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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.ALLOWS_NULL_VALUES;
import static com.google.common.collect.testing.features.CollectionFeature.REJECTS_DUPLICATES_AT_CREATION;
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 creation (typically through a constructor or static factory method) of a set. Can't be invoked directly; please see com.google.common.collect.testing.SetTestSuiteBuilder.

Author(s):
Chris Povirk
public class SetCreationTester<E> extends AbstractSetTester<E> {
      absent = )
  @CollectionSize.Require(absent = {})
    E[] array = createArrayWithNullElement();
    array[0] = null;
    List<E> expectedWithDuplicateRemoved =
        Arrays.asList(array).subList(1, getNumElements());
    expectContents(expectedWithDuplicateRemoved);
  }
  @CollectionSize.Require(absent = {})
    E[] array = createSamplesArray();
    array[1] = .;
    List<E> expectedWithDuplicateRemoved =
        Arrays.asList(array).subList(1, getNumElements());
    expectContents(expectedWithDuplicateRemoved);
  }
  @CollectionSize.Require(absent = {})
    E[] array = createArrayWithNullElement();
    array[0] = null;
    try {
       = getSubjectGenerator().create(array);
      fail("Should reject duplicate null elements at creation");
    } catch (IllegalArgumentException expected) {
    }
  }
  @CollectionSize.Require(absent = {})
    E[] array = createSamplesArray();
    array[1] = .;
    try {
       = getSubjectGenerator().create(array);
      fail("Should reject duplicate non-null elements at creation");
    } catch (IllegalArgumentException expected) {
    }
  }
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