import java.util.concurrent.ConcurrentSkipListMap;
import org.jspecify.annotations.NullUnmarked;

/**
 * A microbenchmark that tests the performance of get() and iteration on various map
 * implementations. Forked from {@link SetContainsBenchmark}.
 *
 * @author Nicholaus Shupe
 */
@NullUnmarked
public class MapBenchmark {
  @Param({"Hash", "LinkedHM", "MapMaker1", "Immutable"})
  private Impl impl;

import java.util.concurrent.atomic.AtomicBoolean;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Tests for {@link GcFinalization}.
 *
 * @author Martin Buchholz
 * @author mike nonemacher
 */

@NullUnmarked
public class GcFinalizationTest extends TestCase {

  // ----------------------------------------------------------------

import java.util.Arrays;
import java.util.Random;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

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

import java.util.Map.Entry;
import java.util.NoSuchElementException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@code ImmutableRangeMap}.
 *
 * @author Louis Wasserman
 */
@GwtIncompatible // NavigableMap
@NullUnmarked
public class ImmutableRangeMapTest extends TestCase {
  private static final ImmutableList<Range<Integer>> RANGES;

import java.util.concurrent.TimeUnit;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link JdkFutureAdapters}.
 *
 * @author Sven Mawson
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public class JdkFutureAdaptersTest extends TestCase {
  private static final String DATA1 = "data";

import java.util.Collection;
import java.util.Set;
import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for {@link EndpointPair} and {@link Graph#edges()}. */
@RunWith(JUnit4.class)
@NullUnmarked
public final class EndpointPairTest {
  private static final Integer N0 = 0;
  private static final Integer N1 = 1;

import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Test for {@link WrappingExecutorService}
 *
 * @author Chris Nokleberg
 */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public class WrappingExecutorServiceTest extends TestCase {
  private static final String RESULT_VALUE = "ran";

import java.util.Collection;
import java.util.Set;
import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for {@link EndpointPair} and {@link Graph#edges()}. */
@RunWith(JUnit4.class)
@NullUnmarked
public final class EndpointPairTest {
  private static final Integer N0 = 0;
  private static final Integer N1 = 1;

import com.google.common.collect.ImmutableMap;
import java.math.RoundingMode;
import java.util.Arrays;
import java.util.Collection;
import java.util.Map;
import org.jspecify.annotations.NullUnmarked;

/**
 * Enumerates several algorithms providing equivalent functionality to {@link Quantiles}, for use in
 * {@link QuantilesBenchmark}. These algorithms each calculate either a single quantile or multiple

import java.util.List;
import java.util.Map;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests of {@link TypeResolver}.
 *
 * @author Ben Yu
 */
@AndroidIncompatible // lots of failures, possibly some related to bad equals() implementations?
@NullUnmarked
public class TypeResolverTest extends TestCase {

  public void testWhere_noMapping() {
    Type t = aTypeVariable();