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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include John Vint |
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*/ |
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|
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import java.io.BufferedInputStream; |
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import java.io.BufferedOutputStream; |
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import java.io.ByteArrayInputStream; |
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import java.io.ByteArrayOutputStream; |
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import java.io.ObjectInputStream; |
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import java.io.ObjectOutputStream; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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|
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.ConcurrentModificationException; |
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import java.util.Collection; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.NoSuchElementException; |
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import java.util.concurrent.*; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.util.Queue; |
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import java.util.concurrent.BlockingQueue; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.Executors; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.LinkedTransferQueue; |
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|
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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@SuppressWarnings({"unchecked", "rawtypes"}) |
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public class LinkedTransferQueueTest extends JSR166TestCase { |
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public static class Generic extends BlockingQueueTest { |
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protected BlockingQueue emptyCollection() { |
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return new LinkedTransferQueue(); |
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} |
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} |
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|
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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main(suite(), args); |
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} |
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|
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public static Test suite() { |
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return new TestSuite(LinkedTransferQueueTest.class); |
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} |
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|
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void checkEmpty(LinkedTransferQueue q) throws InterruptedException { |
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assertTrue(q.isEmpty()); |
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assertEquals(0, q.size()); |
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assertNull(q.peek()); |
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assertNull(q.poll()); |
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assertNull(q.poll(0, MILLISECONDS)); |
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assertEquals(q.toString(), "[]"); |
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assertTrue(Arrays.equals(q.toArray(), new Object[0])); |
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assertFalse(q.iterator().hasNext()); |
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try { |
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q.element(); |
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shouldThrow(); |
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} catch (NoSuchElementException success) { |
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} |
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try { |
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q.iterator().next(); |
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shouldThrow(); |
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} catch (NoSuchElementException success) { |
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} |
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try { |
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q.remove(); |
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shouldThrow(); |
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} catch (NoSuchElementException success) { |
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} |
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class Implementation implements CollectionImplementation { |
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public Class<?> klazz() { return LinkedTransferQueue.class; } |
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public Collection emptyCollection() { return new LinkedTransferQueue(); } |
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public Object makeElement(int i) { return JSR166TestCase.itemFor(i); } |
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public boolean isConcurrent() { return true; } |
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public boolean permitsNulls() { return false; } |
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} |
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return newTestSuite(LinkedTransferQueueTest.class, |
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new Generic().testSuite(), |
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CollectionTest.testSuite(new Implementation())); |
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} |
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|
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/** |
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* being true |
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*/ |
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public void testConstructor1() { |
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assertEquals(0, new LinkedTransferQueue().size()); |
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mustEqual(0, new LinkedTransferQueue().size()); |
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assertTrue(new LinkedTransferQueue().isEmpty()); |
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} |
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|
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try { |
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new LinkedTransferQueue(null); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
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} |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* NullPointerException |
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*/ |
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public void testConstructor3() { |
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Collection<Item> elements = Arrays.asList(new Item[SIZE]); |
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try { |
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Integer[] ints = new Integer[SIZE]; |
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new LinkedTransferQueue(Arrays.asList(ints)); |
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new LinkedTransferQueue(elements); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
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} |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* throws NullPointerException |
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*/ |
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public void testConstructor4() { |
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Item[] items = new Item[2]; |
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items[0] = zero; |
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Collection<Item> elements = Arrays.asList(items); |
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try { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE - 1; ++i) { |
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ints[i] = i; |
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} |
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new LinkedTransferQueue(Arrays.asList(ints)); |
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new LinkedTransferQueue(elements); |
