SEO Tools MCP Server

/** * Tests for DataForSeoClient (src/api/client.ts) */ import axios from 'axios'; import { setupApiClient } from '../src/api/client'; // Mock axios jest.mock('axios'); const mockedAxios = axios as jest.Mocked<typeof axios>; describe('DataForSeoClient', () => { const mockHttpClient = { get: jest.fn(), post: jest.fn(), }; beforeEach(() => { jest.clearAllMocks(); mockedAxios.create.mockReturnValue(mockHttpClient as any); mockedAxios.isAxiosError.mockReturnValue(false); }); describe('setupApiClient', () => { it('creates client with correct credentials', () => { const client = setupApiClient('testuser', 'testpass'); expect(mockedAxios.create).toHaveBeenCalledWith({ baseURL: 'https://api.dataforseo.com/v3', auth: { username: 'testuser', password: 'testpass', }, headers: { 'Content-Type': 'application/json', }, }); expect(client.login).toBe('testuser'); expect(client.password).toBe('testpass'); expect(client.baseUrl).toBe('https://api.dataforseo.com/v3'); }); it('returns client with get and post methods', () => { const client = setupApiClient('user', 'pass'); expect(typeof client.get).toBe('function'); expect(typeof client.post).toBe('function'); }); }); describe('client.get', () => { it('returns data on successful GET request', async () => { const mockResponse = { data: { result: 'success' } }; mockHttpClient.get.mockResolvedValue(mockResponse); const client = setupApiClient('user', 'pass'); const result = await client.get('/test/endpoint'); expect(mockHttpClient.get).toHaveBeenCalledWith('/test/endpoint'); expect(result).toEqual({ result: 'success' }); }); it('throws and logs error on failed GET request', async () => { const mockError = new Error('Network error'); mockHttpClient.get.mockRejectedValue(mockError); const consoleSpy = jest.spyOn(console, 'error').mockImplementation(); const client = setupApiClient('user', 'pass'); await expect(client.get('/test/endpoint')).rejects.toThrow('Network error'); expect(consoleSpy).toHaveBeenCalled(); consoleSpy.mockRestore(); }); it('logs axios error details when available', async () => { const axiosError = { response: { data: { error: 'API error message' } }, message: 'Request failed', }; mockHttpClient.get.mockRejectedValue(axiosError); mockedAxios.isAxiosError.mockReturnValue(true); const consoleSpy = jest.spyOn(console, 'error').mockImplementation(); const client = setupApiClient('user', 'pass'); await expect(client.get('/test/endpoint')).rejects.toEqual(axiosError); expect(consoleSpy).toHaveBeenCalledWith( 'DataForSEO API GET error (/test/endpoint):', { error: 'API error message' } ); consoleSpy.mockRestore(); }); }); describe('client.post', () => { it('returns data on successful POST request', async () => { const mockResponse = { data: { id: '123', status: 'created' } }; mockHttpClient.post.mockResolvedValue(mockResponse); const client = setupApiClient('user', 'pass'); const postData = { keyword: 'test' }; const result = await client.post('/test/endpoint', postData); expect(mockHttpClient.post).toHaveBeenCalledWith('/test/endpoint', postData); expect(result).toEqual({ id: '123', status: 'created' }); }); it('throws and logs error on failed POST request', async () => { const mockError = new Error('Network error'); mockHttpClient.post.mockRejectedValue(mockError); const consoleSpy = jest.spyOn(console, 'error').mockImplementation(); const client = setupApiClient('user', 'pass'); await expect(client.post('/test/endpoint', {})).rejects.toThrow('Network error'); expect(consoleSpy).toHaveBeenCalled(); consoleSpy.mockRestore(); }); it('logs axios error details when available', async () => { const axiosError = { response: { data: { error: 'Invalid parameters' } }, message: 'Request failed', }; mockHttpClient.post.mockRejectedValue(axiosError); mockedAxios.isAxiosError.mockReturnValue(true); const consoleSpy = jest.spyOn(console, 'error').mockImplementation(); const client = setupApiClient('user', 'pass'); await expect(client.post('/test/endpoint', {})).rejects.toEqual(axiosError); expect(consoleSpy).toHaveBeenCalledWith( 'DataForSEO API POST error (/test/endpoint):', { error: 'Invalid parameters' } ); consoleSpy.mockRestore(); }); it('logs error message when response data is not available', async () => { const axiosError = { message: 'Connection timeout', }; mockHttpClient.post.mockRejectedValue(axiosError); mockedAxios.isAxiosError.mockReturnValue(true); const consoleSpy = jest.spyOn(console, 'error').mockImplementation(); const client = setupApiClient('user', 'pass'); await expect(client.post('/test/endpoint', {})).rejects.toEqual(axiosError); expect(consoleSpy).toHaveBeenCalledWith( 'DataForSEO API POST error (/test/endpoint):', 'Connection timeout' ); consoleSpy.mockRestore(); }); }); });