/* * Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.hazelcast.test; import java.util.Arrays; import java.util.HashSet; import java.util.List; import java.util.Set; /** * Collection of convenience methods not suitable for production usage due performance characteristics, but handy for tests. */ public class TestCollectionUtils { /** * Creates a new set containing items passed as arguments. * * @param items * @param <T> * @return a new instance of Set with all items passed as an argument */ public static <T> Set<T> setOf(T... items) { List<T> list = Arrays.asList(items); return new HashSet<T>(list); } public static Set<Integer> setOfValuesBetween(int from, int to) { HashSet<Integer> set = new HashSet<Integer>(); for (int i = from; i < to; i++) { set.add(i); } return set; } }