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Comparing jsr166/src/test/tck/CopyOnWriteArrayListTest.java (file contents):
Revision 1.26 by jsr166, Tue Nov 29 05:23:56 2011 UTC vs.
Revision 1.38 by jsr166, Wed Aug 10 01:28:14 2016 UTC

# Line 6 | Line 6
6   * Pat Fisher, Mike Judd.
7   */
8  
9 < import junit.framework.*;
9 > import java.util.ArrayList;
10   import java.util.Arrays;
11   import java.util.Collection;
12   import java.util.Collections;
# Line 14 | Line 14 | import java.util.Iterator;
14   import java.util.LinkedList;
15   import java.util.List;
16   import java.util.ListIterator;
17 < import java.util.Vector;
17 > import java.util.NoSuchElementException;
18   import java.util.concurrent.CopyOnWriteArrayList;
19  
20 + import junit.framework.Test;
21 + import junit.framework.TestSuite;
22 +
23   public class CopyOnWriteArrayListTest extends JSR166TestCase {
24  
25      public static void main(String[] args) {
26 <        junit.textui.TestRunner.run(suite());
26 >        main(suite(), args);
27      }
28  
29      public static Test suite() {
# Line 60 | Line 63 | public class CopyOnWriteArrayListTest ex
63       */
64      public void testConstructor2() {
65          Integer[] ints = new Integer[SIZE];
66 <        for (int i = 0; i < SIZE-1; ++i)
66 >        for (int i = 0; i < SIZE - 1; ++i)
67              ints[i] = new Integer(i);
68          CopyOnWriteArrayList a = new CopyOnWriteArrayList(ints);
69          for (int i = 0; i < SIZE; ++i)
# Line 72 | Line 75 | public class CopyOnWriteArrayListTest ex
75       */
76      public void testConstructor3() {
77          Integer[] ints = new Integer[SIZE];
78 <        for (int i = 0; i < SIZE-1; ++i)
78 >        for (int i = 0; i < SIZE - 1; ++i)
79              ints[i] = new Integer(i);
80          CopyOnWriteArrayList a = new CopyOnWriteArrayList(Arrays.asList(ints));
81          for (int i = 0; i < SIZE; ++i)
# Line 80 | Line 83 | public class CopyOnWriteArrayListTest ex
83      }
84  
85      /**
86 <     * addAll adds each element from the given collection
86 >     * addAll adds each element from the given collection, including duplicates
87       */
88      public void testAddAll() {
89          CopyOnWriteArrayList full = populatedArray(3);
90 <        Vector v = new Vector();
88 <        v.add(three);
89 <        v.add(four);
90 <        v.add(five);
91 <        full.addAll(v);
90 >        assertTrue(full.addAll(Arrays.asList(three, four, five)));
91          assertEquals(6, full.size());
92 +        assertTrue(full.addAll(Arrays.asList(three, four, five)));
93 +        assertEquals(9, full.size());
94      }
95  
96      /**
# Line 98 | Line 99 | public class CopyOnWriteArrayListTest ex
99       */
100      public void testAddAllAbsent() {
101          CopyOnWriteArrayList full = populatedArray(3);
102 <        Vector v = new Vector();
103 <        v.add(three);
104 <        v.add(four);
105 <        v.add(one); // will not add this element
105 <        full.addAllAbsent(v);
102 >        // "one" is duplicate and will not be added
103 >        assertEquals(2, full.addAllAbsent(Arrays.asList(three, four, one)));
104 >        assertEquals(5, full.size());
105 >        assertEquals(0, full.addAllAbsent(Arrays.asList(three, four, one)));
106          assertEquals(5, full.size());
107      }
108  
# Line 177 | Line 177 | public class CopyOnWriteArrayListTest ex
177          CopyOnWriteArrayList b = populatedArray(3);
178          assertTrue(a.equals(b));
179          assertTrue(b.equals(a));
180 +        assertTrue(a.containsAll(b));
181 +        assertTrue(b.containsAll(a));
182          assertEquals(a.hashCode(), b.hashCode());
183          a.add(m1);
184          assertFalse(a.equals(b));
185          assertFalse(b.equals(a));
186 +        assertTrue(a.containsAll(b));
187 +        assertFalse(b.containsAll(a));
188          b.add(m1);
189          assertTrue(a.equals(b));
190          assertTrue(b.equals(a));
191 +        assertTrue(a.containsAll(b));
192 +        assertTrue(b.containsAll(a));
193          assertEquals(a.hashCode(), b.hashCode());
194 +
195 +        assertFalse(a.equals(null));
196      }
197  
198      /**
199 <     * containsAll returns true for collection with subset of elements
199 >     * containsAll returns true for collections with subset of elements
200       */
201      public void testContainsAll() {
202          CopyOnWriteArrayList full = populatedArray(3);
203 <        Vector v = new Vector();
204 <        v.add(one);
205 <        v.add(two);
206 <        assertTrue(full.containsAll(v));
207 <        v.add(six);
208 <        assertFalse(full.containsAll(v));
203 >        assertTrue(full.containsAll(Arrays.asList()));
