import java.io.ByteArrayInputStream;
import java.io.FilterReader;
import java.io.IOException;
import java.io.InputStreamReader;
import org.jspecify.annotations.NullUnmarked;

/**
 * @author Colin Decker
 */
@NullUnmarked
public class TestReader extends FilterReader {

  private final TestInputStream in;

  public TestReader(TestOption... options) throws IOException {

        try {
            int expectedKeyLength = getKeyLength();
            byte[] encKey = getEncryptionKey();
            byte[] decKey = getDecryptionKey();

            try {
                boolean valid =
                        encKey != null && encKey.length == expectedKeyLength && decKey != null && decKey.length == expectedKeyLength;
                return valid;
            } finally {

 * representation will be hard to change. Instead, use <a
 * href="http://errorprone.info/bugpattern/RestrictedApi">RestrictedApiChecker</a>, which enforces
 * fine-grained visibility policies.
 *
 * @author Johannes Henkel
 */
@GwtCompatible
public @interface VisibleForTesting {

import java.io.IOException;
import java.io.OutputStream;
import org.jspecify.annotations.NullUnmarked;

/**
 * A byte sink for testing that has configurable behavior.
 *
 * @author Colin Decker
 */
@NullUnmarked
public class TestByteSink extends ByteSink implements TestStreamSupplier {

  private final ByteArrayOutputStream bytes = new ByteArrayOutputStream();
  private final ImmutableSet<TestOption> options;

import java.io.IOException;
import java.io.InputStream;
import java.util.Random;
import org.jspecify.annotations.NullUnmarked;

/**
 * A byte source for testing that has configurable behavior.
 *
 * @author Colin Decker
 */
@NullUnmarked
public final class TestByteSource extends ByteSource implements TestStreamSupplier {

  private final byte[] bytes;
  private final ImmutableSet<TestOption> options;

import java.io.IOException;
import java.io.InputStream;
import java.util.Random;
import org.jspecify.annotations.NullUnmarked;

/**
 * A byte source for testing that has configurable behavior.
 *
 * @author Colin Decker
 */
@NullUnmarked
public final class TestByteSource extends ByteSource implements TestStreamSupplier {

  private final byte[] bytes;
  private final ImmutableSet<TestOption> options;

import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import org.jspecify.annotations.NullUnmarked;

/**
 * A char sink for testing that has configurable behavior.
 *
 * @author Colin Decker
 */
@NullUnmarked
public class TestCharSink extends CharSink implements TestStreamSupplier {

  private final TestByteSink byteSink;

  public TestCharSink(TestOption... options) {

        // Given
        byte[] encKey = new byte[16];
        byte[] decKey = new byte[16];
        new SecureRandom().nextBytes(encKey);
        new SecureRandom().nextBytes(decKey);

        // When using try-with-resources
        assertDoesNotThrow(() -> {
            try (Smb2EncryptionContext context = new Smb2EncryptionContext(1, DialectVersion.SMB311, encKey, decKey)) {
                assertNotNull(context, "Context should be created");

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.Multimap;

/**
 * Helper methods/assertions for use with {@code com.google.common.collect} types.
 *
 * @author Colin Decker
 */
@GwtCompatible
final class GoogleHelpers {

  private GoogleHelpers() {}

  static void assertEmpty(Multimap<?, ?> multimap) {
    if (!multimap.isEmpty()) {

import com.google.common.annotations.J2ktIncompatible;

/**
 * Modes for opening a file for writing. The default when mode when none is specified is to truncate
 * the file before writing.
 *
 * @author Colin Decker
 */
@J2ktIncompatible
@GwtIncompatible
public enum FileWriteMode {
  /** Specifies that writes to the opened file should append to the end of the file. */
  APPEND