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root/jsr166/jsr166/src/test/tck/LinkedListTest.java

Comparing jsr166/src/test/tck/LinkedListTest.java (file contents):
Revision 1.7 by dl, Sat Dec 27 19:26:43 2003 UTC vs.
Revision 1.13 by jsr166, Sat Nov 21 02:07:27 2009 UTC

#	Line 2 | Line 2
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4		* http://creativecommons.org/licenses/publicdomain
5	<	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	<	* Pat Fisher, Mike Judd.
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
#	Line 12 | Line 12 | import java.util.concurrent.*;
12
13		public class LinkedListTest extends JSR166TestCase {
14		public static void main(String[] args) {
15	<	junit.textui.TestRunner.run (suite());
15	>	junit.textui.TestRunner.run (suite());
16		}
17
18		public static Test suite() {
19	<	return new TestSuite(LinkedListTest.class);
19	>	return new TestSuite(LinkedListTest.class);
20		}
21
22		/**
#	Line 26 | Line 26 | public class LinkedListTest extends JSR1
26		private LinkedList populatedQueue(int n) {
27		LinkedList q = new LinkedList();
28		assertTrue(q.isEmpty());
29	<	for(int i = 0; i < n; ++i)
30	<	assertTrue(q.offer(new Integer(i)));
29	>	for (int i = 0; i < n; ++i)
30	>	assertTrue(q.offer(new Integer(i)));
31		assertFalse(q.isEmpty());
32	<	assertEquals(n, q.size());
32	>	assertEquals(n, q.size());
33		return q;
34		}
35	<
35	>
36		/**
37		* new queue is empty
38		*/
#	Line 100 | Line 100 | public class LinkedListTest extends JSR1
100		* offer(null) succeeds
101		*/
102		public void testOfferNull() {
103	<	try {
103	>	try {
104		LinkedList q = new LinkedList();
105		q.offer(null);
106	<	} catch (NullPointerException ie) {
106	>	} catch (NullPointerException ie) {
107		unexpectedException();
108	<	}
108	>	}
109		}
110
111		/**
112	<	* Offer succeeds
112	>	* Offer succeeds
113		*/
114		public void testOffer() {
115		LinkedList q = new LinkedList();
#	Line 162 | Line 162 | public class LinkedListTest extends JSR1
162		* addAll with too large an index throws IOOBE
163		*/
164		public void testAddAll2_IndexOutOfBoundsException() {
165	<	try {
166	<	LinkedList l = new LinkedList();
167	<	l.add(new Object());
168	<	LinkedList m = new LinkedList();
169	<	m.add(new Object());
170	<	l.addAll(4,m);
171	<	shouldThrow();
172	<	} catch(IndexOutOfBoundsException  success) {}
165	>	try {
166	>	LinkedList l = new LinkedList();
167	>	l.add(new Object());
168	>	LinkedList m = new LinkedList();
169	>	m.add(new Object());
170	>	l.addAll(4,m);
171	>	shouldThrow();
172	>	} catch (IndexOutOfBoundsException  success) {}
173		}
174
175		/**
176		* addAll with negative index throws IOOBE
177		*/
178		public void testAddAll4_BadIndex() {
179	<	try {
180	<	LinkedList l = new LinkedList();
181	<	l.add(new Object());
182	<	LinkedList m = new LinkedList();
183	<	m.add(new Object());
184	<	l.addAll(-1,m);
185	<	shouldThrow();
186	<	} catch(IndexOutOfBoundsException  success){}
179	>	try {
180	>	LinkedList l = new LinkedList();
181	>	l.add(new Object());
182	>	LinkedList m = new LinkedList();
183	>	m.add(new Object());
184	>	l.addAll(-1,m);
185	>	shouldThrow();
