey).toBe('user_api_key_from_env');
// @ts-expect-error: dynamic property for test
expect(settings.user.settings.someUrl).toBe(
'https://test.com/user_api_key_from_env',
);
// @ts-expect-error: dynamic property for test
expect(settings.merged.apiKey).toBe('user_api_key_from_env');
delete process.env.TEST_API_KEY;
});
it('should resolve environment variables in workspace settings', () => {
process.env.WORKSPACE_ENDPOINT = 'workspace_endpoint_from_env';
const workspaceSettingsContent = {
endpoint: '${WORKSPACE_ENDPOINT}/api',
nested: { value: '$WORKSPACE_ENDPOINT' },
};
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === MOCK_WORKSPACE_SETTINGS_PATH,
);
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === MOCK_WORKSPACE_SETTINGS_PATH)
return JSON.stringify(workspaceSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.workspace.settings.endpoint).toBe(
'workspace_endpoint_from_env/api',
);
expect(settings.workspace.settings.nested.value).toBe(
'workspace_endpoint_from_env',
);
// @ts-expect-error: dynamic property for test
expect(settings.merged.endpoint).toBe('workspace_endpoint_from_env/api');
delete process.env.WORKSPACE_ENDPOINT;
});
it('should prioritize user env variables over workspace env variables if keys clash after resolution', () => {
const userSettingsContent = { configValue: '$SHARED_VAR' };
const workspaceSettingsContent = { configValue: '$SHARED_VAR' };
(mockFsExistsSync as Mock).mockReturnValue(true);
const originalSharedVar = process.env.SHARED_VAR;
// Temporarily delete to ensure a clean slate for the test's specific manipulations
delete process.env.SHARED_VAR;
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH) {
process.env.SHARED_VAR = 'user_value_for_user_read'; // Set for user settings read
return JSON.stringify(userSettingsContent);
}
if (p === MOCK_WORKSPACE_SETTINGS_PATH) {
process.env.SHARED_VAR = 'workspace_value_for_workspace_read'; // Set for workspace settings read
return JSON.stringify(workspaceSettingsContent);
}
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
// @ts-expect-error: dynamic property for test
expect(settings.user.settings.configValue).toBe(
'user_value_for_user_read',
);
// @ts-expect-error: dynamic property for test
expect(settings.workspace.settings.configValue).toBe(
'workspace_value_for_workspace_read',
);
// Merged should take workspace's resolved value
// @ts-expect-error: dynamic property for test
expect(settings.merged.configValue).toBe(
'workspace_value_for_workspace_read',
);
// Restore original environment variable state
if (originalSharedVar !== undefined) {
process.env.SHARED_VAR = originalSharedVar;
} else {
delete process.env.SHARED_VAR; // Ensure it's deleted if it wasn't there before
}
});
it('should prioritize workspace env variables over user env variables if keys clash after resolution', () => {
const userSettingsContent = { configValue: '$SHARED_VAR' };
const workspaceSettingsContent = { configValue: '$SHARED_VAR' };
(mockFsExistsSync as Mock).mockReturnValue(true);
const originalSharedVar = process.env.SHARED_VAR;
// Temporarily delete to ensure a clean slate for the test's specific manipulations
delete process.env.SHARED_VAR;
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH) {
process.env.SHARED_VAR = 'user_value_for_user_read'; // Set for user settings read
return JSON.stringify(userSettingsContent);
}
if (p === MOCK_WORKSPACE_SETTINGS_PATH) {
process.env.SHARED_VAR = 'workspace_value_for_workspace_read'; // Set for workspace settings read
return JSON.stringify(workspaceSettingsContent);
}
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.user.settings.configValue).toBe(
'user_value_for_user_read',
);
expect(settings.workspace.settings.configValue).toBe(
'workspace_value_for_workspace_read',
);
// Merged should take workspace's resolved value
expect(settings.merged.configValue).toBe(
'workspace_value_for_workspace_read',
);
// Restore original environment variable state
if (originalSharedVar !== undefined) {
process.env.SHARED_VAR = originalSharedVar;
} else {
delete process.env.SHARED_VAR; // Ensure it's deleted if it wasn't there before
}
});
it('should prioritize system env variables over workspace env variables if keys clash after resolution', () => {
const workspaceSettingsContent = { configValue: '$SHARED_VAR' };
const systemSettingsContent = { configValue: '$SHARED_VAR' };
(mockFsExistsSync as Mock).mockReturnValue(true);
const originalSharedVar = process.env.SHARED_VAR;
// Temporarily delete to ensure a clean slate for the test's specific manipulations
delete process.env.SHARED_VAR;
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === SYSTEM_SETTINGS_PATH) {
process.env.SHARED_VAR = 'system_value_for_system_read'; // Set for system settings read
return JSON.stringify(systemSettingsContent);
}
if (p === MOCK_WORKSPACE_SETTINGS_PATH) {
process.env.SHARED_VAR = 'workspace_value_for_workspace_read'; // Set for workspace settings read
return JSON.stringify(workspaceSettingsContent);
}
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
// @ts-expect-error: dynamic property for test
expect(settings.system.settings.configValue).toBe(
'system_value_for_system_read',
);
// @ts-expect-error: dynamic property for test
