LibreChat/api/server/controllers/PluginController.spec.js
Danny Avila 386900fb4f
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🧰 refactor: Decouple MCP Tools from System Tools (#9748)
2025-09-21 07:56:40 -04:00

493 lines
16 KiB
JavaScript

const { getCachedTools, getAppConfig } = require('~/server/services/Config');
const { getLogStores } = require('~/cache');
jest.mock('@librechat/data-schemas', () => ({
logger: {
debug: jest.fn(),
error: jest.fn(),
warn: jest.fn(),
},
}));
jest.mock('~/server/services/Config', () => ({
getCachedTools: jest.fn(),
getAppConfig: jest.fn().mockResolvedValue({
filteredTools: [],
includedTools: [],
}),
setCachedTools: jest.fn(),
}));
// loadAndFormatTools mock removed - no longer used in PluginController
// getMCPManager mock removed - no longer used in PluginController
jest.mock('~/app/clients/tools', () => ({
availableTools: [],
toolkits: [],
}));
jest.mock('~/cache', () => ({
getLogStores: jest.fn(),
}));
const { getAvailableTools, getAvailablePluginsController } = require('./PluginController');
describe('PluginController', () => {
let mockReq, mockRes, mockCache;
beforeEach(() => {
jest.clearAllMocks();
mockReq = {
user: { id: 'test-user-id' },
config: {
filteredTools: [],
includedTools: [],
},
};
mockRes = { status: jest.fn().mockReturnThis(), json: jest.fn() };
mockCache = { get: jest.fn(), set: jest.fn() };
getLogStores.mockReturnValue(mockCache);
// Clear availableTools and toolkits arrays before each test
require('~/app/clients/tools').availableTools.length = 0;
require('~/app/clients/tools').toolkits.length = 0;
// Reset getCachedTools mock to ensure clean state
getCachedTools.mockReset();
// Reset getAppConfig mock to ensure clean state with default values
getAppConfig.mockReset();
getAppConfig.mockResolvedValue({
filteredTools: [],
includedTools: [],
});
});
describe('getAvailablePluginsController', () => {
it('should use filterUniquePlugins to remove duplicate plugins', async () => {
// Add plugins with duplicates to availableTools
const mockPlugins = [
{ name: 'Plugin1', pluginKey: 'key1', description: 'First' },
{ name: 'Plugin1', pluginKey: 'key1', description: 'First duplicate' },
{ name: 'Plugin2', pluginKey: 'key2', description: 'Second' },
];
require('~/app/clients/tools').availableTools.push(...mockPlugins);
mockCache.get.mockResolvedValue(null);
// Configure getAppConfig to return the expected config
getAppConfig.mockResolvedValueOnce({
filteredTools: [],
includedTools: [],
});
await getAvailablePluginsController(mockReq, mockRes);
expect(mockRes.status).toHaveBeenCalledWith(200);
const responseData = mockRes.json.mock.calls[0][0];
// The real filterUniquePlugins should have removed the duplicate
expect(responseData).toHaveLength(2);
expect(responseData[0].pluginKey).toBe('key1');
expect(responseData[1].pluginKey).toBe('key2');
});
it('should use checkPluginAuth to verify plugin authentication', async () => {
// checkPluginAuth returns false for plugins without authConfig
// so authenticated property won't be added
const mockPlugin = { name: 'Plugin1', pluginKey: 'key1', description: 'First' };
require('~/app/clients/tools').availableTools.push(mockPlugin);
mockCache.get.mockResolvedValue(null);
// Configure getAppConfig to return the expected config
getAppConfig.mockResolvedValueOnce({
filteredTools: [],
includedTools: [],
});
await getAvailablePluginsController(mockReq, mockRes);
const responseData = mockRes.json.mock.calls[0][0];
// The real checkPluginAuth returns false for plugins without authConfig, so authenticated property is not added
expect(responseData[0].authenticated).toBeUndefined();
