DuckDuckGo Search MCP

import { monicaToolDefinition, monicaToolHandler } from '../../src/tools/monicaTool.js'; import { searchMonica } from '../../src/utils/search_monica.js'; import { jest } from '@jest/globals'; // Mock the search utility jest.mock('../../src/utils/search_monica.js', () => ({ searchMonica: jest.fn() })); describe('Tools: monicaTool.js', () => { beforeEach(() => { jest.clearAllMocks(); }); describe('monicaToolDefinition', () => { test('should have correct tool name', () => { expect(monicaToolDefinition.name).toBe('monica-search'); }); test('should have correct tool title', () => { expect(monicaToolDefinition.title).toBe('Monica AI Search'); }); test('should have proper description', () => { expect(monicaToolDefinition.description).toContain('Monica AI'); expect(monicaToolDefinition.description).toContain('AI-generated responses'); }); test('should have correct input schema', () => { const schema = monicaToolDefinition.inputSchema; expect(schema.type).toBe('object'); expect(schema.properties.query).toBeDefined(); expect(schema.required).toContain('query'); }); test('should validate query parameter', () => { const schema = monicaToolDefinition.inputSchema; expect(schema.properties.query.type).toBe('string'); expect(schema.properties.query.description).toBeDefined(); }); test('should have proper annotations', () => { expect(monicaToolDefinition.annotations.readOnlyHint).toBe(true); expect(monicaToolDefinition.annotations.openWorldHint).toBe(false); }); }); describe('monicaToolHandler', () => { test('should handle valid query parameters', async () => { searchMonica.mockResolvedValue('Mock Monica AI response'); const params = { query: 'Latest AI trends' }; const result = await monicaToolHandler(params); expect(searchMonica).toHaveBeenCalledWith('Latest AI trends'); expect(result.content).toBeDefined(); expect(result.content[0].type).toBe('text'); expect(result.content[0].text).toBe('Mock Monica AI response'); }); test('should handle empty results gracefully', async () => { searchMonica.mockResolvedValue(''); const params = { query: 'Non-existent topic' }; const result = await monicaToolHandler(params); expect(result.content[0].text).toBe('No results found.'); }); test('should handle search errors gracefully', async () => { searchMonica.mockRejectedValue(new Error('Monica API error')); const params = { query: 'Error causing query' }; await expect(monicaToolHandler(params)) .rejects.toThrow('Monica API error'); }); test('should handle queries with special characters', async () => { searchMonica.mockResolvedValue('Response with special chars'); const params = { query: 'AI & ML "deep learning"?' }; const result = await monicaToolHandler(params); expect(searchMonica).toHaveBeenCalledWith('AI & ML "deep learning"?'); expect(result.content).toBeDefined(); }); test('should handle very long queries', async () => { const longQuery = 'A'.repeat(1000); searchMonica.mockResolvedValue('Response to long query'); const params = { query: longQuery }; const result = await monicaToolHandler(params); expect(searchMonica).toHaveBeenCalledWith(longQuery); expect(result.content).toBeDefined(); }); test('should handle empty query parameters', async () => { searchMonica.mockResolvedValue('Response to empty query'); const params = { query: '' }; const result = await monicaToolHandler(params); expect(searchMonica).toHaveBeenCalledWith(''); expect(result.content).toBeDefined(); }); }); });