001/*
002 * Copyright (C) 2007 The Guava Authors
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package com.google.common.collect.testing;
018
019import com.google.common.annotations.GwtCompatible;
020import com.google.common.collect.testing.SampleElements.Colliders;
021import java.util.List;
022import org.jspecify.annotations.NullMarked;
023
024/**
025 * A generator using sample elements whose hash codes all collide badly.
026 *
027 * @author Kevin Bourrillion
028 */
029@GwtCompatible
030@NullMarked
031public abstract class TestCollidingSetGenerator implements TestSetGenerator<Object> {
032  @Override
033  public SampleElements<Object> samples() {
034    return new Colliders();
035  }
036
037  @Override
038  public Object[] createArray(int length) {
039    return new Object[length];
040  }
041
042  /** Returns the original element list, unchanged. */
043  @Override
044  public List<Object> order(List<Object> insertionOrder) {
045    return insertionOrder;
046  }
047}