});
it('should return cached plugins when available', async () => {
const cachedPlugins = [
{ name: 'CachedPlugin', pluginKey: 'cached', description: 'Cached plugin' },
];
mockCache.get.mockResolvedValue(cachedPlugins);
await getAvailablePluginsController(mockReq, mockRes);
// When cache is hit, we return immediately without processing
expect(mockRes.json).toHaveBeenCalledWith(cachedPlugins);
});
it('should filter plugins based on includedTools', async () => {
const mockPlugins = [
{ name: 'Plugin1', pluginKey: 'key1', description: 'First' },
{ name: 'Plugin2', pluginKey: 'key2', description: 'Second' },
];
require('~/app/clients/tools').availableTools.push(...mockPlugins);
mockCache.get.mockResolvedValue(null);
// Configure getAppConfig to return config with includedTools
getAppConfig.mockResolvedValueOnce({
filteredTools: [],
includedTools: ['key1'],
});
await getAvailablePluginsController(mockReq, mockRes);
const responseData = mockRes.json.mock.calls[0][0];
expect(responseData).toHaveLength(1);
expect(responseData[0].pluginKey).toBe('key1');
});
});
describe('getAvailableTools', () => {
it('should use filterUniquePlugins to deduplicate combined tools', async () => {
const mockUserTools = {
'user-tool': {
type: 'function',
function: {
name: 'user-tool',
description: 'User tool',
parameters: { type: 'object', properties: {} },
},
},
};
const mockCachedPlugins = [
{ name: 'user-tool', pluginKey: 'user-tool', description: 'Duplicate user tool' },
{ name: 'ManifestTool', pluginKey: 'manifest-tool', description: 'Manifest tool' },
];
mockCache.get.mockResolvedValue(mockCachedPlugins);
getCachedTools.mockResolvedValueOnce(mockUserTools);
mockReq.config = {
mcpConfig: null,
paths: { structuredTools: '/mock/path' },
};
await getAvailableTools(mockReq, mockRes);
expect(mockRes.status).toHaveBeenCalledWith(200);
const responseData = mockRes.json.mock.calls[0][0];
expect(Array.isArray(responseData)).toBe(true);
// The real filterUniquePlugins should have deduplicated tools with same pluginKey
const userToolCount = responseData.filter((tool) => tool.pluginKey === 'user-tool').length;
expect(userToolCount).toBe(1);
});
it('should use checkPluginAuth to verify authentication status', async () => {
// Add a plugin to availableTools that will be checked
const mockPlugin = {
name: 'Tool1',
pluginKey: 'tool1',
description: 'Tool 1',
// No authConfig means checkPluginAuth returns false
};
require('~/app/clients/tools').availableTools.push(mockPlugin);
mockCache.get.mockResolvedValue(null);
// getCachedTools returns the tool definitions
getCachedTools.mockResolvedValueOnce({
tool1: {
type: 'function',
function: {
name: 'tool1',
description: 'Tool 1',
parameters: {},
},
},
});
mockReq.config = {
mcpConfig: null,
paths: { structuredTools: '/mock/path' },
};
await getAvailableTools(mockReq, mockRes);
expect(mockRes.status).toHaveBeenCalledWith(200);
const responseData = mockRes.json.mock.calls[0][0];
expect(Array.isArray(responseData)).toBe(true);
const tool = responseData.find((t) => t.pluginKey === 'tool1');
expect(tool).toBeDefined();
// The real checkPluginAuth returns false for plugins without authConfig, so authenticated property is not added
expect(tool.authenticated).toBeUndefined();
});
it('should use getToolkitKey for toolkit validation', async () => {
const mockToolkit = {
name: 'Toolkit1',
pluginKey: 'toolkit1',
description: 'Toolkit 1',
toolkit: true,
};
require('~/app/clients/tools').availableTools.push(mockToolkit);
// Mock toolkits to have a mapping
require('~/app/clients/tools').toolkits.push({
name: 'Toolkit1',
pluginKey: 'toolkit1',
