001/*
002 * Copyright (C) 2008 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.testers;
018
019import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_REMOVE;
020import static com.google.common.collect.testing.features.CollectionSize.ZERO;
021
022import com.google.common.annotations.GwtCompatible;
023import com.google.common.collect.testing.features.CollectionFeature;
024import com.google.common.collect.testing.features.CollectionSize;
025
026/**
027 * A generic JUnit test which tests remove operations on a set. Can't be invoked directly; please
028 * see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
029 *
030 * @author George van den Driessche
031 */
032@GwtCompatible
033public class SetRemoveTester<E> extends AbstractSetTester<E> {
034  @CollectionFeature.Require(SUPPORTS_REMOVE)
035  @CollectionSize.Require(absent = ZERO)
036  public void testRemove_present() {
037    getSet().remove(e0());
038    assertFalse(
039        "After remove(present) a set should not contain the removed element.",
040        getSet().contains(e0()));
041  }
042}