186	>	} catch (IndexOutOfBoundsException  success) {}
187		}
188
189		/**
#	Line 194 | Line 194 | public class LinkedListTest extends JSR1
194		for (int i = 0; i < SIZE; ++i) {
195		assertEquals(i, ((Integer)q.poll()).intValue());
196		}
197	<	assertNull(q.poll());
197	>	assertNull(q.poll());
198		}
199
200		/**
#	Line 208 | Line 208 | public class LinkedListTest extends JSR1
208		assertTrue(q.peek() == null ||
209		i != ((Integer)q.peek()).intValue());
210		}
211	<	assertNull(q.peek());
211	>	assertNull(q.peek());
212		}
213
214		/**
#	Line 238 | Line 238 | public class LinkedListTest extends JSR1
238		try {
239		q.remove();
240		shouldThrow();
241	<	} catch (NoSuchElementException success){
242	<	}
241	>	} catch (NoSuchElementException success) {
242	>	}
243		}
244
245		/**
#	Line 256 | Line 256 | public class LinkedListTest extends JSR1
256		}
257		assertTrue(q.isEmpty());
258		}
259	<
259	>
260		/**
261		* contains(x) reports true when elements added but not yet removed
262		*/
#	Line 337 | Line 337 | public class LinkedListTest extends JSR1
337		*/
338		public void testToArray() {
339		LinkedList q = populatedQueue(SIZE);
340	<	Object[] o = q.toArray();
340	>	Object[] o = q.toArray();
341		Arrays.sort(o);
342	<	for(int i = 0; i < o.length; i++)
343	<	assertEquals(o[i], q.poll());
342	>	for (int i = 0; i < o.length; i++)
343	>	assertEquals(o[i], q.poll());
344		}
345
346		/**
#	Line 348 | Line 348 | public class LinkedListTest extends JSR1
348		*/
349		public void testToArray2() {
350		LinkedList q = populatedQueue(SIZE);
351	<	Integer[] ints = new Integer[SIZE];
352	<	ints = (Integer[])q.toArray(ints);
351	>	Integer[] ints = new Integer[SIZE];
352	>	ints = (Integer[])q.toArray(ints);
353		Arrays.sort(ints);
354	<	for(int i = 0; i < ints.length; i++)
354	>	for (int i = 0; i < ints.length; i++)
355		assertEquals(ints[i], q.poll());
356		}
357
#	Line 359 | Line 359 | public class LinkedListTest extends JSR1
359		* toArray(null) throws NPE
360		*/
361		public void testToArray_BadArg() {
362	<	try {
363	<	LinkedList l = new LinkedList();
364	<	l.add(new Object());
365	<	Object o[] = l.toArray(null);
366	<	shouldThrow();
367	<	} catch(NullPointerException success){}
362	>	try {
363	>	LinkedList l = new LinkedList();
364	>	l.add(new Object());
365	>	Object o[] = l.toArray(null);
366	>	shouldThrow();
367	>	} catch (NullPointerException success) {}
368		}
369
370		/**
371		* toArray with incompatable aray type throws CCE
372		*/
373		public void testToArray1_BadArg() {
374	<	try {
375	<	LinkedList l = new LinkedList();
376	<	l.add(new Integer(5));
377	<	Object o[] = l.toArray(new String[10] );
378	<	shouldThrow();
379	<	} catch(ArrayStoreException  success){}
374	>	try {
375	>	LinkedList l = new LinkedList();
376	>	l.add(new Integer(5));
377	>	Object o[] = l.toArray(new String[10] );
378	>	shouldThrow();
379	>	} catch (ArrayStoreException  success) {}
380		}
381	<
381	>
382		/**
383		*  iterator iterates through all elements
384		*/
385		public void testIterator() {
386		LinkedList q = populatedQueue(SIZE);
387		int i = 0;
388	<	Iterator it = q.iterator();
389	<	while(it.hasNext()) {