expect(settings.workspace.settings.configValue).toBe(
'workspace_value_for_workspace_read',
);
// Merged should take system's resolved value
// @ts-expect-error: dynamic property for test
expect(settings.merged.configValue).toBe('system_value_for_system_read');
// Restore original environment variable state
if (originalSharedVar !== undefined) {
process.env.SHARED_VAR = originalSharedVar;
} else {
delete process.env.SHARED_VAR; // Ensure it's deleted if it wasn't there before
}
});
it('should leave unresolved environment variables as is', () => {
const userSettingsContent = { apiKey: '$UNDEFINED_VAR' };
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === USER_SETTINGS_PATH,
);
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.user.settings.apiKey).toBe('$UNDEFINED_VAR');
expect(settings.merged.apiKey).toBe('$UNDEFINED_VAR');
});
it('should resolve multiple environment variables in a single string', () => {
process.env.VAR_A = 'valueA';
process.env.VAR_B = 'valueB';
const userSettingsContent = { path: '/path/$VAR_A/${VAR_B}/end' };
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === USER_SETTINGS_PATH,
);
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.user.settings.path).toBe('/path/valueA/valueB/end');
delete process.env.VAR_A;
delete process.env.VAR_B;
});
it('should resolve environment variables in arrays', () => {
process.env.ITEM_1 = 'item1_env';
process.env.ITEM_2 = 'item2_env';
const userSettingsContent = { list: ['$ITEM_1', '${ITEM_2}', 'literal'] };
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === USER_SETTINGS_PATH,
);
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.user.settings.list).toEqual([
'item1_env',
'item2_env',
'literal',
]);
delete process.env.ITEM_1;
delete process.env.ITEM_2;
});
it('should correctly pass through null, boolean, and number types, and handle undefined properties', () => {
process.env.MY_ENV_STRING = 'env_string_value';
process.env.MY_ENV_STRING_NESTED = 'env_string_nested_value';
const userSettingsContent = {
nullVal: null,
trueVal: true,
falseVal: false,
numberVal: 123.45,
stringVal: '$MY_ENV_STRING',
nestedObj: {
nestedNull: null,
nestedBool: true,
nestedNum: 0,
nestedString: 'literal',
anotherEnv: '${MY_ENV_STRING_NESTED}',
},
};
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === USER_SETTINGS_PATH,
);
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.user.settings.nullVal).toBeNull();
expect(settings.user.settings.trueVal).toBe(true);
expect(settings.user.settings.falseVal).toBe(false);
expect(settings.user.settings.numberVal).toBe(123.45);
expect(settings.user.settings.stringVal).toBe('env_string_value');
expect(settings.user.settings.undefinedVal).toBeUndefined();
expect(settings.user.settings.nestedObj.nestedNull).toBeNull();
expect(settings.user.settings.nestedObj.nestedBool).toBe(true);
expect(settings.user.settings.nestedObj.nestedNum).toBe(0);
expect(settings.user.settings.nestedObj.nestedString).toBe('literal');
expect(settings.user.settings.nestedObj.anotherEnv).toBe(
'env_string_nested_value',
);
delete process.env.MY_ENV_STRING;
delete process.env.MY_ENV_STRING_NESTED;
});
it('should resolve multiple concatenated environment variables in a single string value', () => {
process.env.TEST_HOST = 'myhost';
process.env.TEST_PORT = '9090';
const userSettingsContent = {
serverAddress: '${TEST_HOST}:${TEST_PORT}/api',
};
(mockFsExistsSync as Mock).mockImplementation(
(p: fs.PathLike) => p === USER_SETTINGS_PATH,
);
(fs.readFileSync as Mock).mockImplementation(
(p: fs.PathOrFileDescriptor) => {
if (p === USER_SETTINGS_PATH)
return JSON.stringify(userSettingsContent);
return '{}';
},
);
const settings = loadSettings(MOCK_WORKSPACE_DIR);
expect(settings.user.settings.serverAddress).toBe('myhost:9090/api');
delete process.env.TEST_HOST;
delete process.env.TEST_PORT;
});
});
describe('LoadedSettings class', () => {
it('setValue should update the correct scope and recompute merged settings', () => {
(mockFsExistsSync as Mock).mockReturnValue(false);
const loadedSettings = loadSettings(MOCK_WORKSPACE_DIR);
vi.mocked(fs.writeFileSync).mockImplementation(() => {});
// mkdirSync is mocked in beforeEach to return undefined, which is fine for void usage
loadedSettings.setValue(SettingScope.User, 'theme', 'matrix');
expect(loadedSettings.user.settings.theme).toBe('matrix');
expect(loadedSettings.merged.theme).toBe('matrix');
expect(fs.writeFileSync).toHaveBeenCalledWith(
USER_SETTINGS_PATH,
JSON.stringify({ theme: 'matrix' }, null, 2),
'utf-8',
);
loadedSettings.setValue(
SettingScope.Workspace,
'contextFileName',
'MY_AGENTS.md',
);
expect(loadedSettings.workspace.settings.contextFileName).toBe(
'MY_AGENTS.md',
);
expect(loadedSettings.merged.contextFileName).toBe('MY_AGENTS.md');
expect(loadedSettings.merged.theme).toBe('matrix'); // User setting should still be there
expect(fs.writeFileSync).toHaveBeenCalledWith(
MOCK_WORKSPACE_SETTINGS_PATH,
JSON.stringify({ contextFileName: 'MY_AGENTS.md' }, null, 2),
'utf-8',
);
// System theme overrides user and workspace themes
loadedSettings.setValue(SettingScope.System, 'theme', 'ocean');
expect(loadedSettings.system.settings.theme).toBe('ocean');
expect(loadedSettings.merged.theme).toBe('ocean');
});
});
});