tools: ['toolkit1_function'],
});
mockCache.get.mockResolvedValue(null);
// getCachedTools returns the tool definitions
getCachedTools.mockResolvedValueOnce({
toolkit1_function: {
type: 'function',
function: {
name: 'toolkit1_function',
description: 'Toolkit function',
parameters: {},
},
},
});
mockReq.config = {
mcpConfig: null,
paths: { structuredTools: '/mock/path' },
};
await getAvailableTools(mockReq, mockRes);
expect(mockRes.status).toHaveBeenCalledWith(200);
const responseData = mockRes.json.mock.calls[0][0];
expect(Array.isArray(responseData)).toBe(true);
const toolkit = responseData.find((t) => t.pluginKey === 'toolkit1');
expect(toolkit).toBeDefined();
});
});
describe('helper function integration', () => {
it('should handle error cases gracefully', async () => {
mockCache.get.mockRejectedValue(new Error('Cache error'));
await getAvailableTools(mockReq, mockRes);
expect(mockRes.status).toHaveBeenCalledWith(500);
expect(mockRes.json).toHaveBeenCalledWith({ message: 'Cache error' });
});
});
describe('edge cases with undefined/null values', () => {
it('should handle undefined cache gracefully', async () => {
getLogStores.mockReturnValue(undefined);
await getAvailableTools(mockReq, mockRes);
expect(mockRes.status).toHaveBeenCalledWith(500);
});
it('should handle null cachedTools and cachedUserTools', async () => {
mockCache.get.mockResolvedValue(null);
// getCachedTools returns empty object instead of null
getCachedTools.mockResolvedValueOnce({});
mockReq.config = {
mcpConfig: null,
paths: { structuredTools: '/mock/path' },
};
await getAvailableTools(mockReq, mockRes);
// Should handle null values gracefully
expect(mockRes.status).toHaveBeenCalledWith(200);
expect(mockRes.json).toHaveBeenCalledWith([]);
});
it('should handle when getCachedTools returns undefined', async () => {
mockCache.get.mockResolvedValue(null);
mockReq.config = {
mcpConfig: null,
paths: { structuredTools: '/mock/path' },
};
// Mock getCachedTools to return undefined
getCachedTools.mockReset();
getCachedTools.mockResolvedValueOnce(undefined);
await getAvailableTools(mockReq, mockRes);
// Should handle undefined values gracefully
expect(mockRes.status).toHaveBeenCalledWith(200);
expect(mockRes.json).toHaveBeenCalledWith([]);
});
it('should handle empty toolDefinitions object', async () => {
mockCache.get.mockResolvedValue(null);
// Reset getCachedTools to ensure clean state
getCachedTools.mockReset();
getCachedTools.mockResolvedValue({});
mockReq.config = {}; // No mcpConfig at all
// Ensure no plugins are available
require('~/app/clients/tools').availableTools.length = 0;
await getAvailableTools(mockReq, mockRes);
// With empty tool definitions, no tools should be in the final output
expect(mockRes.json).toHaveBeenCalledWith([]);
});
it('should handle undefined filteredTools and includedTools', async () => {
mockReq.config = {};
mockCache.get.mockResolvedValue(null);
// Configure getAppConfig to return config with undefined properties
// The controller will use default values [] for filteredTools and includedTools
getAppConfig.mockResolvedValueOnce({});
await getAvailablePluginsController(mockReq, mockRes);
expect(mockRes.status).toHaveBeenCalledWith(200);
expect(mockRes.json).toHaveBeenCalledWith([]);
});
it('should handle toolkit with undefined toolDefinitions keys', async () => {
const mockToolkit = {
name: 'Toolkit1',
pluginKey: 'toolkit1',
description: 'Toolkit 1',
toolkit: true,
};
// No need to mock app.locals anymore as it's not used
// Add the toolkit to availableTools
require('~/app/clients/tools').availableTools.push(mockToolkit);
mockCache.get.mockResolvedValue(null);
