import org.jspecify.annotations.NullMarked;

/**
 * A generator using sample elements whose hash codes all collide badly.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked
public abstract class TestCollidingSetGenerator implements TestSetGenerator<Object> {
  @Override
  public SampleElements<Object> samples() {
    return new Colliders();
  }

  @Override
  public Object[] createArray(int length) {

import com.google.common.collect.ImmutableSortedSet;
import com.google.common.collect.Lists;
import com.google.common.collect.Ordering;
import com.google.common.collect.Range;
import com.google.common.collect.testing.TestCollidingSetGenerator;
import com.google.common.collect.testing.TestIntegerSortedSetGenerator;
import com.google.common.collect.testing.TestSetGenerator;
import com.google.common.collect.testing.TestStringListGenerator;

import com.google.common.collect.ImmutableSortedSet;
import com.google.common.collect.Lists;
import com.google.common.collect.Ordering;
import com.google.common.collect.Range;
import com.google.common.collect.testing.TestCollidingSetGenerator;
import com.google.common.collect.testing.TestIntegerSortedSetGenerator;
import com.google.common.collect.testing.TestSetGenerator;
import com.google.common.collect.testing.TestStringListGenerator;

        .suppressing(suppressForAbstractSet())
        .createTestSuite();
  }

  public Test testsForBadlyCollidingHashSet() {
    return SetTestSuiteBuilder.using(
            new TestCollidingSetGenerator() {
              @Override
              public Set<Object> create(Object... elements) {
                return new HashSet<>(MinimalCollection.of(elements));
              }
            })

        .suppressing(suppressForAbstractSet())
        .createTestSuite();
  }

  public Test testsForBadlyCollidingHashSet() {
    return SetTestSuiteBuilder.using(
            new TestCollidingSetGenerator() {
              @Override
              public Set<Object> create(Object... elements) {
                return new HashSet<>(MinimalCollection.of(elements));
              }
            })