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shouldThrow(); |
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} catch (NullPointerException success) { |
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} |
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} catch (NullPointerException success) {} |
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} |
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|
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/** |
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* Queue contains all elements of the collection it is initialized by |
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*/ |
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public void testConstructor5() { |
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Integer[] ints = new Integer[SIZE]; |
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for (int i = 0; i < SIZE; ++i) { |
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ints[i] = i; |
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} |
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List intList = Arrays.asList(ints); |
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LinkedTransferQueue q |
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= new LinkedTransferQueue(intList); |
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assertEquals(q.size(), intList.size()); |
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assertEquals(q.toString(), intList.toString()); |
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Item[] items = defaultItems; |
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List<Item> intList = Arrays.asList(items); |
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LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(intList); |
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mustEqual(q.size(), intList.size()); |
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mustEqual(q.toString(), intList.toString()); |
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assertTrue(Arrays.equals(q.toArray(), |
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intList.toArray())); |
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assertTrue(Arrays.equals(q.toArray(new Object[0]), |
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assertTrue(Arrays.equals(q.toArray(new Object[SIZE]), |
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intList.toArray(new Object[SIZE]))); |
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for (int i = 0; i < SIZE; ++i) { |
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assertEquals(ints[i], q.poll()); |
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mustEqual(items[i], q.poll()); |
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} |
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} |
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|
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* remainingCapacity() always returns Integer.MAX_VALUE |
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*/ |
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public void testRemainingCapacity() { |
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LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
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BlockingQueue<Item> q = populatedQueue(SIZE); |
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for (int i = 0; i < SIZE; ++i) { |
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assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
124 |
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assertEquals(SIZE - i, q.size()); |
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q.remove(); |
123 |
> |
mustEqual(Integer.MAX_VALUE, q.remainingCapacity()); |
124 |
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mustEqual(SIZE - i, q.size()); |
125 |
> |
mustEqual(i, q.remove()); |
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} |
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for (int i = 0; i < SIZE; ++i) { |
128 |
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assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
129 |
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assertEquals(i, q.size()); |
130 |
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q.add(i); |
150 |
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} |
151 |
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} |
152 |
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|
153 |
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/** |
154 |
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* offer(null) throws NullPointerException |
155 |
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*/ |
156 |
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public void testOfferNull() { |
157 |
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try { |
158 |
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LinkedTransferQueue q = new LinkedTransferQueue(); |
159 |
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q.offer(null); |
160 |
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shouldThrow(); |
161 |
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} catch (NullPointerException success) { |
162 |
< |
} |
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< |
} |
164 |
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|
165 |
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/** |
166 |
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* add(null) throws NullPointerException |
167 |
< |
*/ |
168 |
< |
public void testAddNull() { |
169 |
< |
try { |
170 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
171 |
< |
q.add(null); |
172 |
< |
shouldThrow(); |
173 |
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} catch (NullPointerException success) { |
174 |
< |
} |
175 |
< |
} |
176 |
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|
177 |
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/** |
178 |
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* addAll(null) throws NullPointerException |
179 |
< |
*/ |
180 |
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public void testAddAll1() { |
181 |
< |
try { |
182 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
183 |
< |
q.addAll(null); |
184 |
< |
shouldThrow(); |
185 |
< |
} catch (NullPointerException success) { |
128 |
> |
mustEqual(Integer.MAX_VALUE, q.remainingCapacity()); |
129 |
> |
mustEqual(i, q.size()); |
130 |
> |
mustAdd(q, i); |
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} |
132 |
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} |
133 |
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|
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* addAll(this) throws IllegalArgumentException |
136 |
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*/ |
137 |
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public void testAddAllSelf() { |
138 |
+ |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
139 |
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try { |
194 |
– |
LinkedTransferQueue q = populatedQueue(SIZE); |
140 |
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q.addAll(q); |
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shouldThrow(); |
142 |
< |
} catch (IllegalArgumentException success) { |
198 |
< |
} |
199 |
< |
} |
200 |
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|
201 |
< |
/** |
202 |
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* addAll of a collection with null elements throws NullPointerException |
203 |
< |
*/ |
204 |
< |
public void testAddAll2() { |
205 |
< |
try { |
206 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
207 |
< |
Integer[] ints = new Integer[SIZE]; |
208 |
< |
q.addAll(Arrays.asList(ints)); |
209 |
< |
shouldThrow(); |
210 |
< |
} catch (NullPointerException success) { |
211 |
< |
} |
142 |
> |
} catch (IllegalArgumentException success) {} |
143 |
|
} |
144 |
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|
145 |
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/** |
147 |
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* NullPointerException after possibly adding some elements |
148 |
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*/ |
149 |
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public void testAddAll3() { |
150 |
+ |
LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
151 |
+ |
