1 /*
2  * Copyright (C) 2013 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 package com.google.common.collect.testing;
17 
18 import com.google.common.annotations.GwtCompatible;
19 
20 import java.util.SortedSet;
21 
22 /**
23  * Creates sorted sets, containing sample elements, to be tested.
24  *
25  * @author Louis Wasserman
26  */
27 @GwtCompatible
28 public interface TestSortedSetGenerator<E> extends TestSetGenerator<E> {
29   @Override
create(Object... elements)30   SortedSet<E> create(Object... elements);
31 
32   /**
33    * Returns an element less than the {@link #samples()} and less than
34    * {@link #belowSamplesGreater()}.
35    */
belowSamplesLesser()36   E belowSamplesLesser();
37 
38   /**
39    * Returns an element less than the {@link #samples()} but greater than
40    * {@link #belowSamplesLesser()}.
41    */
belowSamplesGreater()42   E belowSamplesGreater();
43 
44   /**
45    * Returns an element greater than the {@link #samples()} but less than
46    * {@link #aboveSamplesGreater()}.
47    */
aboveSamplesLesser()48   E aboveSamplesLesser();
49 
50   /**
51    * Returns an element greater than the {@link #samples()} and greater than
52    * {@link #aboveSamplesLesser()}.
53    */
aboveSamplesGreater()54   E aboveSamplesGreater();
55 }
56