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  import com.google.common.collect.testing.features.CollectionSize;
21  
22  import java.util.Collection;
23  
24  /**
25   * The subject-generator interface accepted by Collection testers, for testing
26   * a Collection at one particular {@link CollectionSize}.
27   *
28   * <p>This interface should not be implemented outside this package;
29   * {@link PerCollectionSizeTestSuiteBuilder} constructs instances of it from
30   * a more general {@link TestCollectionGenerator}.
31   *
32   * @author George van den Driessche
33   */
34  @GwtCompatible
35  public interface OneSizeTestContainerGenerator<T, E>
36      extends TestSubjectGenerator<T>, TestContainerGenerator<T, E> {
37    TestContainerGenerator<T, E> getInnerGenerator();
38  
39    Collection<E> getSampleElements(int howMany);
40  
41    CollectionSize getCollectionSize();
42  }