DeepSource MCP Server

/** * @fileoverview Tests for configuration management */ import { vi } from 'vitest'; // Mock logger const mockLogger = { debug: vi.fn(), }; vi.mock('../../utils/logging/logger.js', () => ({ createLogger: vi.fn(() => mockLogger), })); // Import after mocking const { getConfig, hasApiKey, getApiKey } = await import('../../config/index.js'); describe('Configuration Management', () => { // Store original env vars const originalEnv = process.env; beforeEach(() => { vi.clearAllMocks(); // Reset env to a clean state process.env = { ...originalEnv }; }); afterEach(() => { // Restore original env process.env = originalEnv; }); describe('getConfig', () => { it('should return default configuration with provided API key', () => { process.env.DEEPSOURCE_API_KEY = 'test-api-key'; const config = getConfig(); expect(config).toEqual({ apiKey: 'test-api-key', apiBaseUrl: 'https://api.deepsource.io/graphql/', requestTimeout: 30000, logLevel: 'DEBUG', }); expect(mockLogger.debug).toHaveBeenCalledWith('Loading configuration', { hasApiKey: true, apiBaseUrl: 'https://api.deepsource.io/graphql/', requestTimeout: 30000, logLevel: 'DEBUG', }); }); it('should use environment variables when provided', () => { process.env.DEEPSOURCE_API_KEY = 'custom-api-key'; process.env.DEEPSOURCE_API_BASE_URL = 'https://custom.deepsource.io/graphql/'; process.env.DEEPSOURCE_REQUEST_TIMEOUT = '60000'; process.env.LOG_FILE = '/tmp/deepsource.log'; process.env.LOG_LEVEL = 'INFO'; const config = getConfig(); expect(config).toEqual({ apiKey: 'custom-api-key', apiBaseUrl: 'https://custom.deepsource.io/graphql/', requestTimeout: 60000, logFile: '/tmp/deepsource.log', logLevel: 'INFO', }); }); it('should throw error when API key is not set', () => { delete process.env.DEEPSOURCE_API_KEY; expect(() => getConfig()).toThrow( 'Configuration error: DeepSource API key is required but not configured' ); }); it('should throw error when request timeout is negative', () => { process.env.DEEPSOURCE_API_KEY = 'test-api-key'; process.env.DEEPSOURCE_REQUEST_TIMEOUT = '-1000'; expect(() => getConfig()).toThrow('Request timeout must be a positive number'); }); it('should allow zero timeout (edge case - not validated due to falsy check)', () => { process.env.DEEPSOURCE_API_KEY = 'test-api-key'; process.env.DEEPSOURCE_REQUEST_TIMEOUT = '0'; const config = getConfig(); // 0 passes through but isn't validated because 0 is falsy expect(config.requestTimeout).toBe(0); }); it('should allow NaN timeout (edge case - not validated due to falsy check)', () => { process.env.DEEPSOURCE_API_KEY = 'test-api-key'; process.env.DEEPSOURCE_REQUEST_TIMEOUT = 'not-a-number'; const config = getConfig(); // NaN passes through but isn't validated because NaN is falsy expect(Number.isNaN(config.requestTimeout)).toBe(true); }); it('should handle empty string values as strings not undefined', () => { process.env.DEEPSOURCE_API_KEY = 'test-api-key'; process.env.DEEPSOURCE_API_BASE_URL = ''; const config = getConfig(); // Empty strings are falsy, so the default value is used expect(config.apiBaseUrl).toBe('https://api.deepsource.io/graphql/'); }); }); describe('hasApiKey', () => { it('should return true when API key is set', () => { process.env.DEEPSOURCE_API_KEY = 'test-api-key'; expect(hasApiKey()).toBe(true); }); it('should return false when API key is not set', () => { delete process.env.DEEPSOURCE_API_KEY; expect(hasApiKey()).toBe(false); }); it('should return true for empty string API key', () => { process.env.DEEPSOURCE_API_KEY = ''; // Boolean('') is false, so this should return false expect(hasApiKey()).toBe(false); }); it('should return true for whitespace API key', () => { process.env.DEEPSOURCE_API_KEY = ' '; // Boolean(' ') is true, so this should return true expect(hasApiKey()).toBe(true); }); }); describe('getApiKey', () => { it('should return the API key when configured', () => { process.env.DEEPSOURCE_API_KEY = 'test-api-key-123'; const apiKey = getApiKey(); expect(apiKey).toBe('test-api-key-123'); }); it('should throw error when API key is not set', () => { delete process.env.DEEPSOURCE_API_KEY; expect(() => getApiKey()).toThrow( 'Configuration error: DeepSource API key is required but not configured' ); }); it('should return API key even if it contains special characters', () => { process.env.DEEPSOURCE_API_KEY = 'key-with-special-chars!@#$%^&*()'; const apiKey = getApiKey(); expect(apiKey).toBe('key-with-special-chars!@#$%^&*()'); }); }); describe('Integration tests', () => { it('should work correctly with partial environment configuration', () => { process.env.DEEPSOURCE_API_KEY = 'integration-key'; process.env.LOG_LEVEL = 'ERROR'; // Leave other values to use defaults const config = getConfig(); expect(config).toEqual({ apiKey: 'integration-key', apiBaseUrl: 'https://api.deepsource.io/graphql/', requestTimeout: 30000, logLevel: 'ERROR', }); }); it('should handle all environment variables being set', () => { process.env.DEEPSOURCE_API_KEY = 'full-config-key'; process.env.DEEPSOURCE_API_BASE_URL = 'https://staging.deepsource.io/graphql/'; process.env.DEEPSOURCE_REQUEST_TIMEOUT = '45000'; process.env.LOG_FILE = '/var/log/deepsource.log'; process.env.LOG_LEVEL = 'WARN'; const config = getConfig(); expect(config).toEqual({ apiKey: 'full-config-key', apiBaseUrl: 'https://staging.deepsource.io/graphql/', requestTimeout: 45000, logFile: '/var/log/deepsource.log', logLevel: 'WARN', }); }); }); });