Item[] items = new Item[2]; items[0] = zero; |
152 |
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try { |
153 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
221 |
< |
Integer[] ints = new Integer[SIZE]; |
222 |
< |
for (int i = 0; i < SIZE - 1; ++i) { |
223 |
< |
ints[i] = i; |
224 |
< |
} |
225 |
< |
q.addAll(Arrays.asList(ints)); |
153 |
> |
q.addAll(Arrays.asList(items)); |
154 |
|
shouldThrow(); |
155 |
< |
} catch (NullPointerException success) { |
228 |
< |
} |
155 |
> |
} catch (NullPointerException success) {} |
156 |
|
} |
157 |
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|
158 |
|
/** |
159 |
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* Queue contains all elements, in traversal order, of successful addAll |
160 |
|
*/ |
161 |
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public void testAddAll5() { |
162 |
< |
Integer[] empty = new Integer[0]; |
163 |
< |
Integer[] ints = new Integer[SIZE]; |
237 |
< |
for (int i = 0; i < SIZE; ++i) { |
238 |
< |
ints[i] = i; |
239 |
< |
} |
162 |
> |
Item[] empty = new Item[0]; |
163 |
> |
Item[] items = defaultItems; |
164 |
|
LinkedTransferQueue q = new LinkedTransferQueue(); |
165 |
|
assertFalse(q.addAll(Arrays.asList(empty))); |
166 |
< |
assertTrue(q.addAll(Arrays.asList(ints))); |
166 |
> |
assertTrue(q.addAll(Arrays.asList(items))); |
167 |
|
for (int i = 0; i < SIZE; ++i) { |
168 |
< |
assertEquals(ints[i], q.poll()); |
168 |
> |
mustEqual(items[i], q.poll()); |
169 |
|
} |
170 |
|
} |
171 |
|
|
172 |
|
/** |
249 |
– |
* put(null) throws NullPointerException |
250 |
– |
*/ |
251 |
– |
public void testPutNull() throws InterruptedException { |
252 |
– |
try { |
253 |
– |
LinkedTransferQueue q = new LinkedTransferQueue(); |
254 |
– |
q.put(null); |
255 |
– |
shouldThrow(); |
256 |
– |
} catch (NullPointerException success) {} |
257 |
– |
} |
258 |
– |
|
259 |
– |
/** |
173 |
|
* all elements successfully put are contained |
174 |
|
*/ |
175 |
|
public void testPut() { |
176 |
< |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
176 |
> |
LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
177 |
> |
Item[] items = defaultItems; |
178 |
|
for (int i = 0; i < SIZE; ++i) { |
179 |
< |
assertEquals(q.size(), i); |
180 |
< |
q.put(i); |
181 |
< |
assertTrue(q.contains(i)); |
179 |
> |
mustEqual(i, q.size()); |
180 |
> |
q.put(items[i]); |
181 |
> |
mustContain(q, items[i]); |
182 |
|
} |
183 |
|
} |
184 |
|
|
186 |
|
* take retrieves elements in FIFO order |
187 |
|
*/ |
188 |
|
public void testTake() throws InterruptedException { |
189 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
189 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
190 |
|
for (int i = 0; i < SIZE; ++i) { |
191 |
< |
assertEquals(i, (int) q.take()); |
191 |
> |
mustEqual(i, q.take()); |
192 |
|
} |
193 |
|
} |
194 |
|
|
195 |
|
/** |
196 |
< |
* take blocks interruptibly when empty |
283 |
< |
*/ |
284 |
< |
public void testTakeFromEmpty() throws InterruptedException { |
285 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
286 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
287 |
< |
void realRun() throws InterruptedException { |
288 |
< |
q.take(); |
289 |
< |
}}); |
290 |
< |
Thread.sleep(SHORT_DELAY_MS); |
291 |
< |
t.interrupt(); |
292 |
< |
t.join(); |
293 |
< |
} |
294 |
< |
|
295 |
< |
/** |
296 |
< |
* Take removes existing elements until empty, then blocks interruptibly |
196 |
> |
* take removes existing elements until empty, then blocks interruptibly |
197 |
|
*/ |
198 |
|
public void testBlockingTake() throws InterruptedException { |
199 |
< |
final LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
200 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
201 |
< |
void realRun() throws InterruptedException { |
202 |
< |
for (int i = 0; i < SIZE; ++i) { |
203 |
< |
threadAssertEquals(i, (int) q.take()); |
204 |
< |
} |
205 |
< |
q.take(); |
199 |
> |
final BlockingQueue<Item> q = populatedQueue(SIZE); |
200 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
201 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
202 |
> |
public void realRun() throws InterruptedException { |
203 |
> |
for (int i = 0; i < SIZE; i++) mustEqual(i, q.take()); |
204 |
> |
|
205 |
> |
Thread.currentThread().interrupt(); |
206 |
> |
try { |
207 |
> |
q.take(); |
208 |
> |
shouldThrow(); |
209 |
> |
} catch (InterruptedException success) {} |
210 |
> |
assertFalse(Thread.interrupted()); |
211 |
> |
|
212 |
> |
pleaseInterrupt.countDown(); |
213 |
> |
try { |
214 |
> |
q.take(); |
215 |
> |
shouldThrow(); |
216 |
> |
} catch (InterruptedException success) {} |
217 |
> |
assertFalse(Thread.interrupted()); |
218 |
|
}}); |
219 |
< |
Thread.sleep(SMALL_DELAY_MS); |
219 |
> |
|
220 |
> |
await(pleaseInterrupt); |
221 |
> |
if (randomBoolean()) assertThreadBlocks(t, Thread.State.WAITING); |
222 |
|
t.interrupt(); |
223 |
< |
t.join(); |
310 |
< |
checkEmpty(q); |
223 |
> |
awaitTermination(t); |
224 |
|
} |
225 |
|
|
226 |
|
/** |
227 |
|
* poll succeeds unless empty |
228 |
|
*/ |
229 |
|
public void testPoll() throws InterruptedException { |
230 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
230 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
231 |
|
for (int i = 0; i < SIZE; ++i) { |
232 |
< |
assertEquals(i, (int) q.poll()); |
232 |
> |
mustEqual(i, q.poll()); |
233 |
|
} |
234 |
|
assertNull(q.poll()); |
235 |
|
checkEmpty(q); |
236 |
|
} |
237 |
|
|
238 |
|
/** |
239 |
< |
* timed pool with zero timeout succeeds when non-empty, else times out |
239 |
> |
* timed poll with zero timeout succeeds when non-empty, else times out |
240 |
|
*/ |
241 |
|
public void testTimedPoll0() throws InterruptedException { |
242 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
242 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
243 |
|
for (int i = 0; i < SIZE; ++i) { |
244 |
< |
assertEquals(i, (int) q.poll(0, MILLISECONDS)); |
244 |
> |
mustEqual(i, q.poll(0, MILLISECONDS)); |
245 |
|
} |
246 |
|
assertNull(q.poll(0, MILLISECONDS)); |
247 |
|
checkEmpty(q); |
248 |
|
} |
249 |
|
|
250 |
|
/** |
251 |
< |
* timed pool with nonzero timeout succeeds when non-empty, else times out |
251 |
> |
* timed poll with nonzero timeout succeeds when non-empty, else times out |
252 |
|
*/ |
253 |
|
public void testTimedPoll() throws InterruptedException { |
254 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
255 |
< |
for (int i = 0; i < SIZE; ++i) { |
256 |
< |
long t0 = System.nanoTime(); |
257 |
< |
assertEquals(i, (int) q.poll(LONG_DELAY_MS, MILLISECONDS)); |
258 |
< |
long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024); |
259 |
< |
assertTrue(millisElapsed < SMALL_DELAY_MS); |
260 |
< |
} |
261 |
< |
assertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
254 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
255 |
> |
long startTime = System.nanoTime(); |
256 |
> |
for (int i = 0; i < SIZE; ++i) |
257 |
> |
mustEqual(i, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
258 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
259 |
> |
|
260 |
> |
startTime = System.nanoTime(); |
261 |
> |
assertNull(q.poll(timeoutMillis(), MILLISECONDS)); |
262 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
263 |
|
checkEmpty(q); |
264 |
|
} |
265 |
|
|
268 |
|
* returning timeout status |
269 |
|
*/ |
270 |
|
public void testInterruptedTimedPoll() throws InterruptedException { |
271 |
< |
final LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
272 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
273 |
< |
void realRun() throws InterruptedException { |
274 |
< |
for (int i = 0; i < SIZE; ++i) { |
275 |
< |
long t0 = System.nanoTime(); |
276 |
< |
threadAssertEquals(i, (int) q.poll(LONG_DELAY_MS, |
277 |
< |
MILLISECONDS)); |
278 |
< |
long millisElapsed = (System.nanoTime() - t0)/(1024 * 1024); |
279 |
< |
assertTrue(millisElapsed < SMALL_DELAY_MS); |
280 |
< |
} |
281 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
271 |
> |
final BlockingQueue<Item> q = populatedQueue(SIZE); |
272 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
273 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
274 |
> |
public void realRun() throws InterruptedException { |
275 |
> |
for (int i = 0; i < SIZE; i++) |
276 |
> |
mustEqual(i, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
277 |
> |
|
278 |
> |
Thread.currentThread().interrupt(); |
279 |
> |
try { |
280 |
> |
q.poll(randomTimeout(), randomTimeUnit()); |
281 |
> |
shouldThrow(); |
282 |
> |
} catch (InterruptedException success) {} |
