TestEnumSetGenerator.java revision 7dd252788645e940eada959bdde927426e2531c9
1/* 2 * Copyright (C) 2007 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.google.common.collect.testing; 18 19import com.google.common.annotations.GwtCompatible; 20import com.google.common.collect.testing.SampleElements.Enums; 21 22import java.util.Collections; 23import java.util.List; 24import java.util.Set; 25 26/** 27 * An abstract TestSetGenerator for generating sets containing enum values. 28 * 29 * <p>This class is GWT compatible. 30 * 31 * @author Kevin Bourrillion 32 */ 33@GwtCompatible 34public abstract class TestEnumSetGenerator implements TestSetGenerator<AnEnum> { 35 @Override 36 public SampleElements<AnEnum> samples() { 37 return new Enums(); 38 } 39 40 @Override 41 public Set<AnEnum> create(Object... elements) { 42 AnEnum[] array = new AnEnum[elements.length]; 43 int i = 0; 44 for (Object e : elements) { 45 array[i++] = (AnEnum) e; 46 } 47 return create(array); 48 } 49 50 protected abstract Set<AnEnum> create(AnEnum[] elements); 51 52 @Override 53 public AnEnum[] createArray(int length) { 54 return new AnEnum[length]; 55 } 56 57 /** 58 * Sorts the enums according to their natural ordering. 59 */ 60 @Override 61 public List<AnEnum> order(List<AnEnum> insertionOrder) { 62 Collections.sort(insertionOrder); 63 return insertionOrder; 64 } 65} 66