OpenFoodFacts-mcp

import { describe, it, expect, vi, beforeEach } from 'vitest'; import { handleProjectStructure } from '../../src/resources/project-structure'; import { getDirectoryContents } from '../../src/utils/file-utils'; // Mock the file-utils module vi.mock('../../src/utils/file-utils', () => ({ getDirectoryContents: vi.fn() })); describe('Project Structure Resource Handler', () => { beforeEach(() => { vi.resetAllMocks(); }); it('should return directory contents for a valid path', async () => { // Setup mock const mockDirectoryContents = 'file1.txt (file)\nfolder1 (directory)'; vi.mocked(getDirectoryContents).mockResolvedValue(mockDirectoryContents); // Create test URI and URL const uri = 'openfoodfacts://structure/lib'; const url = new URL(uri); // Call the function const result = await handleProjectStructure(uri, url); // Verify mocks were called with the correct path expect(getDirectoryContents).toHaveBeenCalledWith('lib'); // Verify the result expect(result).toEqual({ contents: [{ uri: 'openfoodfacts://structure/lib', text: 'Directory lib:\nfile1.txt (file)\nfolder1 (directory)' }] }); }); it('should return directory contents for the root path', async () => { // Setup mock const mockDirectoryContents = 'folder1 (directory)\nfolder2 (directory)'; vi.mocked(getDirectoryContents).mockResolvedValue(mockDirectoryContents); // Create test URI and URL with root path const uri = 'openfoodfacts://structure/'; const url = new URL(uri); // Call the function const result = await handleProjectStructure(uri, url); // Verify mocks were called with empty string for root expect(getDirectoryContents).toHaveBeenCalledWith(''); // Verify the result expect(result).toEqual({ contents: [{ uri: 'openfoodfacts://structure/', text: 'Directory root:\nfolder1 (directory)\nfolder2 (directory)' }] }); }); it('should handle errors from getDirectoryContents', async () => { // Setup mock to throw an error const errorMessage = 'Directory not found'; vi.mocked(getDirectoryContents).mockRejectedValue(new Error(errorMessage)); // Create test URI and URL const uri = 'openfoodfacts://structure/nonexistent'; const url = new URL(uri); // Call the function const result = await handleProjectStructure(uri, url); // Verify the result contains error information expect(result).toEqual({ contents: [{ uri: 'openfoodfacts://structure/nonexistent', text: `Error accessing directory: ${errorMessage}`, isError: true }] }); }); it('should handle unexpected errors', async () => { // Create test URI and URL const uri = 'invalid-uri'; // This will throw an error when trying to create a URL // Call the function with a parameter that will cause an error const result = await handleProjectStructure(uri, null as any); // Verify the result contains error information expect(result).toEqual({ contents: [{ uri: 'invalid-uri', text: expect.stringContaining('Error processing request:'), isError: true }] }); }); });