283 |
> |
assertFalse(Thread.interrupted()); |
284 |
> |
|
285 |
> |
pleaseInterrupt.countDown(); |
286 |
> |
try { |
287 |
> |
q.poll(LONGER_DELAY_MS, MILLISECONDS); |
288 |
> |
shouldThrow(); |
289 |
> |
} catch (InterruptedException success) {} |
290 |
> |
assertFalse(Thread.interrupted()); |
291 |
|
}}); |
292 |
< |
Thread.sleep(SMALL_DELAY_MS); |
292 |
> |
|
293 |
> |
await(pleaseInterrupt); |
294 |
> |
if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
295 |
|
t.interrupt(); |
296 |
< |
t.join(); |
296 |
> |
awaitTermination(t); |
297 |
|
checkEmpty(q); |
298 |
|
} |
299 |
|
|
300 |
|
/** |
301 |
< |
* timed poll before a delayed offer fails; after offer succeeds; |
302 |
< |
* on interruption throws |
301 |
> |
* timed poll after thread interrupted throws InterruptedException |
302 |
> |
* instead of returning timeout status |
303 |
|
*/ |
304 |
< |
public void testTimedPollWithOffer() throws InterruptedException { |
305 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
306 |
< |
Thread t = newStartedThread(new CheckedInterruptedRunnable() { |
307 |
< |
void realRun() throws InterruptedException { |
308 |
< |
threadAssertNull(q.poll(SHORT_DELAY_MS, MILLISECONDS)); |
309 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
310 |
< |
q.poll(LONG_DELAY_MS, MILLISECONDS); |
304 |
> |
public void testTimedPollAfterInterrupt() throws InterruptedException { |
305 |
> |
final BlockingQueue<Item> q = populatedQueue(SIZE); |
306 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
307 |
> |
public void realRun() throws InterruptedException { |
308 |
> |
Thread.currentThread().interrupt(); |
309 |
> |
for (int i = 0; i < SIZE; ++i) |
310 |
> |
mustEqual(i, q.poll(randomTimeout(), randomTimeUnit())); |
311 |
> |
try { |
312 |
> |
q.poll(randomTimeout(), randomTimeUnit()); |
313 |
> |
shouldThrow(); |
314 |
> |
} catch (InterruptedException success) {} |
315 |
> |
assertFalse(Thread.interrupted()); |
316 |
|
}}); |
317 |
< |
Thread.sleep(SMALL_DELAY_MS); |
318 |
< |
assertTrue(q.offer(zero, SHORT_DELAY_MS, MILLISECONDS)); |
319 |
< |
t.interrupt(); |
390 |
< |
t.join(); |
317 |
> |
|
318 |
> |
awaitTermination(t); |
319 |
> |
checkEmpty(q); |
320 |
|
} |
321 |
|
|
322 |
|
/** |
323 |
|
* peek returns next element, or null if empty |
324 |
|
*/ |
325 |
|
public void testPeek() throws InterruptedException { |
326 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
326 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
327 |
|
for (int i = 0; i < SIZE; ++i) { |
328 |
< |
assertEquals(i, (int) q.peek()); |
329 |
< |
assertEquals(i, (int) q.poll()); |
328 |
> |
mustEqual(i, q.peek()); |
329 |
> |
mustEqual(i, q.poll()); |
330 |
|
assertTrue(q.peek() == null || |
331 |
< |
i != (int) q.peek()); |
331 |
> |
i != q.peek().value); |
332 |
|
} |
333 |
|
assertNull(q.peek()); |
334 |
|
checkEmpty(q); |
338 |
|
* element returns next element, or throws NoSuchElementException if empty |
339 |
|
*/ |
340 |
|
public void testElement() throws InterruptedException { |
341 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
341 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
342 |
|
for (int i = 0; i < SIZE; ++i) { |
343 |
< |
assertEquals(i, (int) q.element()); |
344 |
< |
assertEquals(i, (int) q.poll()); |
343 |
> |
mustEqual(i, q.element()); |
344 |
> |
mustEqual(i, q.poll()); |
345 |
|
} |
346 |
|
try { |
347 |
|
q.element(); |
348 |
|
shouldThrow(); |
349 |
< |
} catch (NoSuchElementException success) { |
421 |
< |
} |
349 |
> |
} catch (NoSuchElementException success) {} |
350 |
|
checkEmpty(q); |
351 |
|
} |
352 |
|
|
354 |
|
* remove removes next element, or throws NoSuchElementException if empty |
355 |
|
*/ |
356 |
|
public void testRemove() throws InterruptedException { |
357 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
357 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
358 |
|
for (int i = 0; i < SIZE; ++i) { |
359 |
< |
assertEquals(i, (int) q.remove()); |
359 |
> |
mustEqual(i, q.remove()); |
360 |
|
} |
361 |
|
try { |
362 |
|
q.remove(); |
363 |
|
shouldThrow(); |
364 |
< |
} catch (NoSuchElementException success) { |
437 |
< |
} |
438 |
< |
checkEmpty(q); |
439 |
< |
} |
440 |
< |
|
441 |
< |
/** |
442 |
< |
* remove(x) removes x and returns true if present |
443 |
< |
*/ |
444 |
< |
public void testRemoveElement() throws InterruptedException { |
445 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
446 |
< |
for (int i = 1; i < SIZE; i += 2) { |
447 |
< |
assertTrue(q.remove(i)); |
448 |
< |
} |
449 |
< |
for (int i = 0; i < SIZE; i += 2) { |
450 |
< |
assertTrue(q.remove(i)); |
451 |
< |
assertFalse(q.remove(i + 1)); |
452 |
< |
} |
364 |
> |
} catch (NoSuchElementException success) {} |
365 |
|
checkEmpty(q); |
366 |
|
} |
367 |
|
|
369 |
|
* An add following remove(x) succeeds |
370 |
|
*/ |
371 |
|
public void testRemoveElementAndAdd() throws InterruptedException { |
372 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
373 |
< |
assertTrue(q.add(one)); |
374 |
< |
assertTrue(q.add(two)); |
375 |
< |
assertTrue(q.remove(one)); |
376 |
< |
assertTrue(q.remove(two)); |
377 |
< |
assertTrue(q.add(three)); |
378 |
< |
assertTrue(q.take() == three); |
372 |
> |
LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
373 |
> |
mustAdd(q, one); |
374 |
> |
mustAdd(q, two); |
375 |
> |
mustRemove(q, one); |
376 |
> |
mustRemove(q, two); |
377 |
> |
mustAdd(q, three); |
378 |
> |
mustEqual(q.take(), three); |
379 |
|
} |
380 |
|
|
381 |
|
/** |
382 |
|
* contains(x) reports true when elements added but not yet removed |
383 |
|
*/ |
384 |
|
public void testContains() { |
385 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
385 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
386 |
|
for (int i = 0; i < SIZE; ++i) { |
387 |
< |
assertTrue(q.contains(i)); |
388 |
< |
assertEquals(i, (int) q.poll()); |
389 |
< |
assertFalse(q.contains(i)); |
387 |
> |
mustContain(q, i); |
388 |
> |
mustEqual(i, q.poll()); |
389 |
> |
mustNotContain(q, i); |
390 |
|
} |
391 |
|
} |
392 |
|
|
394 |
|
* clear removes all elements |
395 |
|
*/ |
396 |
|
public void testClear() throws InterruptedException { |
397 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
397 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
398 |
|
q.clear(); |
399 |
|
checkEmpty(q); |
400 |
< |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
400 |
> |
mustEqual(Integer.MAX_VALUE, q.remainingCapacity()); |
401 |
|
q.add(one); |
402 |
|
assertFalse(q.isEmpty()); |
403 |
< |
assertEquals(1, q.size()); |
404 |
< |
assertTrue(q.contains(one)); |
403 |
> |
mustEqual(1, q.size()); |
404 |
> |
mustContain(q, one); |
405 |
|
q.clear(); |
406 |
|
checkEmpty(q); |
407 |
|
} |
410 |
|
* containsAll(c) is true when c contains a subset of elements |
411 |
|
*/ |
412 |
|
public void testContainsAll() { |
413 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
414 |
< |
LinkedTransferQueue<Integer> p = new LinkedTransferQueue<Integer>(); |
413 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
414 |
> |
LinkedTransferQueue<Item> p = new LinkedTransferQueue<>(); |
415 |
|
for (int i = 0; i < SIZE; ++i) { |
416 |
|
assertTrue(q.containsAll(p)); |
417 |
|
assertFalse(p.containsAll(q)); |
418 |
< |
p.add(i); |
418 |
> |
mustAdd(p, i); |
419 |
|
} |
420 |
|
assertTrue(p.containsAll(q)); |
421 |
|
} |
425 |
|
* if changed |
426 |
|
*/ |
427 |
|
public void testRetainAll() { |
428 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
429 |
< |
LinkedTransferQueue p = populatedQueue(SIZE); |
428 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
429 |
> |
LinkedTransferQueue<Item> p = populatedQueue(SIZE); |
430 |
|
for (int i = 0; i < SIZE; ++i) { |
431 |
|
boolean changed = q.retainAll(p); |
432 |
|
if (i == 0) { |
435 |
|
assertTrue(changed); |
436 |
|
} |
437 |
|
assertTrue(q.containsAll(p)); |
438 |
< |
assertEquals(SIZE - i, q.size()); |
438 |
> |
mustEqual(SIZE - i, q.size()); |
439 |
|
p.remove(); |
440 |
|
} |
441 |
|
} |
446 |
|
*/ |
447 |
|
public void testRemoveAll() { |
448 |
|
for (int i = 1; i < SIZE; ++i) { |
449 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
450 |
< |
LinkedTransferQueue p = populatedQueue(i); |
449 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
450 |
> |
LinkedTransferQueue<Item> p = populatedQueue(i); |
451 |
|
assertTrue(q.removeAll(p)); |
452 |
< |
assertEquals(SIZE - i, q.size()); |
452 |
> |
mustEqual(SIZE - i, q.size()); |
453 |
|
for (int j = 0; j < i; ++j) { |
454 |
< |
assertFalse(q.contains(p.remove())); |
454 |
> |
