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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.testers;
18  
19  import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_REMOVE;
20  import static com.google.common.collect.testing.features.CollectionSize.ZERO;
21  
22  import com.google.common.annotations.GwtCompatible;
23  import com.google.common.collect.testing.features.CollectionFeature;
24  import com.google.common.collect.testing.features.CollectionSize;
25  
26  /**
27   * A generic JUnit test which tests remove operations on a set. Can't be
28   * invoked directly; please see
29   * {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
30   *
31   * @author George van den Driessche
32   */
33  @GwtCompatible
34  public class SetRemoveTester<E> extends AbstractSetTester<E> {
35    @CollectionFeature.Require(SUPPORTS_REMOVE)
36    @CollectionSize.Require(absent = ZERO)
37    public void testRemove_present() {
38      getSet().remove(e0());
39      assertFalse(
40          "After remove(present) a set should not contain the removed element.",
41          getSet().contains(e0()));
42    }
43  }