import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * Unit tests for {@link Sets#union}, {@link Sets#intersection} and {@link Sets#difference}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class SetOperationsTest extends TestCase {
  @J2ktIncompatible
  @GwtIncompatible // suite
  public static Test suite() {

import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;

import java.lang.reflect.Array;
import java.util.List;

import org.junit.Test;

/**
 * @author higa
 *
 */
public class ArrayUtilTest {

    /**
     * @throws Exception
     */
    @Test
    public void testAsArray() throws Exception {

import java.lang.reflect.WildcardType;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import org.junit.Test;

/**
 * @author koichik
 */
public class GenericsUtilTest {

    /**
     * @throws Exception
     */
    @Test
    public void testClass() throws Exception {

import junit.framework.TestSuite;

/**
 * Generates a test suite covering the {@link Set} implementations in the {@link java.util} package.
 * Can be subclassed to specify tests that should be suppressed.
 *
 * @author Kevin Bourrillion
 */
@GwtIncompatible
public class TestsForSetsInJavaUtil {
  public static Test suite() {
    return new TestsForSetsInJavaUtil().allTests();
  }

  public Test allTests() {

import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Queue;
import java.util.Set;

/**
 * Utilities for collecting and validating tester requirements from annotations.
 *
 * @author George van den Driessche
 */
@GwtIncompatible
public final class FeatureUtil {
  /** A cache of annotated objects (typically a Class or Method) to its set of annotations. */

import com.google.common.annotations.J2ktIncompatible;
import com.google.common.testing.NullPointerTester;
import junit.framework.TestCase;

/**
 * Unit test for {@link Strings}.
 *
 * @author Kevin Bourrillion
 */
@ElementTypesAreNonnullByDefault
@GwtCompatible(emulated = true)
public class StringsTest extends TestCase {
  public void testNullToEmpty() {
    assertEquals("", Strings.nullToEmpty(null));

import com.google.common.primitives.Ints;
import com.google.common.testing.NullPointerTester;
import java.util.List;
import junit.framework.TestCase;

/**
 * Unit test for {@link Throwables}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible(emulated = true)
@SuppressWarnings("deprecation") // tests of numerous deprecated methods
public class ThrowablesTest extends TestCase {
  public void testThrowIfUnchecked_unchecked() {

import com.google.common.collect.Iterables;
import com.google.common.primitives.Doubles;
import java.math.BigInteger;
import java.math.RoundingMode;

/**
 * Exhaustive input sets for every integral type.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
public class MathTesting {
  static final ImmutableSet<RoundingMode> ALL_ROUNDING_MODES =
      ImmutableSet.copyOf(RoundingMode.values());

import java.io.Closeable;
import java.io.IOException;
import java.util.List;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link Closer}.
 *
 * @author Colin Decker
 */
public class CloserTest extends TestCase {

  private TestSuppressor suppressor;

  @Override
  protected void setUp() throws Exception {
    suppressor = new TestSuppressor();
  }

 * on such a set can be performed efficiently, but others (such as {@link Set#hashCode} or {@link
 * Collections#frequency}) can cause major performance problems.
 *
 * @author Gregory Kick
 * @since 10.0
 */
@GwtCompatible(emulated = true)
@SuppressWarnings("rawtypes") // allow ungenerified Comparable types
@ElementTypesAreNonnullByDefault