388	>	Iterator it = q.iterator();
389	>	while (it.hasNext()) {
390		assertTrue(q.contains(it.next()));
391		++i;
392		}
#	Line 427 | Line 427 | public class LinkedListTest extends JSR1
427		assertFalse(it.hasNext());
428		}
429
430	+	/**
431	+	*  Descending iterator iterates through all elements
432	+	*/
433	+	public void testDescendingIterator() {
434	+	LinkedList q = populatedQueue(SIZE);
435	+	int i = 0;
436	+	Iterator it = q.descendingIterator();
437	+	while (it.hasNext()) {
438	+	assertTrue(q.contains(it.next()));
439	+	++i;
440	+	}
441	+	assertEquals(i, SIZE);
442	+	assertFalse(it.hasNext());
443	+	try {
444	+	it.next();
445	+	} catch (NoSuchElementException success) {
446	+	}
447	+	}
448	+
449	+	/**
450	+	*  Descending iterator ordering is reverse FIFO
451	+	*/
452	+	public void testDescendingIteratorOrdering() {
453	+	final LinkedList q = new LinkedList();
454	+	q.add(new Integer(3));
455	+	q.add(new Integer(2));
456	+	q.add(new Integer(1));
457	+	int k = 0;
458	+	for (Iterator it = q.descendingIterator(); it.hasNext();) {
459	+	int i = ((Integer)(it.next())).intValue();
460	+	assertEquals(++k, i);
461	+	}
462	+
463	+	assertEquals(3, k);
464	+	}
465	+
466	+	/**
467	+	* descendingIterator.remove removes current element
468	+	*/
469	+	public void testDescendingIteratorRemove () {
470	+	final LinkedList q = new LinkedList();
471	+	q.add(new Integer(3));
472	+	q.add(new Integer(2));
473	+	q.add(new Integer(1));
474	+	Iterator it = q.descendingIterator();
475	+	it.next();
476	+	it.remove();
477	+	it = q.descendingIterator();
478	+	assertEquals(it.next(), new Integer(2));
479	+	assertEquals(it.next(), new Integer(3));
480	+	assertFalse(it.hasNext());
481	+	}
482	+
483
484		/**
485		* toString contains toStrings of elements
#	Line 437 | Line 490 | public class LinkedListTest extends JSR1
490		for (int i = 0; i < SIZE; ++i) {
491		assertTrue(s.indexOf(String.valueOf(i)) >= 0);
492		}
493	<	}
493	>	}
494
495		/**
496		* peek returns element inserted with addFirst
497		*/
498		public void testAddFirst() {
499		LinkedList q = populatedQueue(3);
500	<	q.addFirst(four);
501	<	assertEquals(four,q.peek());
502	<	}
500	>	q.addFirst(four);
501	>	assertEquals(four,q.peek());
502	>	}
503	>
504	>	/**
505	>	* peekFirst returns element inserted with push
506	>	*/
507	>	public void testPush() {
508	>	LinkedList q = populatedQueue(3);
509	>	q.pollLast();
510	>	q.push(four);
511	>	assertEquals(four,q.peekFirst());
512	>	}
513	>
514	>	/**
515	>	*  pop removes next element, or throws NSEE if empty
516	>	*/
517	>	public void testPop() {
518	>	LinkedList q = populatedQueue(SIZE);
519	>	for (int i = 0; i < SIZE; ++i) {
520	>	assertEquals(i, ((Integer)q.pop()).intValue());
521	>	}
522	>	try {
523	>	q.pop();
524	>	shouldThrow();
525	>	} catch (NoSuchElementException success) {
526	>	}
527	>	}
528	>
529	>	/**
530	>	* OfferFirst succeeds
531	>	*/
532	>	public void testOfferFirst() {
533	>	LinkedList q = new LinkedList();
534	>	assertTrue(q.offerFirst(new Integer(0)));
535	>	assertTrue(q.offerFirst(new Integer(1)));
536	>	}
537	>
538	>	/**
539	>	* OfferLast succeeds
540	>	*/
541	>	public void testOfferLast() {
