import { TbankCrypto } from './tbank.crypto';

describe('TbankCrypto', () => {
  it('round-trips a token and rejects a malformed key', () => {
    const crypto = TbankCrypto.fromBase64(
      'MDEyMzQ1Njc4OWFiY2RlZjAxMjM0NTY3ODlhYmNkZWY=',
    );
    const encrypted = crypto.encrypt('secret-token');
    const replacement = crypto.encrypt('secret-token');

    expect(encrypted).not.toContain('secret-token');
    expect(replacement).not.toBe(encrypted);
    expect(crypto.decrypt(encrypted)).toBe('secret-token');
    expect(crypto.decrypt(replacement)).toBe('secret-token');
    expect(() => TbankCrypto.fromBase64('invalid')).toThrow(
      'Invalid token encryption key',
    );
  });
});