* limitations under the License.
 */

package com.google.common.collect.testing;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.SampleElements.Chars;
import java.util.List;
import org.jspecify.annotations.NullMarked;

/**
 * Generates {@code List<Character>} instances for test suites.
 *
 * @author Kevin Bourrillion
 * @author Louis Wasserman
 */

 * limitations under the License.
 */

package com.google.common.collect.testing;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.SampleElements.Unhashables;
import java.util.Collection;
import java.util.List;
import org.jspecify.annotations.NullMarked;

/**
 * Creates collections containing unhashable sample elements, to be tested.
 *

import com.google.common.collect.testing.SampleElements.Ints;
import java.util.List;
import java.util.Set;
import org.jspecify.annotations.NullMarked;

/**
 * Create integer sets for collection tests.
 *
 * @author Gregory Kick
 */
@GwtCompatible
@NullMarked
public abstract class TestIntegerSetGenerator implements TestSetGenerator<Integer> {
  @Override
  public SampleElements<Integer> samples() {
    return new Ints();

    }

    @Override
    public Object[] createValueArray(int length) {
      return new Object[length];
    }

    @Override
    public SampleElements<Entry<TypeToken, Object>> samples() {
      return new SampleElements<>(
          entry(TypeToken.of(Integer.class), 0),
          entry(TypeToken.of(Number.class), 1),
          entry(new TypeToken<ImmutableList<Integer>>() {}, ImmutableList.of(2)),

    suite.addTest(
        MapTestSuiteBuilder.using(
                new TestMapGenerator<String, Integer>() {
                  @Override
                  public SampleElements<Entry<String, Integer>> samples() {
                    return new SampleElements<>(
                        mapEntry("x", 1),
                        mapEntry("xxx", 3),
                        mapEntry("xx", 2),
                        mapEntry("xxxx", 4),

 * @author George van den Driessche
 */
@GwtCompatible
@NullMarked
public abstract class TestStringMapGenerator implements TestMapGenerator<String, String> {

  @Override
  public SampleElements<Entry<String, String>> samples() {
    return new SampleElements<>(
        mapEntry("one", "January"),
        mapEntry("two", "February"),
        mapEntry("three", "March"),
        mapEntry("four", "April"),
        mapEntry("five", "May"));

    suite.addTest(
        MapTestSuiteBuilder.using(
                new TestMapGenerator<String, Integer>() {
                  @Override
                  public SampleElements<Entry<String, Integer>> samples() {
                    return new SampleElements<>(
                        mapEntry("x", 1),
                        mapEntry("xxx", 3),
                        mapEntry("xx", 2),
                        mapEntry("xxxx", 4),

  @AndroidIncompatible // test-suite builders
  static final class ImmutableRangeSetIntegerAsSetGenerator implements TestSetGenerator<Integer> {
    @Override
    public SampleElements<Integer> samples() {
      return new SampleElements<>(1, 4, 3, 2, 5);
    }

    @Override
    public Integer[] createArray(int length) {
      return new Integer[length];
    }

    @Override

    features.addAll(parentBuilder.getFeatures());

    return NavigableSetTestSuiteBuilder.using(
            new TestSetGenerator<E>() {

              @Override
              public SampleElements<E> samples() {
                return delegate.samples();
              }

              @Override
              public E[] createArray(int length) {
                return delegate.createArray(length);

 * limitations under the License.
 */

package com.google.common.collect;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.SampleElements.Colliders;
import java.util.Map;
import org.jspecify.annotations.NullUnmarked;

@GwtCompatible
@NullUnmarked
public class ImmutableMapWithBadHashesMapInterfaceTest