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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.KNOWN_ORDER;
import static com.google.common.collect.testing.features.CollectionSize.ONE;
import static com.google.common.collect.testing.features.CollectionSize.SEVERAL;
import static com.google.common.collect.testing.features.CollectionSize.ZERO;
A generic JUnit test which tests element() operations on a queue. Can't be invoked directly; please see com.google.common.collect.testing.CollectionTestSuiteBuilder.

Author(s):
Jared Levy
public class QueueElementTester<E> extends AbstractQueueTester<E> {
  public void testElement_empty() {
    try {
      getQueue().element();
      fail("emptyQueue.element() should throw");
    } catch (NoSuchElementException expected) {}
  }
  public void testElement_size1() {
    assertEquals("size1Queue.element() should return first element",
        .getQueue().element());
  }
  public void testElement_sizeMany() {
    assertEquals("sizeManyQueue.element() should return first element",
        .getQueue().element());
  }
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