// Contract Test: MCP Initialize
// This test validates the MCP initialization contract
// Expected to FAIL until implementation is complete
describe('MCP Initialize Contract', () => {
it('should initialize with latest protocol version', async () => {
const request = {
method: 'initialize',
params: {
protocolVersion: '2025-06-18',
capabilities: {}
},
id: 1
};
// This will fail until implementation exists
const response = await sendMcpRequest(request);
expect(response).toHaveProperty('result');
expect(response).toHaveProperty('id', 1);
expect(response.result).toHaveProperty('protocolVersion');
expect(response.result).toHaveProperty('capabilities');
expect(response.result).toHaveProperty('serverInfo');
expect(response.result.serverInfo).toHaveProperty('name', 'legco-search-mcp');
expect(response.result.serverInfo).toHaveProperty('version');
});
it('should negotiate protocol version', async () => {
const request = {
method: 'initialize',
params: {
protocolVersion: '2024-11-05', // Older version
capabilities: {}
},
id: 2
};
// This will fail until implementation exists
const response = await sendMcpRequest(request);
expect(response).toHaveProperty('result');
expect(response.result).toHaveProperty('protocolVersion');
// Should negotiate to supported version
});
it('should reject invalid protocol version', async () => {
const request = {
method: 'initialize',
params: {
protocolVersion: 'invalid-version',
capabilities: {}
},
id: 3
};
// This will fail until implementation exists
const response = await sendMcpRequest(request);
expect(response).toHaveProperty('error');
expect(response.error).toHaveProperty('code');
expect(response.error).toHaveProperty('message');
});
it('should include server capabilities', async () => {
const request = {
method: 'initialize',
params: {
protocolVersion: '2025-06-18',
capabilities: {}
},
id: 4
};
// This will fail until implementation exists
const response = await sendMcpRequest(request);
expect(response.result.capabilities).toHaveProperty('tools');
expect(response.result.capabilities.tools).toHaveProperty('listChanged', true);
expect(response.result.capabilities).toHaveProperty('logging');
});
});
// Mock function - replace with actual implementation
async function sendMcpRequest(request) {
// This should send a request to the MCP endpoint
// For now, return a mock response that will fail the test
console.log('Sending MCP request:', request);
throw new Error('MCP initialize endpoint not implemented');
}
