DeepSource MCP Server

/** * @vitest-environment node */ import nock from 'nock'; import { expect } from 'vitest'; import { DeepSourceClient } from '../deepsource.js'; import { ClassifiedError, ErrorCategory } from '../utils/errors.js'; describe('DeepSourceClient', () => { // Test variables const API_KEY = 'test-api-key'; let client: DeepSourceClient; // Setup client and nock interceptors beforeEach(() => { client = new DeepSourceClient(API_KEY); nock.disableNetConnect(); }); // Clean up after each test afterEach(() => { nock.cleanAll(); nock.enableNetConnect(); }); describe('Error handling', () => { describe('HTTP Status Error Handling', () => { // Test server errors (500+) it('should handle server errors (500+) correctly', async () => { nock('https://api.deepsource.io') .post('/graphql/') .reply(500, { message: 'Internal Server Error' }); try { await client.listProjects(); expect(true).toBe(false); // This will fail if the code reaches here } catch (error) { expect(error).toBeInstanceOf(Error); const classifiedError = error as ClassifiedError; expect(classifiedError.category).toBe(ErrorCategory.SERVER); expect(classifiedError.message).toContain('Server error (500)'); expect(classifiedError.originalError).toBeDefined(); } }); // Test 404 Not Found errors it('should handle 404 not found errors correctly', async () => { nock('https://api.deepsource.io').post('/graphql/').reply(404, { message: 'Not Found' }); try { await client.listProjects(); expect(true).toBe(false); // This will fail if the code reaches here } catch (error) { expect(error).toBeInstanceOf(Error); const classifiedError = error as ClassifiedError; expect(classifiedError.category).toBe(ErrorCategory.NOT_FOUND); expect(classifiedError.message).toContain('Not found (404)'); expect(classifiedError.originalError).toBeDefined(); } }); // Test other 4xx client errors it('should handle other 4xx client errors correctly', async () => { nock('https://api.deepsource.io') .post('/graphql/') .reply(400, { message: 'Bad Request' }, { 'Content-Type': 'application/json' }); try { await client.listProjects(); expect(true).toBe(false); // This will fail if the code reaches here } catch (error) { expect(error).toBeInstanceOf(Error); const classifiedError = error as ClassifiedError; expect(classifiedError.category).toBe(ErrorCategory.CLIENT); expect(classifiedError.message).toContain('Client error (400)'); expect(classifiedError.originalError).toBeDefined(); } }); // Test 4xx status without statusText it('should handle 4xx status without statusText correctly', async () => { nock('https://api.deepsource.io').post('/graphql/').reply(400, {}); try { await client.listProjects(); expect(true).toBe(false); // This will fail if the code reaches here } catch (error) { expect(error).toBeInstanceOf(Error); const classifiedError = error as ClassifiedError; expect(classifiedError.category).toBe(ErrorCategory.CLIENT); // Accept either "Bad Request" or "Bad request" since the error message can vary expect(classifiedError.message.toLowerCase()).toContain( 'client error (400): bad request' ); expect(classifiedError.originalError).toBeDefined(); } }); }); describe('Generic Error Handling', () => { it('should handle standard Error objects', async () => { // Mock Axios to throw a standard Error nock('https://api.deepsource.io') .post('/graphql/') .replyWithError(new Error('Test generic error')); await expect(client.listProjects()).rejects.toThrow( 'DeepSource API error: Test generic error' ); }); it('should handle string error messages', async () => { // Mock Axios to throw a string error message nock('https://api.deepsource.io').post('/graphql/').replyWithError('Not an Error object'); await expect(client.listProjects()).rejects.toThrow( 'DeepSource API error: Not an Error object' ); }); }); }); });