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 /*
  * Copyright (C) 2008 The Guava Authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.common.collect.testing.testers;
import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_REMOVE;
import static com.google.common.collect.testing.features.CollectionSize.ONE;
import static com.google.common.collect.testing.features.CollectionSize.ZERO;
A generic JUnit test which tests remove(Object) operations on a list. Can't be invoked directly; please see com.google.common.collect.testing.ListTestSuiteBuilder.

This class is GWT compatible.

Author(s):
George van den Driessche
public class ListRemoveTester<E> extends AbstractListTester<E> {
  @CollectionSize.Require(absent = {})
  public void testRemove_duplicate() {
    ArrayWithDuplicate<E> arrayAndDuplicate = createArrayWithDuplicateElement();
     = getSubjectGenerator().create(arrayAndDuplicate.elements);
    E duplicate = arrayAndDuplicate.duplicate;
    int firstIndex = getList().indexOf(duplicate);
    int initialSize = getList().size();
    assertTrue("remove(present) should return true",
        getList().remove(duplicate));
    assertTrue("After remove(duplicate), a list should still contain "
        + "the duplicate element"getList().contains(duplicate));
    assertFalse("remove(duplicate) should remove the first instance of the "
        + "duplicate element in the list",
        firstIndex == getList().indexOf(duplicate));
    assertEquals("remove(present) should decrease the size of a list by one.",
        initialSize - 1, getList().size());
  }
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