easygraphql-tester

const EasyGraphQLTester = require('easygraphql-tester'); const fs = require('fs'); const path = require('path'); // Create a dummy schema file for demonstration const schemaPath = path.join(__dirname, 'schema.gql'); if (!fs.existsSync(path.dirname(schemaPath))) { fs.mkdirSync(path.dirname(schemaPath)); } fs.writeFileSync(schemaPath, ` type User { id: ID! name: String! email: String } type Query { getUser(id: ID!): User listUsers: [User] } type Mutation { createUser(name: String!, email: String): User } `); const userSchema = fs.readFileSync(schemaPath, 'utf8'); const resolvers = { Query: { getUser: (_, { id }) => ({ id, name: `User ${id}`, email: `user${id}@example.com`, }), listUsers: () => [ { id: '1', name: 'Alice', email: 'alice@example.com' }, { id: '2', name: 'Bob', email: 'bob@example.com' }, ], }, Mutation: { createUser: (_, { name, email }) => ({ id: Math.random().toString(36).substring(7), name, email, }), }, }; const tester = new EasyGraphQLTester(userSchema, resolvers); async function runTests() { try { // Test a valid query const query = ` query GetUser($id: ID!) { getUser(id: $id) { id name } } `; const variables = { id: '1' }; const result = await tester.graphql(query, undefined, undefined, variables); console.log('Valid Query Result:', JSON.stringify(result, null, 2)); // Expected: { "data": { "getUser": { "id": "1", "name": "User 1" } } } // Test a valid mutation const mutation = ` mutation CreateNewUser($name: String!, $email: String) { createUser(name: $name, email: $email) { id name email } } `; const mutationVariables = { name: 'Charlie', email: 'charlie@example.com' }; const mutationResult = await tester.graphql(mutation, undefined, undefined, mutationVariables); console.log('Valid Mutation Result:', JSON.stringify(mutationResult, null, 2)); // Expected: { "data": { "createUser": { "id": "...", "name": "Charlie", "email": "charlie@example.com" } } } } catch (error) { console.error('Test Failed:', error.message); } } runTests();