import {
mockLoadLists, // Specific mock for this tool
mockMcpServerInstance,
mockTools,
loadServer,
getTool,
} from './helpers';
let consoleErrorSpy: jest.SpyInstance;
describe('MCP Bring! Server - List Tools', () => {
beforeEach(async () => {
consoleErrorSpy = jest.spyOn(console, 'error').mockImplementation(() => {});
jest.clearAllMocks();
mockTools.clear();
await loadServer();
});
afterEach(() => {
consoleErrorSpy.mockRestore();
});
describe('bring.loadLists tool', () => {
it('should be registered with correct name, description, and schema', () => {
expect(mockMcpServerInstance.tool).toHaveBeenCalledWith(
'loadLists',
'Load all shopping lists from Bring!',
{}, // Schema for no-param tool
expect.any(Function), // Callback
);
const tool = getTool('loadLists');
expect(tool).toBeDefined();
expect(tool?.description).toBe('Load all shopping lists from Bring!');
expect(tool?.schema).toEqual({});
});
it('should call BringClient.loadLists and return lists on success', async () => {
const fakeLists = [
{ listUuid: 'uuid1', name: 'Groceries' },
{ listUuid: 'uuid2', name: 'Work' },
];
mockLoadLists.mockResolvedValue(fakeLists);
const tool = getTool('loadLists');
if (!tool) throw new Error('Tool loadLists not found');
const result = await tool.callback({});
expect(mockLoadLists).toHaveBeenCalledTimes(1);
expect(result).toEqual({
content: [{ type: 'text', text: JSON.stringify(fakeLists, null, 2) }],
});
});
it('should return an error message on failed loadLists', async () => {
const errorMessage = 'Network error';
mockLoadLists.mockRejectedValue(new Error(errorMessage));
const tool = getTool('loadLists');
if (!tool) throw new Error('Tool loadLists not found');
const result = await tool.callback({});
expect(mockLoadLists).toHaveBeenCalledTimes(1);
expect(result).toEqual({
content: [{ type: 'text', text: `Failed to load lists: ${errorMessage}` }],
});
});
});
});
