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; 021import org.jspecify.annotations.NullMarked; 022import org.jspecify.annotations.Nullable; 023 024/** 025 * Creates sorted sets, containing sample elements, to be tested. 026 * 027 * @author Louis Wasserman 028 */ 029@GwtCompatible 030@NullMarked 031public interface TestSortedSetGenerator<E extends @Nullable Object> extends TestSetGenerator<E> { 032 @Override 033 SortedSet<E> create(Object... elements); 034 035 /** 036 * Returns an element less than the {@link #samples()} and less than {@link 037 * #belowSamplesGreater()}. 038 */ 039 E belowSamplesLesser(); 040 041 /** 042 * Returns an element less than the {@link #samples()} but greater than {@link 043 * #belowSamplesLesser()}. 044 */ 045 E belowSamplesGreater(); 046 047 /** 048 * Returns an element greater than the {@link #samples()} but less than {@link 049 * #aboveSamplesGreater()}. 050 */ 051 E aboveSamplesLesser(); 052 053 /** 054 * Returns an element greater than the {@link #samples()} and greater than {@link 055 * #aboveSamplesLesser()}. 056 */ 057 E aboveSamplesGreater(); 058}