204 >        assertTrue(full.containsAll(Arrays.asList(one)));
205 >        assertTrue(full.containsAll(Arrays.asList(one, two)));
206 >        assertFalse(full.containsAll(Arrays.asList(one, two, six)));
207 >        assertFalse(full.containsAll(Arrays.asList(six)));
208 >
209 >        try {
210 >            full.containsAll(null);
211 >            shouldThrow();
212 >        } catch (NullPointerException success) {}
213      }
214  
215      /**
# Line 238 | Line 250 | public class CopyOnWriteArrayListTest ex
250      }
251  
252      /**
253 <     * iterator() returns an iterator containing the elements of the list
253 >     * iterator() returns an iterator containing the elements of the
254 >     * list in insertion order
255       */
256      public void testIterator() {
257 <        CopyOnWriteArrayList full = populatedArray(SIZE);
258 <        Iterator i = full.iterator();
259 <        int j;
260 <        for (j = 0; i.hasNext(); j++)
261 <            assertEquals(j, i.next());
262 <        assertEquals(SIZE, j);
257 >        Collection empty = new CopyOnWriteArrayList();
258 >        assertFalse(empty.iterator().hasNext());
259 >        try {
260 >            empty.iterator().next();
261 >            shouldThrow();
262 >        } catch (NoSuchElementException success) {}
263 >
264 >        Integer[] elements = new Integer[SIZE];
265 >        for (int i = 0; i < SIZE; i++)
266 >            elements[i] = i;
267 >        shuffle(elements);
268 >        Collection<Integer> full = populatedArray(elements);
269 >
270 >        Iterator it = full.iterator();
271 >        for (int j = 0; j < SIZE; j++) {
272 >            assertTrue(it.hasNext());
273 >            assertEquals(elements[j], it.next());
274 >        }
275 >        assertIteratorExhausted(it);
276 >    }
277 >
278 >    /**
279 >     * iterator of empty collection has no elements
280 >     */
281 >    public void testEmptyIterator() {
282 >        Collection c = new CopyOnWriteArrayList();
283 >        assertIteratorExhausted(c.iterator());
284      }
285  
286      /**
# Line 266 | Line 300 | public class CopyOnWriteArrayListTest ex
300       * toString contains toString of elements
301       */
302      public void testToString() {
303 +        assertEquals("[]", new CopyOnWriteArrayList().toString());
304          CopyOnWriteArrayList full = populatedArray(3);
305          String s = full.toString();
306 <        for (int i = 0; i < 3; ++i) {
306 >        for (int i = 0; i < 3; ++i)
307              assertTrue(s.contains(String.valueOf(i)));
308 <        }
308 >        assertEquals(new ArrayList(full).toString(),
309 >                     full.toString());
310      }
311  
312      /**
# Line 315 | Line 351 | public class CopyOnWriteArrayListTest ex
351          ListIterator i = full.listIterator(1);
352          int j;
353          for (j = 0; i.hasNext(); j++)
354 <            assertEquals(j+1, i.next());
354 >            assertEquals(j + 1, i.next());
355          assertEquals(2, j);
356      }
357  
358      /**
359 <     * remove removes and returns the object at the given index
359 >     * remove(int) removes and returns the object at the given index
360       */
361 <    public void testRemove() {
362 <        CopyOnWriteArrayList full = populatedArray(3);
363 <        assertEquals(2, full.remove(2));
364 <        assertEquals(2, full.size());
361 >    public void testRemove_int() {
362 >        int SIZE = 3;
363 >        for (int i = 0; i < SIZE; i++) {
364 >            CopyOnWriteArrayList full = populatedArray(SIZE);
365 >            assertEquals(i, full.remove(i));
366 >            assertEquals(SIZE - 1, full.size());
367 >            assertFalse(full.contains(new Integer(i)));
368 >        }
369 >    }
370 >
371 >    /**
372 >     * remove(Object) removes the object if found and returns true
373 >     */
374 >    public void testRemove_Object() {
375 >        int SIZE = 3;
376 >        for (int i = 0; i < SIZE; i++) {
377 >            CopyOnWriteArrayList full = populatedArray(SIZE);
378 >            assertFalse(full.remove(new Integer(-42)));
379 >            assertTrue(full.remove(new Integer(i)));
380 >            assertEquals(SIZE - 1, full.size());
381 >            assertFalse(full.contains(new Integer(i)));
382 >        }
383 >        CopyOnWriteArrayList x = new CopyOnWriteArrayList(Arrays.asList(4, 5, 6));
384 >        assertTrue(x.remove(new Integer(6)));
385 >        assertEquals(x, Arrays.asList(4, 5));
386 >        assertTrue(x.remove(new Integer(4)));
387 >        assertEquals(x, Arrays.asList(5));
388 >        assertTrue(x.remove(new Integer(5)));
389 >        assertEquals(x, Arrays.asList());
