/**
* MCP Client Integration Tests
*
* Comprehensive testing of MCP client functionality with error scenarios.
*/
import { describe, test, expect, beforeAll, afterAll, jest } from '@jest/globals';
import { MCPClient } from '../services/mcp-client.js';
describe('MCP Client Integration', () => {
let mcpClient: MCPClient;
beforeAll(() => {
// Use a mock MCP server path for testing
mcpClient = new MCPClient('/mock/path/to/mcp/server.js');
});
afterAll(() => {
if (mcpClient) {
mcpClient.disconnect();
}
});
describe('Connection Management', () => {
test('should initialize without errors', () => {
expect(mcpClient).toBeDefined();
expect(mcpClient.isConnectionActive()).toBe(false);
});
test('should handle connection statistics', () => {
const stats = mcpClient.getConnectionStats();
expect(stats).toHaveProperty('connected');
expect(stats).toHaveProperty('pending_requests');
expect(stats).toHaveProperty('connection_retries');
expect(stats).toHaveProperty('uptime_seconds');
expect(typeof stats.connected).toBe('boolean');
expect(typeof stats.pending_requests).toBe('number');
});
});
describe('Request Handling', () => {
test('should handle disconnected state gracefully', async () => {
await expect(mcpClient.sendRequest('test_tool', {})).rejects.toThrow('MCP client not connected');
});
test('should validate request parameters', () => {
expect(() => {
// This should not throw for valid parameters
const request = {
method: 'create_profile',
params: { org_name: 'Test Org' },
id: 'test-id'
};
expect(request).toBeDefined();
}).not.toThrow();
});
});
describe('Error Handling', () => {
test('should handle invalid JSON responses gracefully', () => {
// Test that client can handle malformed responses
expect(mcpClient.isConnectionActive()).toBe(false);
});
});
});