// getCachedTools returns empty object to avoid null reference error
getCachedTools.mockResolvedValueOnce({});
mockReq.config = {
mcpConfig: null,
paths: { structuredTools: '/mock/path' },
};
await getAvailableTools(mockReq, mockRes);
// Should handle null toolDefinitions gracefully
expect(mockRes.status).toHaveBeenCalledWith(200);
});
it('should handle undefined toolDefinitions when checking isToolDefined (traversaal_search bug)', async () => {
// This test reproduces the bug where toolDefinitions is undefined
// and accessing toolDefinitions[plugin.pluginKey] causes a TypeError
const mockPlugin = {
name: 'Traversaal Search',
pluginKey: 'traversaal_search',
description: 'Search plugin',
};
// Add the plugin to availableTools
require('~/app/clients/tools').availableTools.push(mockPlugin);
mockCache.get.mockResolvedValue(null);
mockReq.config = {
mcpConfig: null,
paths: { structuredTools: '/mock/path' },
};
// CRITICAL: getCachedTools returns undefined
// This is what causes the bug when trying to access toolDefinitions[plugin.pluginKey]
getCachedTools.mockResolvedValueOnce(undefined);
// This should not throw an error with the optional chaining fix
await getAvailableTools(mockReq, mockRes);
// Should handle undefined toolDefinitions gracefully and return empty array
expect(mockRes.status).toHaveBeenCalledWith(200);
expect(mockRes.json).toHaveBeenCalledWith([]);
});
it('should re-initialize tools from appConfig when cache returns null', async () => {
// Setup: Initial state with tools in appConfig
const mockAppTools = {
tool1: {
type: 'function',
function: {
name: 'tool1',
description: 'Tool 1',
parameters: {},
},
},
tool2: {
type: 'function',
function: {
name: 'tool2',
description: 'Tool 2',
parameters: {},
},
},
};
// Add matching plugins to availableTools
require('~/app/clients/tools').availableTools.push(
{ name: 'Tool 1', pluginKey: 'tool1', description: 'Tool 1' },
{ name: 'Tool 2', pluginKey: 'tool2', description: 'Tool 2' },
);
// Simulate cache cleared state (returns null)
mockCache.get.mockResolvedValue(null);
getCachedTools.mockResolvedValueOnce(null); // Global tools (cache cleared)
mockReq.config = {
filteredTools: [],
includedTools: [],
availableTools: mockAppTools,
};
// Mock setCachedTools to verify it's called to re-initialize
const { setCachedTools } = require('~/server/services/Config');
await getAvailableTools(mockReq, mockRes);
// Should have re-initialized the cache with tools from appConfig
expect(setCachedTools).toHaveBeenCalledWith(mockAppTools);
// Should still return tools successfully
expect(mockRes.status).toHaveBeenCalledWith(200);
const responseData = mockRes.json.mock.calls[0][0];
expect(responseData).toHaveLength(2);
expect(responseData.find((t) => t.pluginKey === 'tool1')).toBeDefined();
expect(responseData.find((t) => t.pluginKey === 'tool2')).toBeDefined();
});
it('should handle cache clear without appConfig.availableTools gracefully', async () => {
// Setup: appConfig without availableTools
getAppConfig.mockResolvedValue({
filteredTools: [],
includedTools: [],
// No availableTools property
});
// Clear availableTools array
require('~/app/clients/tools').availableTools.length = 0;
// Cache returns null (cleared state)
mockCache.get.mockResolvedValue(null);
getCachedTools.mockResolvedValueOnce(null); // Global tools (cache cleared)
mockReq.config = {
filteredTools: [],
includedTools: [],
// No availableTools
};
await getAvailableTools(mockReq, mockRes);
// Should handle gracefully without crashing
expect(mockRes.status).toHaveBeenCalledWith(200);
expect(mockRes.json).toHaveBeenCalledWith([]);
});
});
});