simplifier-mcp

import { wrapResourceResult } from '../../src/resources/resourcesresult'; describe('wrapResourceResult', () => { describe('successful function execution', () => { it('should wrap a simple string result', async () => { const testUri = new URL('simplifier://test'); const testFunction = () => 'Hello World'; const result = await wrapResourceResult(testUri, testFunction); expect(result).toEqual({ contents: [{ uri: 'simplifier://test', text: '"Hello World"', mimeType: 'application/json' }] }); }); it('should wrap an object result with pretty formatting', async () => { const testUri = new URL('simplifier://businessobjects'); const testData = { id: '123', name: 'Test Object', properties: { active: true, count: 5 } }; const testFunction = () => testData; const result = await wrapResourceResult(testUri, testFunction); const expectedText = JSON.stringify(testData, null, 2); expect(result).toEqual({ contents: [{ uri: 'simplifier://businessobjects', text: expectedText, mimeType: 'application/json' }] }); // Verify the formatting is pretty-printed expect(result.contents[0].text).toContain(' "id": "123"'); expect(result.contents[0].text).toContain(' "name": "Test Object"'); }); it('should wrap undefined result', async () => { const testUri = new URL('simplifier://undefined-test'); const testFunction = () => undefined; const result = await wrapResourceResult(testUri, testFunction); expect(result).toEqual({ contents: [{ uri: 'simplifier://undefined-test', text: undefined, // JSON.stringify(undefined) returns undefined mimeType: 'application/json' }] }); }); }); describe('error handling', () => { it('should handle synchronous function errors', async () => { const testUri = new URL('simplifier://error-test'); const errorMessage = 'Something went wrong!'; const testFunction = () => { throw new Error(errorMessage); }; const result = await wrapResourceResult(testUri, testFunction); expect(result).toEqual({ contents: [{ uri: 'simplifier://error-test', text: JSON.stringify({ error: `Could not get data! Error: ${errorMessage}` }), mimeType: 'application/json' }] }); }); it('should handle async function errors', async () => { const testUri = new URL('https://api.error.com/test'); const errorMessage = 'Async operation failed'; const testFunction = async () => { await new Promise(resolve => setTimeout(resolve, 5)); throw new Error(errorMessage); }; const result = await wrapResourceResult(testUri, testFunction); expect(result).toEqual({ contents: [{ uri: 'https://api.error.com/test', text: JSON.stringify({ error: `Could not get data! Error: ${errorMessage}` }), mimeType: 'application/json' }] }); }); it('should handle non-Error thrown values', async () => { const testUri = new URL('simplifier://string-error'); const testFunction = () => { throw 'String error message'; }; const result = await wrapResourceResult(testUri, testFunction); expect(result).toEqual({ contents: [{ uri: 'simplifier://string-error', text: JSON.stringify({ error: 'Could not get data! String error message' }), mimeType: 'application/json' }] }); }); it('should handle thrown objects', async () => { const testUri = new URL('simplifier://object-error'); const errorObject = { code: 500, message: 'Internal Server Error' }; const testFunction = () => { throw errorObject; }; const result = await wrapResourceResult(testUri, testFunction); expect(result).toEqual({ contents: [{ uri: 'simplifier://object-error', text: JSON.stringify({ error: `Could not get data! ${errorObject}` }), mimeType: 'application/json' }] }); }); it('should handle null thrown values', async () => { const testUri = new URL('simplifier://null-error'); const testFunction = () => { throw null; }; const result = await wrapResourceResult(testUri, testFunction); expect(result).toEqual({ contents: [{ uri: 'simplifier://null-error', text: JSON.stringify({ error: 'Could not get data! null' }), mimeType: 'application/json' }] }); }); it('should handle async rejection', async () => { const testUri = new URL('simplifier://rejection-test'); const testFunction = () => Promise.reject(new Error('Promise rejected')); const result = await wrapResourceResult(testUri, testFunction); expect(result).toEqual({ contents: [{ uri: 'simplifier://rejection-test', text: JSON.stringify({ error: 'Could not get data! Error: Promise rejected' }), mimeType: 'application/json' }] }); }); }); });