001/* 002 * Copyright (C) 2008 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 java.util.Collections; 021import java.util.List; 022import java.util.SortedSet; 023 024/** 025 * Create string sets for testing collections that are sorted by natural ordering. 026 * 027 * @author Jared Levy 028 */ 029@GwtCompatible 030public abstract class TestStringSortedSetGenerator extends TestStringSetGenerator 031 implements TestSortedSetGenerator<String> { 032 033 @Override 034 public SortedSet<String> create(Object... elements) { 035 return (SortedSet<String>) super.create(elements); 036 } 037 038 @Override 039 protected abstract SortedSet<String> create(String[] elements); 040 041 /** Sorts the elements by their natural ordering. */ 042 @Override 043 public List<String> order(List<String> insertionOrder) { 044 Collections.sort(insertionOrder); 045 return insertionOrder; 046 } 047 048 @Override 049 public String belowSamplesLesser() { 050 return "!! a"; 051 } 052 053 @Override 054 public String belowSamplesGreater() { 055 return "!! b"; 056 } 057 058 @Override 059 public String aboveSamplesLesser() { 060 return "~~ a"; 061 } 062 063 @Override 064 public String aboveSamplesGreater() { 065 return "~~ b"; 066 } 067}