390 >        assertFalse(x.remove(new Integer(5)));
391      }
392  
393      /**
# Line 333 | Line 395 | public class CopyOnWriteArrayListTest ex
395       */
396      public void testRemoveAll() {
397          CopyOnWriteArrayList full = populatedArray(3);
398 <        Vector v = new Vector();
399 <        v.add(one);
400 <        v.add(two);
339 <        full.removeAll(v);
398 >        assertTrue(full.removeAll(Arrays.asList(one, two)));
399 >        assertEquals(1, full.size());
400 >        assertFalse(full.removeAll(Arrays.asList(one, two)));
401          assertEquals(1, full.size());
402      }
403  
# Line 371 | Line 432 | public class CopyOnWriteArrayListTest ex
432          Integer[] elements = new Integer[SIZE];
433          for (int i = 0; i < SIZE; i++)
434              elements[i] = i;
435 <        Collections.shuffle(Arrays.asList(elements));
435 >        shuffle(elements);
436          Collection<Integer> full = populatedArray(elements);
437  
438          assertTrue(Arrays.equals(elements, full.toArray()));
# Line 389 | Line 450 | public class CopyOnWriteArrayListTest ex
450          a = new Integer[0];
451          assertSame(a, empty.toArray(a));
452  
453 <        a = new Integer[SIZE/2];
453 >        a = new Integer[SIZE / 2];
454          Arrays.fill(a, 42);
455          assertSame(a, empty.toArray(a));
456          assertNull(a[0]);
# Line 399 | Line 460 | public class CopyOnWriteArrayListTest ex
460          Integer[] elements = new Integer[SIZE];
461          for (int i = 0; i < SIZE; i++)
462              elements[i] = i;
463 <        Collections.shuffle(Arrays.asList(elements));
463 >        shuffle(elements);
464          Collection<Integer> full = populatedArray(elements);
465  
466          Arrays.fill(a, 42);
# Line 413 | Line 474 | public class CopyOnWriteArrayListTest ex
474          assertSame(a, full.toArray(a));
475          assertTrue(Arrays.equals(elements, a));
476  
477 <        a = new Integer[2*SIZE];
477 >        a = new Integer[2 * SIZE];
478          Arrays.fill(a, 42);
479          assertSame(a, full.toArray(a));
480          assertTrue(Arrays.equals(elements, Arrays.copyOf(a, SIZE)));
# Line 452 | Line 513 | public class CopyOnWriteArrayListTest ex
513       * can not store the objects inside the list
514       */
515      public void testToArray_ArrayStoreException() {
516 +        CopyOnWriteArrayList c = new CopyOnWriteArrayList();
517 +        c.add("zfasdfsdf");
518 +        c.add("asdadasd");
519          try {
456            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
457            c.add("zfasdfsdf");
458            c.add("asdadasd");
520              c.toArray(new Long[5]);
521              shouldThrow();
522          } catch (ArrayStoreException success) {}
# Line 465 | Line 526 | public class CopyOnWriteArrayListTest ex
526       * get throws an IndexOutOfBoundsException on a negative index
527       */
528      public void testGet1_IndexOutOfBoundsException() {
529 <        try {
530 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
531 <            c.get(-1);
532 <            shouldThrow();
533 <        } catch (IndexOutOfBoundsException success) {}
529 >        CopyOnWriteArrayList c = populatedArray(5);
530 >        List[] lists = { c, c.subList(1, c.size() - 1) };
531 >        for (List list : lists) {
532 >            try {
533 >                list.get(-1);
534 >                shouldThrow();
535 >            } catch (IndexOutOfBoundsException success) {}
536 >        }
537      }
538  
539      /**
540       * get throws an IndexOutOfBoundsException on a too high index
541       */
542      public void testGet2_IndexOutOfBoundsException() {
543 <        try {
544 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
545 <            c.add("asdasd");
546 <            c.add("asdad");
547 <            c.get(100);
548 <            shouldThrow();
549 <        } catch (IndexOutOfBoundsException success) {}
543 >        CopyOnWriteArrayList c = populatedArray(5);
544 >        List[] lists = { c, c.subList(1, c.size() - 1) };
545 >        for (List list : lists) {
546 >            try {
547 >                list.get(list.size());
548 >                shouldThrow();
549 >            } catch (IndexOutOfBoundsException success) {}
550 >        }
551      }
552  
553      /**
554       * set throws an IndexOutOfBoundsException on a negative index
555       */
556      public void testSet1_IndexOutOfBoundsException() {
557 <        try {
558 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
559 <            c.set(-1,"qwerty");
560 <            shouldThrow();
561 <        } catch (IndexOutOfBoundsException success) {}