mustNotContain(q, p.remove()); |
455 |
|
} |
456 |
|
} |
457 |
|
} |
458 |
|
|
459 |
|
/** |
460 |
< |
* toArray contains all elements |
460 |
> |
* toArray() contains all elements in FIFO order |
461 |
|
*/ |
462 |
< |
public void testToArray() throws InterruptedException { |
463 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
464 |
< |
Object[] o = q.toArray(); |
465 |
< |
for (int i = 0; i < o.length; i++) { |
466 |
< |
assertEquals(o[i], q.take()); |
467 |
< |
} |
462 |
> |
public void testToArray() { |
463 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
464 |
> |
Object[] a = q.toArray(); |
465 |
> |
assertSame(Object[].class, a.getClass()); |
466 |
> |
for (Object o : a) |
467 |
> |
assertSame(o, q.poll()); |
468 |
> |
assertTrue(q.isEmpty()); |
469 |
|
} |
470 |
|
|
471 |
|
/** |
472 |
< |
* toArray(a) contains all elements |
472 |
> |
* toArray(a) contains all elements in FIFO order |
473 |
|
*/ |
474 |
< |
public void testToArray2() throws InterruptedException { |
475 |
< |
LinkedTransferQueue<Integer> q = populatedQueue(SIZE); |
476 |
< |
Integer[] ints = new Integer[SIZE]; |
477 |
< |
ints = q.toArray(ints); |
478 |
< |
for (int i = 0; i < ints.length; i++) { |
479 |
< |
assertEquals(ints[i], q.take()); |
480 |
< |
} |
474 |
> |
public void testToArray2() { |
475 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
476 |
> |
Item[] items = new Item[SIZE]; |
477 |
> |
Item[] array = q.toArray(items); |
478 |
> |
assertSame(items, array); |
479 |
> |
for (Item o : items) |
480 |
> |
assertSame(o, q.poll()); |
481 |
> |
assertTrue(q.isEmpty()); |
482 |
|
} |
483 |
|
|
484 |
|
/** |
485 |
< |
* toArray(null) throws NullPointerException |
485 |
> |
* toArray(incompatible array type) throws ArrayStoreException |
486 |
|
*/ |
487 |
< |
public void testToArray_BadArg() { |
487 |
> |
public void testToArray1_BadArg() { |
488 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
489 |
|
try { |
490 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
576 |
< |
Object o[] = q.toArray(null); |
490 |
> |
q.toArray(new String[10]); |
491 |
|
shouldThrow(); |
492 |
< |
} catch (NullPointerException success) { |
579 |
< |
} |
492 |
> |
} catch (ArrayStoreException success) {} |
493 |
|
} |
494 |
|
|
495 |
|
/** |
496 |
< |
* toArray with incompatible array type throws CCE |
496 |
> |
* iterator iterates through all elements |
497 |
|
*/ |
498 |
< |
public void testToArray1_BadArg() { |
499 |
< |
try { |
500 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
501 |
< |
Object o[] = q.toArray(new String[10]); |
502 |
< |
shouldThrow(); |
503 |
< |
} catch (ArrayStoreException success) { |
504 |
< |
} |
498 |
> |
public void testIterator() throws InterruptedException { |
499 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
500 |
> |
Iterator<? extends Item> it = q.iterator(); |
501 |
> |
int i; |
502 |
> |
for (i = 0; it.hasNext(); i++) |
503 |
> |
mustContain(q, it.next()); |
504 |
> |
mustEqual(i, SIZE); |
505 |
> |
assertIteratorExhausted(it); |
506 |
> |
|
507 |
> |
it = q.iterator(); |
508 |
> |
for (i = 0; it.hasNext(); i++) |
509 |
> |
mustEqual(it.next(), q.take()); |
510 |
> |
mustEqual(i, SIZE); |
511 |
> |
assertIteratorExhausted(it); |
512 |
|
} |
513 |
|
|
514 |
|
/** |
515 |
< |
* iterator iterates through all elements |
515 |
> |
* iterator of empty collection has no elements |
516 |
|
*/ |
517 |
< |
public void testIterator() throws InterruptedException { |
518 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
599 |
< |
Iterator it = q.iterator(); |
600 |
< |
int i = 0; |
601 |
< |
while (it.hasNext()) { |
602 |
< |
assertEquals(it.next(), i++); |
603 |
< |
} |
604 |
< |
assertEquals(i, SIZE); |
517 |
> |
public void testEmptyIterator() { |
518 |
> |
assertIteratorExhausted(new LinkedTransferQueue().iterator()); |
519 |
|
} |
520 |
|
|
521 |
|
/** |
522 |
|
* iterator.remove() removes current element |
523 |
|
*/ |
524 |
|
public void testIteratorRemove() { |
525 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
525 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
526 |
|
q.add(two); |
527 |
|
q.add(one); |
528 |
|
q.add(three); |
529 |
|
|
530 |
< |
Iterator it = q.iterator(); |
530 |
> |
Iterator<? extends Item> it = q.iterator(); |
531 |
|
it.next(); |
532 |
|
it.remove(); |
533 |
|
|
534 |
|
it = q.iterator(); |
535 |
< |
assertEquals(it.next(), one); |
536 |
< |
assertEquals(it.next(), three); |
535 |
> |
assertSame(it.next(), one); |
536 |
> |
assertSame(it.next(), three); |
537 |
|
assertFalse(it.hasNext()); |
538 |
|
} |
539 |
|
|
541 |
|
* iterator ordering is FIFO |
542 |
|
*/ |
543 |
|
public void testIteratorOrdering() { |
544 |
< |
final LinkedTransferQueue<Integer> q |
545 |
< |
= new LinkedTransferQueue<Integer>(); |
632 |
< |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
544 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
545 |
> |
mustEqual(Integer.MAX_VALUE, q.remainingCapacity()); |
546 |
|
q.add(one); |
547 |
|
q.add(two); |
548 |
|
q.add(three); |
549 |
< |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
549 |
> |
mustEqual(Integer.MAX_VALUE, q.remainingCapacity()); |
550 |
|
int k = 0; |
551 |
< |
for (Integer n : q) { |
552 |
< |
assertEquals(++k, (int) n); |
551 |
> |
for (Item n : q) { |
552 |
> |
mustEqual(++k, n); |
553 |
|
} |
554 |
< |
assertEquals(3, k); |
554 |
> |
mustEqual(3, k); |
555 |
|
} |
556 |
|
|
557 |
|
/** |
558 |
|
* Modifications do not cause iterators to fail |
559 |
|
*/ |
560 |
|
public void testWeaklyConsistentIteration() { |
561 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
561 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
562 |
|
q.add(one); |
563 |
|
q.add(two); |
564 |
|
q.add(three); |
565 |
< |
for (Iterator it = q.iterator(); it.hasNext();) { |
565 |
> |
for (Iterator<? extends Item> it = q.iterator(); it.hasNext();) { |
566 |
|
q.remove(); |
567 |
|
it.next(); |
568 |
|
} |
569 |
< |
assertEquals(0, q.size()); |
569 |
> |
mustEqual(0, q.size()); |
570 |
|
} |
571 |
|
|
572 |
|
/** |
573 |
|
* toString contains toStrings of elements |
574 |
|
*/ |
575 |
|
public void testToString() { |
576 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
576 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
577 |
|
String s = q.toString(); |
578 |
|
for (int i = 0; i < SIZE; ++i) { |
579 |
< |
assertTrue(s.indexOf(String.valueOf(i)) >= 0); |
579 |
> |
assertTrue(s.contains(String.valueOf(i))); |
580 |
|
} |
581 |
|
} |
582 |
|
|
584 |
|
* offer transfers elements across Executor tasks |
585 |
|
*/ |
586 |
|
public void testOfferInExecutor() { |
587 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
588 |
< |
q.add(one); |
589 |
< |
q.add(two); |
590 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
591 |
< |
|
592 |
< |
executor.execute(new CheckedRunnable() { |
593 |
< |
void realRun() { |
594 |
< |
threadAssertTrue(q.offer(three, MEDIUM_DELAY_MS, |
595 |
< |
MILLISECONDS)); |
596 |
< |
}}); |
597 |
< |
|
598 |
< |
executor.execute(new CheckedRunnable() { |
686 |
< |
void realRun() throws InterruptedException { |
687 |
< |
Thread.sleep(SMALL_DELAY_MS); |
688 |
< |
threadAssertEquals(one, q.take()); |
689 |
< |
}}); |
587 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
588 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
589 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
590 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
591 |
> |
|
592 |
> |
executor.execute(new CheckedRunnable() { |
593 |
> |
public void realRun() throws InterruptedException { |
594 |
> |
threadsStarted.await(); |
595 |
> |
long startTime = System.nanoTime(); |
596 |
> |
assertTrue(q.offer(one, LONG_DELAY_MS, MILLISECONDS)); |
597 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
598 |
> |
}}); |
599 |
|
|
600 |
< |
joinPool(executor); |
600 |
> |
executor.execute(new CheckedRunnable() { |
601 |
> |
public void realRun() throws InterruptedException { |
602 |
> |
threadsStarted.await(); |
603 |
> |
assertSame(one, q.take()); |
604 |
> |
checkEmpty(q); |
605 |
> |
}}); |
606 |
> |
} |
607 |
|
} |
608 |
|
|
609 |
|
/** |
610 |
< |
* poll retrieves elements across Executor threads |
610 |
> |
* timed poll retrieves elements across Executor threads |
611 |
|
*/ |
612 |
|
public void testPollInExecutor() { |
613 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
614 |
< |
ExecutorService executor = Executors.newFixedThreadPool(2); |
615 |
< |
|
616 |
< |
executor.execute(new CheckedRunnable() { |
617 |
< |
void realRun() throws InterruptedException { |
618 |
< |
