1 /* 2 * Copyright (C) 2008 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 17 package com.google.common.collect.testing; 18 19 import com.google.common.annotations.GwtCompatible; 20 21 import java.util.Collections; 22 import java.util.List; 23 import java.util.SortedSet; 24 25 /** 26 * Create string sets for testing collections that are sorted by natural 27 * ordering. 28 * 29 * @author Jared Levy 30 */ 31 @GwtCompatible 32 public abstract class TestStringSortedSetGenerator 33 extends TestStringSetGenerator implements TestSortedSetGenerator<String> { 34 35 @Override create(Object... elements)36 public SortedSet<String> create(Object... elements) { 37 return (SortedSet<String>) super.create(elements); 38 } 39 create(String[] elements)40 @Override protected abstract SortedSet<String> create(String[] elements); 41 42 /** Sorts the elements by their natural ordering. */ order(List<String> insertionOrder)43 @Override public List<String> order(List<String> insertionOrder) { 44 Collections.sort(insertionOrder); 45 return insertionOrder; 46 } 47 48 @Override belowSamplesLesser()49 public String belowSamplesLesser() { 50 return "!! a"; 51 } 52 53 @Override belowSamplesGreater()54 public String belowSamplesGreater() { 55 return "!! b"; 56 } 57 58 @Override aboveSamplesLesser()59 public String aboveSamplesLesser() { 60 return "~~ a"; 61 } 62 63 @Override aboveSamplesGreater()64 public String aboveSamplesGreater() { 65 return "~~ b"; 66 } 67 } 68