542	>	LinkedList q = new LinkedList();
543	>	assertTrue(q.offerLast(new Integer(0)));
544	>	assertTrue(q.offerLast(new Integer(1)));
545	>	}
546	>
547	>	/**
548	>	*  pollLast succeeds unless empty
549	>	*/
550	>	public void testPollLast() {
551	>	LinkedList q = populatedQueue(SIZE);
552	>	for (int i = SIZE-1; i >= 0; --i) {
553	>	assertEquals(i, ((Integer)q.pollLast()).intValue());
554	>	}
555	>	assertNull(q.pollLast());
556	>	}
557	>
558	>	/**
559	>	*  peekFirst returns next element, or null if empty
560	>	*/
561	>	public void testPeekFirst() {
562	>	LinkedList q = populatedQueue(SIZE);
563	>	for (int i = 0; i < SIZE; ++i) {
564	>	assertEquals(i, ((Integer)q.peekFirst()).intValue());
565	>	q.pollFirst();
566	>	assertTrue(q.peekFirst() == null ||
567	>	i != ((Integer)q.peekFirst()).intValue());
568	>	}
569	>	assertNull(q.peekFirst());
570	>	}
571	>
572	>
573	>	/**
574	>	*  peekLast returns next element, or null if empty
575	>	*/
576	>	public void testPeekLast() {
577	>	LinkedList q = populatedQueue(SIZE);
578	>	for (int i = SIZE-1; i >= 0; --i) {
579	>	assertEquals(i, ((Integer)q.peekLast()).intValue());
580	>	q.pollLast();
581	>	assertTrue(q.peekLast() == null ||
582	>	i != ((Integer)q.peekLast()).intValue());
583	>	}
584	>	assertNull(q.peekLast());
585	>	}
586	>
587	>	public void testFirstElement() {
588	>	LinkedList q = populatedQueue(SIZE);
589	>	for (int i = 0; i < SIZE; ++i) {
590	>	assertEquals(i, ((Integer)q.getFirst()).intValue());
591	>	q.pollFirst();
592	>	}
593	>	try {
594	>	q.getFirst();
595	>	shouldThrow();
596	>	}
597	>	catch (NoSuchElementException success) {}
598	>	}
599	>
600	>	/**
601	>	*  getLast returns next element, or throws NSEE if empty
602	>	*/
603	>	public void testLastElement() {
604	>	LinkedList q = populatedQueue(SIZE);
605	>	for (int i = SIZE-1; i >= 0; --i) {
606	>	assertEquals(i, ((Integer)q.getLast()).intValue());
607	>	q.pollLast();
608	>	}
609	>	try {
610	>	q.getLast();
611	>	shouldThrow();
612	>	}
613	>	catch (NoSuchElementException success) {}
614	>	assertNull(q.peekLast());
615	>	}
616	>
617	>	/**
618	>	* removeFirstOccurrence(x) removes x and returns true if present
619	>	*/
620	>	public void testRemoveFirstOccurrence() {
621	>	LinkedList q = populatedQueue(SIZE);
622	>	for (int i = 1; i < SIZE; i+=2) {
623	>	assertTrue(q.removeFirstOccurrence(new Integer(i)));
624	>	}
625	>	for (int i = 0; i < SIZE; i+=2) {
626	>	assertTrue(q.removeFirstOccurrence(new Integer(i)));
627	>	assertFalse(q.removeFirstOccurrence(new Integer(i+1)));
628	>	}
629	>	assertTrue(q.isEmpty());
630	>	}
631	>
632	>	/**
633	>	* removeLastOccurrence(x) removes x and returns true if present
634	>	*/
635	>	public void testRemoveLastOccurrence() {
636	>	LinkedList q = populatedQueue(SIZE);
637	>	for (int i = 1; i < SIZE; i+=2) {
638	>	assertTrue(q.removeLastOccurrence(new Integer(i)));
639	>	}
640	>	for (int i = 0; i < SIZE; i+=2) {
641	>	assertTrue(q.removeLastOccurrence(new Integer(i)));
642	>	assertFalse(q.removeLastOccurrence(new Integer(i+1)));
643	>	}
644	>	assertTrue(q.isEmpty());
645	>	}
646
647		}

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