threadAssertNull(q.poll()); |
619 |
< |
threadAssertTrue(null != q.poll(MEDIUM_DELAY_MS, |
620 |
< |
MILLISECONDS)); |
621 |
< |
threadAssertTrue(q.isEmpty()); |
622 |
< |
}}); |
623 |
< |
|
624 |
< |
executor.execute(new CheckedRunnable() { |
625 |
< |
void realRun() throws InterruptedException { |
626 |
< |
Thread.sleep(SMALL_DELAY_MS); |
712 |
< |
q.put(one); |
713 |
< |
}}); |
714 |
< |
|
715 |
< |
joinPool(executor); |
716 |
< |
} |
717 |
< |
|
718 |
< |
/** |
719 |
< |
* A deserialized serialized queue has same elements in same order |
720 |
< |
*/ |
721 |
< |
public void testSerialization() throws Exception { |
722 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
723 |
< |
|
724 |
< |
ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); |
725 |
< |
ObjectOutputStream out |
726 |
< |
= new ObjectOutputStream(new BufferedOutputStream(bout)); |
727 |
< |
out.writeObject(q); |
728 |
< |
out.close(); |
729 |
< |
|
730 |
< |
ByteArrayInputStream bin |
731 |
< |
= new ByteArrayInputStream(bout.toByteArray()); |
732 |
< |
ObjectInputStream in |
733 |
< |
= new ObjectInputStream(new BufferedInputStream(bin)); |
734 |
< |
LinkedTransferQueue r = (LinkedTransferQueue) in.readObject(); |
613 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
614 |
> |
final CheckedBarrier threadsStarted = new CheckedBarrier(2); |
615 |
> |
final ExecutorService executor = Executors.newFixedThreadPool(2); |
616 |
> |
try (PoolCleaner cleaner = cleaner(executor)) { |
617 |
> |
|
618 |
> |
executor.execute(new CheckedRunnable() { |
619 |
> |
public void realRun() throws InterruptedException { |
620 |
> |
assertNull(q.poll()); |
621 |
> |
threadsStarted.await(); |
622 |
> |
long startTime = System.nanoTime(); |
623 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
624 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
625 |
> |
checkEmpty(q); |
626 |
> |
}}); |
627 |
|
|
628 |
< |
assertEquals(q.size(), r.size()); |
629 |
< |
while (!q.isEmpty()) { |
630 |
< |
assertEquals(q.remove(), r.remove()); |
628 |
> |
executor.execute(new CheckedRunnable() { |
629 |
> |
public void realRun() throws InterruptedException { |
630 |
> |
threadsStarted.await(); |
631 |
> |
q.put(one); |
632 |
> |
}}); |
633 |
|
} |
634 |
|
} |
635 |
|
|
636 |
|
/** |
637 |
< |
* drainTo(null) throws NullPointerException |
637 |
> |
* A deserialized/reserialized queue has same elements in same order |
638 |
|
*/ |
639 |
< |
public void testDrainToNull() { |
640 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
641 |
< |
try { |
748 |
< |
q.drainTo(null); |
749 |
< |
shouldThrow(); |
750 |
< |
} catch (NullPointerException success) { |
751 |
< |
} |
752 |
< |
} |
639 |
> |
public void testSerialization() throws Exception { |
640 |
> |
Queue<Item> x = populatedQueue(SIZE); |
641 |
> |
Queue<Item> y = serialClone(x); |
642 |
|
|
643 |
< |
/** |
644 |
< |
* drainTo(this) throws IllegalArgumentException |
645 |
< |
*/ |
646 |
< |
public void testDrainToSelf() { |
647 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
648 |
< |
try { |
649 |
< |
q.drainTo(q); |
761 |
< |
shouldThrow(); |
762 |
< |
} catch (IllegalArgumentException success) { |
643 |
> |
assertNotSame(y, x); |
644 |
> |
mustEqual(x.size(), y.size()); |
645 |
> |
mustEqual(x.toString(), y.toString()); |
646 |
> |
assertTrue(Arrays.equals(x.toArray(), y.toArray())); |
647 |
> |
while (!x.isEmpty()) { |
648 |
> |
assertFalse(y.isEmpty()); |
649 |
> |
mustEqual(x.remove(), y.remove()); |
650 |
|
} |
651 |
+ |
assertTrue(y.isEmpty()); |
652 |
|
} |
653 |
|
|
654 |
|
/** |
655 |
|
* drainTo(c) empties queue into another collection c |
656 |
|
*/ |
657 |
|
public void testDrainTo() { |
658 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
658 |
> |
LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
659 |
|
ArrayList l = new ArrayList(); |
660 |
|
q.drainTo(l); |
661 |
< |
assertEquals(q.size(), 0); |
662 |
< |
assertEquals(l.size(), SIZE); |
661 |
> |
mustEqual(0, q.size()); |
662 |
> |
mustEqual(SIZE, l.size()); |
663 |
|
for (int i = 0; i < SIZE; ++i) { |
664 |
< |
assertEquals(l.get(i), i); |
664 |
> |
mustEqual(i, l.get(i)); |
665 |
|
} |
666 |
|
q.add(zero); |
667 |
|
q.add(one); |
668 |
|
assertFalse(q.isEmpty()); |
669 |
< |
assertTrue(q.contains(zero)); |
670 |
< |
assertTrue(q.contains(one)); |
669 |
> |
mustContain(q, zero); |
670 |
> |
mustContain(q, one); |
671 |
|
l.clear(); |
672 |
|
q.drainTo(l); |
673 |
< |
assertEquals(q.size(), 0); |
674 |
< |
assertEquals(l.size(), 2); |
673 |
> |
mustEqual(0, q.size()); |
674 |
> |
mustEqual(2, l.size()); |
675 |
|
for (int i = 0; i < 2; ++i) { |
676 |
< |
assertEquals(l.get(i), i); |
676 |
> |
mustEqual(i, l.get(i)); |
677 |
|
} |
678 |
|
} |
679 |
|
|
680 |
|
/** |
681 |
< |
* drainTo empties full queue, unblocking a waiting put. |
681 |
> |
* drainTo(c) empties full queue, unblocking a waiting put. |
682 |
|
*/ |
683 |
|
public void testDrainToWithActivePut() throws InterruptedException { |
684 |
< |
final LinkedTransferQueue q = populatedQueue(SIZE); |
684 |
> |
final LinkedTransferQueue<Item> q = populatedQueue(SIZE); |
685 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
686 |
< |
void realRun() { |
687 |
< |
q.put(SIZE + 1); |
686 |
> |
public void realRun() { |
687 |
> |
q.put(new Item(SIZE + 1)); |
688 |
|
}}); |
689 |
|
ArrayList l = new ArrayList(); |
690 |
|
q.drainTo(l); |
691 |
|
assertTrue(l.size() >= SIZE); |
692 |
< |
for (int i = 0; i < SIZE; ++i) { |
693 |
< |
assertEquals(l.get(i), i); |
694 |
< |
} |
807 |
< |
t.join(); |
692 |
> |
for (int i = 0; i < SIZE; ++i) |
693 |
> |
mustEqual(i, l.get(i)); |
694 |
> |
awaitTermination(t); |
695 |
|
assertTrue(q.size() + l.size() >= SIZE); |
696 |
|
} |
697 |
|
|
698 |
|
/** |
699 |
< |
* drainTo(null, n) throws NullPointerException |
813 |
< |
*/ |
814 |
< |
public void testDrainToNullN() { |
815 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
816 |
< |
try { |
817 |
< |
q.drainTo(null, SIZE); |
818 |
< |
shouldThrow(); |
819 |
< |
} catch (NullPointerException success) { |
820 |
< |
} |
821 |
< |
} |
822 |
< |
|
823 |
< |
/** |
824 |
< |
* drainTo(this, n) throws IllegalArgumentException |
825 |
< |
*/ |
826 |
< |
public void testDrainToSelfN() { |
827 |
< |
LinkedTransferQueue q = populatedQueue(SIZE); |
828 |
< |
try { |
829 |
< |
q.drainTo(q, SIZE); |
830 |
< |
shouldThrow(); |
831 |
< |
} catch (IllegalArgumentException success) { |
832 |
< |
} |
833 |
< |
} |
834 |
< |
|
835 |
< |
/** |
836 |
< |
* drainTo(c, n) empties first max {n, size} elements of queue into c |
699 |
> |
* drainTo(c, n) empties first min(n, size) elements of queue into c |
700 |
|
*/ |
701 |
|
public void testDrainToN() { |
702 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
702 |
> |
LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
703 |
|
for (int i = 0; i < SIZE + 2; ++i) { |
704 |
|
for (int j = 0; j < SIZE; j++) { |
705 |
< |
assertTrue(q.offer(j)); |
705 |
> |
mustOffer(q, j); |
706 |
|
} |
707 |
|
ArrayList l = new ArrayList(); |
708 |
|
q.drainTo(l, i); |
709 |
|
int k = (i < SIZE) ? i : SIZE; |
710 |
< |
assertEquals(l.size(), k); |
711 |
< |
assertEquals(q.size(), SIZE - k); |
712 |
< |
for (int j = 0; j < k; ++j) { |
713 |
< |
assertEquals(l.get(j), j); |
714 |
< |
} |
852 |
< |
while (q.poll() != null) |
853 |
< |
; |
710 |
> |
mustEqual(k, l.size()); |
711 |
> |
mustEqual(SIZE - k, q.size()); |
712 |
> |
for (int j = 0; j < k; ++j) |
713 |
> |
mustEqual(j, l.get(j)); |
714 |
> |
do {} while (q.poll() != null); |
715 |
|
} |
716 |
|
} |
717 |
|
|
718 |
|
/** |
719 |
< |
* poll and take decrement the waiting consumer count |
719 |
> |
* timed poll() or take() increments the waiting consumer count; |
720 |
> |
* offer(e) decrements the waiting consumer count |
721 |
|
*/ |
722 |
|
public void testWaitingConsumer() throws InterruptedException { |
723 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
724 |
< |
final ConsumerObserver waiting = new ConsumerObserver(); |
723 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
724 |
> |
mustEqual(0, q.getWaitingConsumerCount()); |
725 |
> |
assertFalse(q.hasWaitingConsumer()); |
726 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
727 |
|
|
728 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
729 |
< |
void realRun() throws InterruptedException { |
730 |
< |
Thread.sleep(SMALL_DELAY_MS); |
731 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
732 |
< |
waiting.setWaitingConsumer(q.getWaitingConsumerCount()); |
733 |
< |
threadAssertTrue(q.offer(new Object())); |
729 |
