How do you test code that uses SSLContext?

Testing code that utilizes SSLContext requires a proper setup to ensure your SSL configurations are correct and functioning as expected. A typical approach includes creating a test SSL context, using a self-signed certificate, or running your application in a local environment with valid SSL certificates.

In this example, we will demonstrate how to create an SSLContext in Java, configure it for use with HTTPS connections, and then perform basic tests to ensure it works.

        // Example Java Code to create and use SSLContext
        import javax.net.ssl.SSLContext;
        import javax.net.ssl.TrustManagerFactory;
        import java.security.KeyStore;

        public class SSLContextExample {
            public static void main(String[] args) throws Exception {
                // Load the KeyStore that contains the self-signed certificates
                KeyStore keyStore = KeyStore.getInstance("JKS");
                keyStore.load(SSLContextExample.class.getResourceAsStream("/keystore.jks"), "password".toCharArray());

                // Create a TrustManager that trusts the certificates in the KeyStore
                TrustManagerFactory trustFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
                trustFactory.init(keyStore);

                // Create and initialize the SSLContext
                SSLContext sslContext = SSLContext.getInstance("TLS");
                sslContext.init(null, trustFactory.getTrustManagers(), new java.security.SecureRandom());

                // Use the SSLContext for HTTPS connections
                // ...
            }
        }