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DistinctIteratorTest.java
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DistinctIteratorTest.java
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/*
* Copyright (c) 2022 The Bank of New York Mellon.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompany this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.eclipse.collections.impl.lazy.iterator;
import java.util.List;
import java.util.NoSuchElementException;
import org.eclipse.collections.api.factory.Lists;
import org.junit.Assert;
import org.junit.Test;
public class DistinctIteratorTest
{
@Test(expected = UnsupportedOperationException.class)
public void remove()
{
this.newDistinctIterator().remove();
}
private DistinctIterator<Integer> newDistinctIterator()
{
return new DistinctIterator<>(Lists.mutable.of(4, 1, 4, 10, 1, 100));
}
@Test
public void iterator()
{
List<Integer> result = Lists.mutable.empty();
DistinctIterator<Integer> iterator = this.newDistinctIterator();
while (iterator.hasNext())
{
result.add(iterator.next());
}
Assert.assertEquals(Lists.mutable.of(4, 1, 10, 100), result);
}
@Test(expected = NoSuchElementException.class)
public void nextException()
{
DistinctIterator<Integer> iterator = new DistinctIterator<Integer>(Lists.mutable.empty());
Assert.assertFalse(iterator.hasNext());
iterator.next();
}
}