> |
public void realRun() throws InterruptedException { |
730 |
> |
threadStarted.countDown(); |
731 |
> |
long startTime = System.nanoTime(); |
732 |
> |
assertSame(one, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
733 |
> |
mustEqual(0, q.getWaitingConsumerCount()); |
734 |
> |
assertFalse(q.hasWaitingConsumer()); |
735 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
736 |
|
}}); |
737 |
|
|
738 |
< |
assertTrue(q.poll(LONG_DELAY_MS, MILLISECONDS) != null); |
739 |
< |
assertTrue(q.getWaitingConsumerCount() |
740 |
< |
< waiting.getWaitingConsumers()); |
741 |
< |
t.join(); |
738 |
> |
threadStarted.await(); |
739 |
> |
Callable<Boolean> oneConsumer = new Callable<>() { |
740 |
> |
public Boolean call() { |
741 |
> |
return q.hasWaitingConsumer() |
742 |
> |
&& q.getWaitingConsumerCount() == 1; }}; |
743 |
> |
waitForThreadToEnterWaitState(t, oneConsumer); |
744 |
> |
|
745 |
> |
assertTrue(q.offer(one)); |
746 |
> |
mustEqual(0, q.getWaitingConsumerCount()); |
747 |
> |
assertFalse(q.hasWaitingConsumer()); |
748 |
> |
|
749 |
> |
awaitTermination(t); |
750 |
|
} |
751 |
|
|
752 |
|
/** |
754 |
|
*/ |
755 |
|
public void testTransfer1() throws InterruptedException { |
756 |
|
try { |
757 |
< |
LinkedTransferQueue q = new LinkedTransferQueue(); |
757 |
> |
LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
758 |
|
q.transfer(null); |
759 |
|
shouldThrow(); |
760 |
< |
} catch (NullPointerException ex) { |
887 |
< |
} |
760 |
> |
} catch (NullPointerException success) {} |
761 |
|
} |
762 |
|
|
763 |
|
/** |
764 |
< |
* transfer waits until a poll occurs. The transfered element |
765 |
< |
* is returned by this associated poll. |
764 |
> |
* transfer waits until a poll occurs. The transferred element |
765 |
> |
* is returned by the associated poll. |
766 |
|
*/ |
767 |
|
public void testTransfer2() throws InterruptedException { |
768 |
< |
final LinkedTransferQueue<Integer> q |
769 |
< |
= new LinkedTransferQueue<Integer>(); |
768 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
769 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
770 |
|
|
771 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
772 |
< |
void realRun() throws InterruptedException { |
773 |
< |
q.transfer(SIZE); |
774 |
< |
threadAssertTrue(q.isEmpty()); |
772 |
> |
public void realRun() throws InterruptedException { |
773 |
> |
threadStarted.countDown(); |
774 |
> |
q.transfer(five); |
775 |
> |
checkEmpty(q); |
776 |
|
}}); |
777 |
|
|
778 |
< |
Thread.sleep(SHORT_DELAY_MS); |
779 |
< |
assertEquals(1, q.size()); |
780 |
< |
assertEquals(SIZE, (int) q.poll()); |
781 |
< |
assertTrue(q.isEmpty()); |
782 |
< |
t.join(); |
778 |
> |
threadStarted.await(); |
779 |
> |
Callable<Boolean> oneElement = new Callable<>() { |
780 |
> |
public Boolean call() { |
781 |
> |
return !q.isEmpty() && q.size() == 1; }}; |
782 |
> |
waitForThreadToEnterWaitState(t, oneElement); |
783 |
> |
|
784 |
> |
assertSame(five, q.poll()); |
785 |
> |
checkEmpty(q); |
786 |
> |
awaitTermination(t); |
787 |
|
} |
788 |
|
|
789 |
|
/** |
790 |
|
* transfer waits until a poll occurs, and then transfers in fifo order |
791 |
|
*/ |
792 |
|
public void testTransfer3() throws InterruptedException { |
793 |
< |
final LinkedTransferQueue<Integer> q |
916 |
< |
= new LinkedTransferQueue<Integer>(); |
793 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
794 |
|
|
795 |
|
Thread first = newStartedThread(new CheckedRunnable() { |
796 |
< |
void realRun() throws InterruptedException { |
797 |
< |
Integer i = SIZE + 1; |
798 |
< |
q.transfer(i); |
799 |
< |
threadAssertTrue(!q.contains(i)); |
923 |
< |
threadAssertEquals(1, q.size()); |
796 |
> |
public void realRun() throws InterruptedException { |
797 |
> |
q.transfer(four); |
798 |
> |
mustNotContain(q, four); |
799 |
> |
mustEqual(1, q.size()); |
800 |
|
}}); |
801 |
|
|
802 |
|
Thread interruptedThread = newStartedThread( |
803 |
|
new CheckedInterruptedRunnable() { |
804 |
< |
void realRun() throws InterruptedException { |
805 |
< |
while (q.size() == 0) |
804 |
> |
public void realRun() throws InterruptedException { |
805 |
> |
while (q.isEmpty()) |
806 |
|
Thread.yield(); |
807 |
< |
q.transfer(SIZE); |
807 |
> |
q.transfer(five); |
808 |
|
}}); |
809 |
|
|
810 |
|
while (q.size() < 2) |
811 |
|
Thread.yield(); |
812 |
< |
assertEquals(2, q.size()); |
813 |
< |
assertEquals(SIZE + 1, (int) q.poll()); |
812 |
> |
mustEqual(2, q.size()); |
813 |
> |
assertSame(four, q.poll()); |
814 |
|
first.join(); |
815 |
< |
assertEquals(1, q.size()); |
815 |
> |
mustEqual(1, q.size()); |
816 |
|
interruptedThread.interrupt(); |
817 |
|
interruptedThread.join(); |
818 |
< |
assertEquals(0, q.size()); |
943 |
< |
assertTrue(q.isEmpty()); |
818 |
> |
checkEmpty(q); |
819 |
|
} |
820 |
|
|
821 |
|
/** |
823 |
|
* thread returns the element |
824 |
|
*/ |
825 |
|
public void testTransfer4() throws InterruptedException { |
826 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
826 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
827 |
|
|
828 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
829 |
< |
void realRun() throws InterruptedException { |
829 |
> |
public void realRun() throws InterruptedException { |
830 |
|
q.transfer(four); |
831 |
< |
threadAssertFalse(q.contains(four)); |
832 |
< |
threadAssertEquals(three, q.poll()); |
831 |
> |
mustNotContain(q, four); |
832 |
> |
assertSame(three, q.poll()); |
833 |
|
}}); |
834 |
|
|
835 |
< |
Thread.sleep(SHORT_DELAY_MS); |
835 |
> |
while (q.isEmpty()) |
836 |
> |
Thread.yield(); |
837 |
> |
assertFalse(q.isEmpty()); |
838 |
> |
mustEqual(1, q.size()); |
839 |
|
assertTrue(q.offer(three)); |
840 |
< |
assertEquals(four, q.poll()); |
841 |
< |
t.join(); |
840 |
> |
assertSame(four, q.poll()); |
841 |
> |
awaitTermination(t); |
842 |
|
} |
843 |
|
|
844 |
|
/** |
845 |
< |
* transfer waits until a take occurs. The transfered element |
846 |
< |
* is returned by this associated take. |
845 |
> |
* transfer waits until a take occurs. The transferred element |
846 |
> |
* is returned by the associated take. |
847 |
|
*/ |
848 |
|
public void testTransfer5() throws InterruptedException { |
849 |
< |
final LinkedTransferQueue<Integer> q |
972 |
< |
= new LinkedTransferQueue<Integer>(); |
849 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
850 |
|
|
851 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
852 |
< |
void realRun() throws InterruptedException { |
853 |
< |
q.transfer(SIZE); |
852 |
> |
public void realRun() throws InterruptedException { |
853 |
> |
q.transfer(four); |
854 |
|
checkEmpty(q); |
855 |
|
}}); |
856 |
|
|
857 |
< |
Thread.sleep(SHORT_DELAY_MS); |
858 |
< |
assertEquals(SIZE, (int) q.take()); |
857 |
> |
while (q.isEmpty()) |
858 |
> |
Thread.yield(); |
859 |
> |
assertFalse(q.isEmpty()); |
860 |
> |
mustEqual(1, q.size()); |
861 |
> |
assertSame(four, q.take()); |
862 |
|
checkEmpty(q); |
863 |
< |
t.join(); |
863 |
> |
awaitTermination(t); |
864 |
|
} |
865 |
|
|
866 |
|
/** |
867 |
|
* tryTransfer(null) throws NullPointerException |
868 |
|
*/ |
869 |
|
public void testTryTransfer1() { |
870 |
+ |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
871 |
|
try { |
991 |
– |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
872 |
|
q.tryTransfer(null); |
873 |
|
shouldThrow(); |
874 |
< |
} catch (NullPointerException ex) { |
995 |
< |
} |
874 |
> |
} catch (NullPointerException success) {} |
875 |
|
} |
876 |
|
|
877 |
|
/** |
879 |
|
* consumers waiting to poll or take. |
880 |
|
*/ |
881 |
|
public void testTryTransfer2() throws InterruptedException { |
882 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
882 |
> |
final LinkedTransferQueue<Object> q = new LinkedTransferQueue<>(); |
883 |
|
assertFalse(q.tryTransfer(new Object())); |
884 |
|
assertFalse(q.hasWaitingConsumer()); |
885 |
|
checkEmpty(q); |
891 |
|
*/ |
892 |
|
public void testTryTransfer3() throws InterruptedException { |
893 |
|
final Object hotPotato = new Object(); |
894 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
894 |
> |
final LinkedTransferQueue<Object> q = new LinkedTransferQueue<>(); |
895 |
|
|
896 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
897 |
< |
void realRun() { |
897 |
> |
public void realRun() { |
898 |
|
while (! q.hasWaitingConsumer()) |
899 |
|
Thread.yield(); |
900 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
901 |
< |
threadAssertTrue(q.isEmpty()); |
902 |
< |
threadAssertTrue(q.size() == 0); |
1024 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
900 |
> |
