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Copy pathSourceQueuedIteratorTest.java
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95 lines (74 loc) · 2.33 KB
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/*
* Copyright 2011-2016 David Karnok
*
* 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 ix;
import org.junit.*;
public class SourceQueuedIteratorTest {
IxSourceQueuedIterator<Integer, Integer, Integer> it;
@Before
public void before() {
it = new IxSourceQueuedIterator<Integer, Integer, Integer>(Ix.<Integer>empty().iterator()) {
@Override
protected boolean moveNext() {
return false;
}
};
}
@Test
public void normal() {
Assert.assertTrue(it.isEmpty());
Assert.assertEquals(null, it.peek());
it.offer(1);
Assert.assertFalse(it.isEmpty());
Assert.assertEquals(1, it.peek());
Assert.assertEquals(1, it.poll());
Assert.assertTrue(it.isEmpty());
Assert.assertEquals(null, it.peek());
Assert.assertNull(it.poll());
Assert.assertTrue(it.isEmpty());
}
@Test(expected = NullPointerException.class)
public void nullOffer() {
it.offer(null);
}
@Test
public void clear() {
Assert.assertTrue(it.isEmpty());
it.offer(1);
Assert.assertFalse(it.isEmpty());
it.clear();
Assert.assertNull(it.poll());
Assert.assertTrue(it.isEmpty());
}
@Test
public void nullWraps() {
Assert.assertSame(IxSourceQueuedIterator.NULL, it.toObject(null));
}
@Test
public void nullUnwraps() {
Assert.assertNull(it.fromObject(IxSourceQueuedIterator.NULL));
}
@Test
public void foreach() {
final int[] count = { 0 };
it.<Object>foreach(new IxConsumer2<Integer, Object>() {
@Override
public void accept(Integer a, Object b) {
count[0]++;
}
}, null);
Assert.assertEquals(0, count[0]);
}
}