Testing SSL and authorization (JWT).

For testing SSL, it is important to verify the correct installation of the certificate, encryption of the connection, and the absence of browser or client warnings. This can be done using tools like OpenSSL (openssl s_client -connect host:443), as well as automated tests that verify the connection is indeed secure.

To test JWT authorization, you need to check:

• Correct generation of the token (valid payload, signature).
• Verification of the token on the server (signature validity, expiration, access rights).
• Error handling when the token expires or is invalid.

An example of an automated test in Node.js using the jsonwebtoken library:

const jwt = require('jsonwebtoken');

// Generate token
const token = jwt.sign({ userId: 123 }, 'secretKey', { expiresIn: '1h' });

// Verify token
try {
  const decoded = jwt.verify(token, 'secretKey');
  console.log('Token is valid:', decoded);
} catch (err) {
  console.error('Token verification error:', err.message);
}

In API tests, you can send requests with JWT in the Authorization header and check whether access is granted or denied depending on the token.