iyzico/tests/setup.ts

/**
 * Test setup and utilities
 */

import { config } from 'dotenv';
import { resolve, dirname } from 'path';
import { fileURLToPath } from 'url';
import { IyzicoClient } from '../src/client';

// Get the directory of this file (for ESM compatibility)
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

// Load environment variables from .env file
// Resolve path relative to project root (two levels up from tests/setup.ts)
const envPath = resolve(__dirname, '..', '.env');
config({ path: envPath });

/**
 * Creates an İyzico client for testing using environment variables
 * @returns Configured IyzicoClient instance
 */
export function createTestClient(): IyzicoClient {
  const apiKey = process.env.IYZICO_API_KEY;
  const secretKey = process.env.IYZICO_API_SECRET;
  const baseUrl = process.env.IYZICO_BASE_URL || 'https://sandbox-api.iyzipay.com';

  if (!apiKey) {
    throw new Error('IYZICO_API_KEY environment variable is required for tests');
  }
  if (!secretKey) {
    throw new Error('IYZICO_API_SECRET environment variable is required for tests');
  }

  // Enable retry on rate limit for tests
  const retryOnRateLimit = process.env.IYZICO_RETRY_ON_RATE_LIMIT !== 'false';
  const maxRetries = Number.parseInt(process.env.IYZICO_MAX_RETRIES || '3', 10);
  const retryDelay = Number.parseInt(process.env.IYZICO_RETRY_DELAY_MS || '10000', 10);

  return new IyzicoClient({
    apiKey,
    secretKey,
    baseUrl,
    locale: 'tr',
    retryOnRateLimit,
    maxRetries,
    retryDelay,
  });
}

/**
 * Asserts that a response has a success status
 */
export function assertSuccessResponse(response: { status: string }): void {
  if (response.status !== 'success') {
    throw new Error(`Expected success status, got: ${response.status}`);
  }
}

/**
 * Asserts that a response has a failure status
 */
export function assertFailureResponse(response: { status: string }): void {
  if (response.status !== 'failure') {
    throw new Error(`Expected failure status, got: ${response.status}`);
  }
}

/**
 * Delay utility to prevent rate limiting
 * Adds a small delay between test requests
 */
export function delay(ms: number): Promise<void> {
  return new Promise((resolve) => setTimeout(resolve, ms));
}

/**
 * Default delay between API calls to avoid rate limiting
 * Can be overridden via IYZICO_TEST_DELAY_MS environment variable
 */
export const DEFAULT_TEST_DELAY_MS = Number.parseInt(
  process.env.IYZICO_TEST_DELAY_MS || '200',
  10
);