Adyen test mode

npm install @adyen/api-library
pip install Adyen

import { Client, CheckoutAPI } from '@adyen/api-library';

const client = new Client({
  apiKey: process.env.ADYEN_TEST_API_KEY!,
  environment: 'TEST',                  // vs 'LIVE'
});
const checkout = new CheckoutAPI(client);

const paymentResponse = await checkout.payments({
  amount: { currency: 'EUR', value: 1000 },
  paymentMethod: {
    type: 'scheme',
    encryptedCardNumber: 'test_4111111111111111',
    encryptedExpiryMonth: 'test_03',
    encryptedExpiryYear: 'test_2030',
    encryptedSecurityCode: 'test_737',
  },
  reference: 'order-' + uuidv4(),
  merchantAccount: process.env.ADYEN_MERCHANT_ACCOUNT!,
});

expect(paymentResponse.resultCode).toBe('Authorised');

import { hmacValidator } from '@adyen/api-library';
const validator = new hmacValidator();

test('webhook signature valid', () => {
  const notification = { /* notification payload */ };
  const hmacSignature = notification.additionalData.hmacSignature;
  const isValid = validator.validateHMAC(notification, process.env.ADYEN_HMAC_KEY!);
  expect(isValid).toBe(true);
});

test('redelivered notification handled idempotently', async () => {
  const notif = makeTestNotification();
  await handler(notif);
  const before = await db.payments.count();
  await handler(notif);  // re-delivered
  const after = await db.payments.count();
  expect(after).toBe(before);
});

jobs:
  adyen-tests:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5
      - uses: actions/setup-node@v4
      - run: npm ci && npm test
        env:
          ADYEN_TEST_API_KEY: ${{ secrets.ADYEN_TEST_API_KEY }}
          ADYEN_MERCHANT_ACCOUNT: ${{ secrets.ADYEN_TEST_MERCHANT_ACCOUNT }}
          ADYEN_HMAC_KEY: ${{ secrets.ADYEN_TEST_HMAC_KEY }}