assertNotNull(cryptographer);

        String plainText = "Hello, World!";
        String encrypted = cryptographer.encrypt(plainText);
        assertNotNull(encrypted);
        assertFalse(plainText.equals(encrypted));

        String decrypted = cryptographer.decrypt(encrypted);
        assertEquals(plainText, decrypted);
    }

    @Test

        assertEquals(expect, ParameterUtil.encrypt(value));

        value = "";
        expect = "";
        assertEquals(expect, ParameterUtil.encrypt(value));

        value = "\n";
        expect = "";
        assertEquals(expect, ParameterUtil.encrypt(value));

        value = "=";
        expect = "unknown.1=";
        assertEquals(expect, ParameterUtil.encrypt(value));

        value = "=1\n=";

            @Override
            public String encrypt(String plainText) {
                return "encrypted:" + plainText;
            }

            @Override
            public String decrypt(String cryptedText) {
                return cryptedText.startsWith("encrypted:") ? cryptedText.substring("encrypted:".length()) : cryptedText;
            }
        };

  ) {
    enum class Type {
      Handshake,
      Plaintext,
      Encrypted,
      Setup,
      Unknown,
    }

    val type: Type
      get() =
        when {
          message == "adding as trusted certificates" -> Type.Setup
          message == "Raw read" || message == "Raw write" -> Type.Encrypted
          message == "Plaintext before ENCRYPTION" || message == "Plaintext after DECRYPTION" -> Type.Plaintext

        Set<String> roleSet;
        boolean encrypted;
        String value;

        encrypted = false;
        value = "";
        roleSet = decodedRoleList(roleQueryHelperImpl, value, encrypted);
        assertEquals(0, roleSet.size());

        encrypted = false;
        value = "role1";
        roleSet = decodedRoleList(roleQueryHelperImpl, value, encrypted);
        assertEquals(0, roleSet.size());

├── collection/  # Enhanced collections (LruHashMap, CaseInsensitiveMap)
├── concurrent/  # Concurrency utilities
├── convert/     # Type conversion (*ConversionUtil)
├── crypto/      # Cipher & encryption (CachedCipher)
├── exception/   # Runtime exception wrappers
├── io/          # I/O & resource utilities
├── jar/         # JAR file utilities
├── lang/        # Reflection & language utilities

          // Consuming server Finished handshake message
          // Produced ClientHello handshake message
          //
          // Raw write
          // Raw read
          // Plaintext before ENCRYPTION
          // Plaintext after DECRYPTION
          val message = record.message
          val parameters = record.parameters

import okhttp3.Request
import okhttp3.tls.HandshakeCertificates
import okhttp3.tls.decodeCertificatePem
import org.junit.jupiter.api.Tag
import org.junit.jupiter.api.Test

/**
 * Test for new Let's Encrypt Root Certificate.
 */
@Tag("Remote")
class LetsEncryptClientTest {
  @Test fun get() {
    // These tests wont actually run before Android 8.0 as per
    // https://github.com/mannodermaus/android-junit5

        .toSet()

    // It's safe to assume all platforms will have a major Internet certificate issuer.
    val majorIssuers =
      listOf(
        "DigiCert",
        "Let's Encrypt",
        "ISRG", // Internet Security Research Group (Let's Encrypt parent)
        "GlobalSign",
        "Comodo",
        "Sectigo",
        "GeoTrust",
        "Entrust",
      )
    assertThat(names).matchesPredicate { strings ->

import com.google.common.collect.Table;
import com.google.common.testing.NullPointerTester;
import java.security.Key;
import java.util.Arrays;
import javax.crypto.Mac;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;
import sun.security.jca.ProviderList;