assertTrue(q.hasWaitingConsumer()); |
901 |
> |
checkEmpty(q); |
902 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
903 |
|
}}); |
904 |
|
|
905 |
< |
assertTrue(q.poll(MEDIUM_DELAY_MS, MILLISECONDS) == hotPotato); |
905 |
> |
long startTime = System.nanoTime(); |
906 |
> |
assertSame(hotPotato, q.poll(LONG_DELAY_MS, MILLISECONDS)); |
907 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
908 |
|
checkEmpty(q); |
909 |
< |
t.join(); |
909 |
> |
awaitTermination(t); |
910 |
|
} |
911 |
|
|
912 |
|
/** |
915 |
|
*/ |
916 |
|
public void testTryTransfer4() throws InterruptedException { |
917 |
|
final Object hotPotato = new Object(); |
918 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
918 |
> |
final LinkedTransferQueue<Object> q = new LinkedTransferQueue<>(); |
919 |
|
|
920 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
921 |
< |
void realRun() { |
921 |
> |
public void realRun() { |
922 |
|
while (! q.hasWaitingConsumer()) |
923 |
|
Thread.yield(); |
924 |
< |
threadAssertTrue(q.hasWaitingConsumer()); |
925 |
< |
threadAssertTrue(q.isEmpty()); |
926 |
< |
threadAssertTrue(q.size() == 0); |
1047 |
< |
threadAssertTrue(q.tryTransfer(hotPotato)); |
924 |
> |
assertTrue(q.hasWaitingConsumer()); |
925 |
> |
checkEmpty(q); |
926 |
> |
assertTrue(q.tryTransfer(hotPotato)); |
927 |
|
}}); |
928 |
|
|
929 |
< |
assertTrue(q.take() == hotPotato); |
929 |
> |
assertSame(q.take(), hotPotato); |
930 |
|
checkEmpty(q); |
931 |
< |
t.join(); |
931 |
> |
awaitTermination(t); |
932 |
|
} |
933 |
|
|
934 |
|
/** |
935 |
< |
* tryTransfer waits the amount given if interrupted, and |
1057 |
< |
* throws interrupted exception |
935 |
> |
* tryTransfer blocks interruptibly if no takers |
936 |
|
*/ |
937 |
|
public void testTryTransfer5() throws InterruptedException { |
938 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
938 |
> |
final LinkedTransferQueue<Object> q = new LinkedTransferQueue<>(); |
939 |
> |
final CountDownLatch pleaseInterrupt = new CountDownLatch(1); |
940 |
> |
assertTrue(q.isEmpty()); |
941 |
|
|
942 |
< |
Thread toInterrupt = newStartedThread(new CheckedInterruptedRunnable() { |
943 |
< |
void realRun() throws InterruptedException { |
944 |
< |
q.tryTransfer(new Object(), LONG_DELAY_MS, MILLISECONDS); |
942 |
> |
Thread t = newStartedThread(new CheckedRunnable() { |
943 |
> |
public void realRun() throws InterruptedException { |
944 |
> |
Thread.currentThread().interrupt(); |
945 |
> |
try { |
946 |
> |
q.tryTransfer(new Object(), randomTimeout(), randomTimeUnit()); |
947 |
> |
shouldThrow(); |
948 |
> |
} catch (InterruptedException success) {} |
949 |
> |
assertFalse(Thread.interrupted()); |
950 |
> |
|
951 |
> |
pleaseInterrupt.countDown(); |
952 |
> |
try { |
953 |
> |
q.tryTransfer(new Object(), LONGER_DELAY_MS, MILLISECONDS); |
954 |
> |
shouldThrow(); |
955 |
> |
} catch (InterruptedException success) {} |
956 |
> |
assertFalse(Thread.interrupted()); |
957 |
|
}}); |
958 |
|
|
959 |
< |
Thread.sleep(SMALL_DELAY_MS); |
960 |
< |
toInterrupt.interrupt(); |
961 |
< |
toInterrupt.join(); |
959 |
> |
await(pleaseInterrupt); |
960 |
> |
if (randomBoolean()) assertThreadBlocks(t, Thread.State.TIMED_WAITING); |
961 |
> |
t.interrupt(); |
962 |
> |
awaitTermination(t); |
963 |
> |
checkEmpty(q); |
964 |
|
} |
965 |
|
|
966 |
|
/** |
967 |
< |
* tryTransfer gives up after the timeout and return false |
967 |
> |
* tryTransfer gives up after the timeout and returns false |
968 |
|
*/ |
969 |
|
public void testTryTransfer6() throws InterruptedException { |
970 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
970 |
> |
final LinkedTransferQueue<Object> q = new LinkedTransferQueue<>(); |
971 |
|
|
972 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
973 |
< |
void realRun() throws InterruptedException { |
974 |
< |
threadAssertFalse |
975 |
< |
(q.tryTransfer(new Object(), |
976 |
< |
SHORT_DELAY_MS, MILLISECONDS)); |
973 |
> |
public void realRun() throws InterruptedException { |
974 |
> |
long startTime = System.nanoTime(); |
975 |
> |
assertFalse(q.tryTransfer(new Object(), |
976 |
> |
timeoutMillis(), MILLISECONDS)); |
977 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
978 |
> |
checkEmpty(q); |
979 |
|
}}); |
980 |
|
|
981 |
< |
Thread.sleep(SMALL_DELAY_MS); |
981 |
> |
awaitTermination(t); |
982 |
|
checkEmpty(q); |
1087 |
– |
t.join(); |
983 |
|
} |
984 |
|
|
985 |
|
/** |
987 |
|
* before transfering to a poll or take |
988 |
|
*/ |
989 |
|
public void testTryTransfer7() throws InterruptedException { |
990 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
990 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
991 |
|
assertTrue(q.offer(four)); |
992 |
|
|
993 |
|
Thread t = newStartedThread(new CheckedRunnable() { |
994 |
< |
void realRun() throws InterruptedException { |
995 |
< |
threadAssertTrue(q.tryTransfer(five, |
996 |
< |
MEDIUM_DELAY_MS, MILLISECONDS)); |
997 |
< |
threadAssertTrue(q.isEmpty()); |
994 |
> |
public void realRun() throws InterruptedException { |
995 |
> |
long startTime = System.nanoTime(); |
996 |
> |
assertTrue(q.tryTransfer(five, LONG_DELAY_MS, MILLISECONDS)); |
997 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
998 |
> |
checkEmpty(q); |
999 |
|
}}); |
1000 |
|
|
1001 |
< |
Thread.sleep(SHORT_DELAY_MS); |
1002 |
< |
assertEquals(2, q.size()); |
1003 |
< |
assertEquals(four, q.poll()); |
1004 |
< |
assertEquals(five, q.poll()); |
1001 |
> |
while (q.size() != 2) |
1002 |
> |
Thread.yield(); |
1003 |
> |
mustEqual(2, q.size()); |
1004 |
> |
assertSame(four, q.poll()); |
1005 |
> |
assertSame(five, q.poll()); |
1006 |
|
checkEmpty(q); |
1007 |
< |
t.join(); |
1007 |
> |
awaitTermination(t); |
1008 |
|
} |
1009 |
|
|
1010 |
|
/** |
1011 |
< |
* tryTransfer attempts to enqueue into the q and fails returning |
1012 |
< |
* false not enqueueing and the successive poll is null |
1011 |
> |
* tryTransfer attempts to enqueue into the queue and fails |
1012 |
> |
* returning false not enqueueing and the successive poll is null |
1013 |
|
*/ |
1014 |
|
public void testTryTransfer8() throws InterruptedException { |
1015 |
< |
final LinkedTransferQueue q = new LinkedTransferQueue(); |
1015 |
> |
final LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
1016 |
|
assertTrue(q.offer(four)); |
1017 |
< |
assertEquals(1, q.size()); |
1018 |
< |
assertFalse(q.tryTransfer(five, SHORT_DELAY_MS, MILLISECONDS)); |
1019 |
< |
assertEquals(1, q.size()); |
1020 |
< |
assertEquals(four, q.poll()); |
1021 |
< |
checkEmpty(q); |
1017 |
> |
mustEqual(1, q.size()); |
1018 |
> |
long startTime = System.nanoTime(); |
1019 |
> |
assertFalse(q.tryTransfer(five, timeoutMillis(), MILLISECONDS)); |
1020 |
> |
assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
1021 |
> |
mustEqual(1, q.size()); |
1022 |
> |
assertSame(four, q.poll()); |
1023 |
|
assertNull(q.poll()); |
1024 |
+ |
checkEmpty(q); |
1025 |
|
} |
1026 |
|
|
1027 |
< |
private LinkedTransferQueue<Integer> populatedQueue(int n) { |
1028 |
< |
LinkedTransferQueue<Integer> q = new LinkedTransferQueue<Integer>(); |
1029 |
< |
assertTrue(q.isEmpty()); |
1027 |
> |
private LinkedTransferQueue<Item> populatedQueue(int n) { |
1028 |
> |
LinkedTransferQueue<Item> q = new LinkedTransferQueue<>(); |
1029 |
> |
checkEmpty(q); |
1030 |
|
for (int i = 0; i < n; i++) { |
1031 |
< |
assertEquals(i, q.size()); |
1032 |
< |
assertTrue(q.offer(i)); |
1033 |
< |
assertEquals(Integer.MAX_VALUE, q.remainingCapacity()); |
1031 |
> |
mustEqual(i, q.size()); |
1032 |
> |
mustOffer(q, i); |
1033 |
> |
mustEqual(Integer.MAX_VALUE, q.remainingCapacity()); |
1034 |
|
} |
1035 |
|
assertFalse(q.isEmpty()); |
1036 |
|
return q; |
1037 |
|
} |
1038 |
|
|
1039 |
< |
private static class ConsumerObserver { |
1040 |
< |
|
1041 |
< |
private int waitingConsumers; |
1042 |
< |
|
1043 |
< |
private ConsumerObserver() { |
1044 |
< |
} |
1045 |
< |
|
1046 |
< |
private void setWaitingConsumer(int i) { |
1047 |
< |
this.waitingConsumers = i; |
1048 |
< |
} |
1049 |
< |
|
1050 |
< |
private int getWaitingConsumers() { |
1152 |
< |
return waitingConsumers; |
1039 |
> |
/** |
1040 |
> |
* remove(null), contains(null) always return false |
1041 |
> |
*/ |
1042 |
> |
public void testNeverContainsNull() { |
1043 |
> |
Collection<?>[] qs = { |
1044 |
> |
new LinkedTransferQueue<>(), |
1045 |
> |
populatedQueue(2), |
1046 |
> |
}; |
1047 |
> |
|
1048 |
> |
for (Collection<?> q : qs) { |
1049 |
> |
assertFalse(q.contains(null)); |
1050 |
> |
assertFalse(q.remove(null)); |
1051 |
|
} |
1052 |
|
} |
1053 |
|
} |