Mapbox MCP Server

import { patchGlobalFetch, cleanup } from './requestUtils.js'; describe('requestUtils', () => { let originalGlobalFetch: typeof global.fetch; beforeEach(() => { // Save original fetch originalGlobalFetch = global.fetch; }); afterEach(() => { // Restore original fetch global.fetch = originalGlobalFetch; cleanup(); }); describe('patchGlobalFetch', () => { it('should handle case when global.fetch is undefined at module load time', () => { // Simulate scenario where global.fetch doesn't exist initially delete (global as any).fetch; delete (globalThis as any).fetch; // This should throw because no fetch is available expect(() => { patchGlobalFetch({ name: 'TestServer', version: '1.0.0', sha: 'abcdef', tag: 'no-tag', branch: 'default' }); }).toThrow('No fetch implementation available'); }); it('should properly initialize originalFetch before patching', async () => { // Mock fetch function const mockFetch = jest.fn().mockResolvedValue({ ok: true, status: 200, json: async () => ({ success: true }) }); global.fetch = mockFetch; // Patch global fetch patchGlobalFetch({ name: 'TestServer', version: '1.0.0', sha: 'abcdef', tag: 'no-tag', branch: 'default' }); // Make a fetch call await global.fetch('https://example.com', { headers: { 'Custom-Header': 'test' } }); // Verify that the original fetch was called with User-Agent added expect(mockFetch).toHaveBeenCalledWith('https://example.com', { headers: { 'Custom-Header': 'test', 'User-Agent': 'TestServer/1.0.0 (default, no-tag, abcdef)' } }); }); it('should not throw originalFetch is not a function error', async () => { // Mock a scenario where fetch might be called before proper initialization const mockFetch = jest.fn().mockResolvedValue({ ok: true, status: 200, json: async () => ({ success: true }) }); global.fetch = mockFetch; patchGlobalFetch({ name: 'TestServer', version: '1.0.0', sha: 'abcdef', tag: 'no-tag', branch: 'default' }); // This should not throw "originalFetch is not a function" await expect(global.fetch('https://example.com')).resolves.toBeDefined(); }); it('should handle multiple patch calls without breaking', () => { const mockFetch = jest.fn(); global.fetch = mockFetch; // First patch patchGlobalFetch({ name: 'TestServer', version: '1.0.0', sha: 'abcdef', tag: 'no-tag', branch: 'default' }); // Second patch (should not break) patchGlobalFetch({ name: 'TestServer2', version: '2.0.0', sha: 'abcdef2', tag: 'v2', branch: 'main' }); // Should still work expect(typeof global.fetch).toBe('function'); }); it('should restore original fetch on cleanup', () => { const mockFetch = jest.fn(); global.fetch = mockFetch; patchGlobalFetch({ name: 'TestServer', version: '1.0.0', sha: 'abcdef', tag: 'no-tag', branch: 'default' }); // Verify fetch was patched expect(global.fetch).not.toBe(mockFetch); // Cleanup should restore original cleanup(); expect(global.fetch).toBe(mockFetch); }); }); });