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;
022
023/**
024 * A generator using sample elements whose hash codes all collide badly.
025 *
026 * @author Kevin Bourrillion
027 */
028@GwtCompatible
029@ElementTypesAreNonnullByDefault
030public abstract class TestCollidingSetGenerator implements TestSetGenerator<Object> {
031  @Override
032  public SampleElements<Object> samples() {
033    return new Colliders();
034  }
035
036  @Override
037  public Object[] createArray(int length) {
038    return new Object[length];
039  }
040
041  /** Returns the original element list, unchanged. */
042  @Override
043  public List<Object> order(List<Object> insertionOrder) {
044    return insertionOrder;
045  }
046}