MCP Fetch

import { getClient, getTestServerUrl } from '../setup/jest.setup'; import { MCPTestHelper } from '../test-utils/jest-mcp-helper'; describe('GraphQL Tool', () => { let client: MCPTestHelper; let graphqlEndpoint: string; beforeAll(() => { client = getClient(); const testServerUrl = getTestServerUrl(); graphqlEndpoint = `${testServerUrl}/graphql`; }); describe('GraphQL Queries', () => { test('should execute a simple query', async () => { const query = ` query { hello(name: "Test") } `; const result = await client.testGraphQL(graphqlEndpoint, query); expect(result).toBeDefined(); expect(result.data).toBeDefined(); expect(result.data.hello).toBe('Hello Test!'); }); test('should fetch users', async () => { const query = ` query { users { id name email } } `; const result = await client.testGraphQL(graphqlEndpoint, query); expect(result).toBeDefined(); expect(result.data).toBeDefined(); expect(result.data.users).toBeInstanceOf(Array); expect(result.data.users.length).toBeGreaterThan(0); expect(result.data.users[0]).toHaveProperty('id'); expect(result.data.users[0]).toHaveProperty('name'); expect(result.data.users[0]).toHaveProperty('email'); }); test('should fetch a specific user with posts', async () => { const query = ` query GetUser($id: ID!) { user(id: $id) { id name email posts { id title content } } } `; const variables = { id: '1' }; const result = await client.testGraphQL(graphqlEndpoint, query, variables); expect(result).toBeDefined(); expect(result.data).toBeDefined(); expect(result.data.user).toBeDefined(); expect(result.data.user.id).toBe('1'); expect(result.data.user.posts).toBeInstanceOf(Array); }); }); describe('GraphQL Mutations', () => { test('should create a new user', async () => { const mutation = ` mutation CreateUser($input: CreateUserInput!) { createUser(input: $input) { id name email } } `; const variables = { input: { name: 'Test User', email: 'test@example.com' } }; const result = await client.testGraphQL(graphqlEndpoint, mutation, variables); expect(result).toBeDefined(); expect(result.data).toBeDefined(); expect(result.data.createUser).toBeDefined(); expect(result.data.createUser.name).toBe('Test User'); expect(result.data.createUser.email).toBe('test@example.com'); expect(result.data.createUser.id).toBeDefined(); }); }); describe('GraphQL Introspection', () => { test('should list available operations', async () => { const result = await client.testGraphQLIntrospect(graphqlEndpoint, 'list-operations'); expect(result).toBeDefined(); expect(result.success).toBe(true); expect(result.operations).toBeDefined(); expect(result.operations.queries).toContain('users'); expect(result.operations.queries).toContain('user'); expect(result.operations.mutations).toContain('createUser'); }); test('should get type information', async () => { const result = await client.testGraphQLIntrospect(graphqlEndpoint, 'get-type', 'User'); expect(result).toBeDefined(); expect(result.success).toBe(true); expect(result.type).toBeDefined(); expect(result.type.name).toBe('User'); expect(result.type.fields).toBeDefined(); expect(result.type.fields).toBeInstanceOf(Array); expect(result.type.fields.map((f: any) => f.name)).toContain('id'); expect(result.type.fields.map((f: any) => f.name)).toContain('name'); expect(result.type.fields.map((f: any) => f.name)).toContain('email'); expect(result.type.fields.map((f: any) => f.name)).toContain('posts'); }); }); describe('Error Handling', () => { test('should handle invalid queries', async () => { const invalidQuery = ` query { nonExistentField } `; const result = await client.testGraphQL(graphqlEndpoint, invalidQuery); expect(result.errors).toBeDefined(); expect(result.errors.length).toBeGreaterThan(0); }); }); });