001/* 002 * Copyright (C) 2013 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.SortedSet; 021 022/** 023 * Creates sorted sets, containing sample elements, to be tested. 024 * 025 * @author Louis Wasserman 026 */ 027@GwtCompatible 028public interface TestSortedSetGenerator<E> extends TestSetGenerator<E> { 029 @Override 030 SortedSet<E> create(Object... elements); 031 032 /** 033 * Returns an element less than the {@link #samples()} and less than {@link 034 * #belowSamplesGreater()}. 035 */ 036 E belowSamplesLesser(); 037 038 /** 039 * Returns an element less than the {@link #samples()} but greater than {@link 040 * #belowSamplesLesser()}. 041 */ 042 E belowSamplesGreater(); 043 044 /** 045 * Returns an element greater than the {@link #samples()} but less than {@link 046 * #aboveSamplesGreater()}. 047 */ 048 E aboveSamplesLesser(); 049 050 /** 051 * Returns an element greater than the {@link #samples()} and greater than {@link 052 * #aboveSamplesLesser()}. 053 */ 054 E aboveSamplesGreater(); 055}