import static java.nio.charset.StandardCharsets.UTF_8;

import com.google.common.collect.ImmutableSet;
import junit.framework.TestCase;

/**
 * Unit tests for {@link SipHashFunction}.
 *
 * @author Kurt Alfred Kluever
 */
public class SipHashFunctionTest extends TestCase {

  // From https://131002.net/siphash/siphash24.c
  // k = 00 01 02 ...
  private static final long K0 = 0x0706050403020100L;

import java.util.Locale;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import junit.framework.TestCase;

/**
 * Tests for ThreadFactoryBuilder.
 *
 * @author Kurt Alfred Kluever
 * @author Martin Buchholz
 */
public class ThreadFactoryBuilderTest extends TestCase {
  private final Runnable monitoredRunnable =
      new Runnable() {
        @Override
        public void run() {

import com.google.common.annotations.J2ktIncompatible;
import javax.annotation.CheckForNull;

/**
 * Represents a {@linkplain System#getProperties() standard system property}.
 *
 * @author Kurt Alfred Kluever
 * @since 15.0
 */
@J2ktIncompatible
@GwtIncompatible // java.lang.System#getProperty
@ElementTypesAreNonnullByDefault
public enum StandardSystemProperty {

  /** Java Runtime Environment version. */

import java.io.Serializable;
import java.nio.ByteBuffer;
import javax.annotation.CheckForNull;

/**
 * {@link HashFunction} implementation of SipHash-c-d.
 *
 * @author Kurt Alfred Kluever
 * @author Jean-Philippe Aumasson
 * @author Daniel J. Bernstein
 */
@Immutable
@ElementTypesAreNonnullByDefault
final class SipHashFunction extends AbstractHashFunction implements Serializable {

import java.util.Locale;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import junit.framework.TestCase;

/**
 * Tests for ThreadFactoryBuilder.
 *
 * @author Kurt Alfred Kluever
 * @author Martin Buchholz
 */
public class ThreadFactoryBuilderTest extends TestCase {
  private final Runnable monitoredRunnable =
      new Runnable() {
        @Override
        public void run() {

import java.util.AbstractList;
import java.util.List;
import java.util.NoSuchElementException;
import junit.framework.TestCase;

/**
 * Tests for {@link EvictingQueue}.
 *
 * @author Kurt Alfred Kluever
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class EvictingQueueTest extends TestCase {

  public void testCreateWithNegativeSize() throws Exception {

import java.io.Serializable;
import java.nio.ByteBuffer;
import javax.annotation.CheckForNull;

/**
 * {@link HashFunction} implementation of SipHash-c-d.
 *
 * @author Kurt Alfred Kluever
 * @author Jean-Philippe Aumasson
 * @author Daniel J. Bernstein
 */
@Immutable
@ElementTypesAreNonnullByDefault
final class SipHashFunction extends AbstractHashFunction implements Serializable {

import java.util.Random;
import junit.framework.TestCase;

/**
 * Unit tests for {@link Crc32c}. Known test values are from RFC 3720, Section B.4.
 *
 * @author Patrick Costello
 * @author Kurt Alfred Kluever
 */
public class Crc32cHashFunctionTest extends TestCase {
  public void testEmpty() {
    assertCrc(0, new byte[0]);
  }

  public void testZeros() {
    // Test 32 byte array of 0x00.

import java.util.Random;
import junit.framework.TestCase;

/**
 * Unit tests for {@link Crc32c}. Known test values are from RFC 3720, Section B.4.
 *
 * @author Patrick Costello
 * @author Kurt Alfred Kluever
 */
public class Crc32cHashFunctionTest extends TestCase {
  public void testEmpty() {
    assertCrc(0, new byte[0]);
  }

  public void testZeros() {
    // Test 32 byte array of 0x00.

import java.util.List;
import java.util.Set;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Unit test for {@link Optional}.
 *
 * @author Kurt Alfred Kluever
 */
@ElementTypesAreNonnullByDefault
@GwtCompatible(emulated = true)
public final class OptionalTest extends TestCase {
  @SuppressWarnings("NullOptional")
  public void testToJavaUtil_static() {