557 >        CopyOnWriteArrayList c = populatedArray(5);
558 >        List[] lists = { c, c.subList(1, c.size() - 1) };
559 >        for (List list : lists) {
560 >            try {
561 >                list.set(-1, "qwerty");
562 >                shouldThrow();
563 >            } catch (IndexOutOfBoundsException success) {}
564 >        }
565      }
566  
567      /**
568       * set throws an IndexOutOfBoundsException on a too high index
569       */
570      public void testSet2() {
571 <        try {
572 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
573 <            c.add("asdasd");
574 <            c.add("asdad");
575 <            c.set(100, "qwerty");
576 <            shouldThrow();
577 <        } catch (IndexOutOfBoundsException success) {}
571 >        CopyOnWriteArrayList c = populatedArray(5);
572 >        List[] lists = { c, c.subList(1, c.size() - 1) };
573 >        for (List list : lists) {
574 >            try {
575 >                list.set(list.size(), "qwerty");
576 >                shouldThrow();
577 >            } catch (IndexOutOfBoundsException success) {}
578 >        }
579      }
580  
581      /**
582       * add throws an IndexOutOfBoundsException on a negative index
583       */
584      public void testAdd1_IndexOutOfBoundsException() {
585 <        try {
586 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
587 <            c.add(-1,"qwerty");
588 <            shouldThrow();
589 <        } catch (IndexOutOfBoundsException success) {}
585 >        CopyOnWriteArrayList c = populatedArray(5);
586 >        List[] lists = { c, c.subList(1, c.size() - 1) };
587 >        for (List list : lists) {
588 >            try {
589 >                list.add(-1, "qwerty");
590 >                shouldThrow();
591 >            } catch (IndexOutOfBoundsException success) {}
592 >        }
593      }
594  
595      /**
596       * add throws an IndexOutOfBoundsException on a too high index
597       */
598      public void testAdd2_IndexOutOfBoundsException() {
599 <        try {
600 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
601 <            c.add("asdasd");
602 <            c.add("asdasdasd");
603 <            c.add(100, "qwerty");
604 <            shouldThrow();
605 <        } catch (IndexOutOfBoundsException success) {}
599 >        CopyOnWriteArrayList c = populatedArray(5);
600 >        List[] lists = { c, c.subList(1, c.size() - 1) };
601 >        for (List list : lists) {
602 >            try {
603 >                list.add(list.size() + 1, "qwerty");
604 >                shouldThrow();
605 >            } catch (IndexOutOfBoundsException success) {}
606 >        }
607      }
608  
609      /**
610       * remove throws an IndexOutOfBoundsException on a negative index
611       */
612      public void testRemove1_IndexOutOfBounds() {
613 <        try {
614 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
615 <            c.remove(-1);
616 <            shouldThrow();
617 <        } catch (IndexOutOfBoundsException success) {}
613 >        CopyOnWriteArrayList c = populatedArray(5);
614 >        List[] lists = { c, c.subList(1, c.size() - 1) };
615 >        for (List list : lists) {
616 >            try {
617 >                list.remove(-1);
618 >                shouldThrow();
619 >            } catch (IndexOutOfBoundsException success) {}
620 >        }
621      }
622  
623      /**
624       * remove throws an IndexOutOfBoundsException on a too high index
625       */
626      public void testRemove2_IndexOutOfBounds() {
627 <        try {
628 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
629 <            c.add("asdasd");
630 <            c.add("adasdasd");
631 <            c.remove(100);
632 <            shouldThrow();
633 <        } catch (IndexOutOfBoundsException success) {}
627 >        CopyOnWriteArrayList c = populatedArray(5);
628 >        List[] lists = { c, c.subList(1, c.size() - 1) };
629 >        for (List list : lists) {
630 >            try {
631 >                list.remove(list.size());
632 >                shouldThrow();
633 >            } catch (IndexOutOfBoundsException success) {}
634 >        }
635      }
636  
637      /**
638       * addAll throws an IndexOutOfBoundsException on a negative index
639       */
640      public void testAddAll1_IndexOutOfBoundsException() {
641 <        try {
642 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
643 <            c.addAll(-1,new LinkedList());
644 <            shouldThrow();
645 <        } catch (IndexOutOfBoundsException success) {}
641 >        CopyOnWriteArrayList c = populatedArray(5);
642 >        List[] lists = { c, c.subList(1, c.size() - 1) };
643 >        for (List list : lists) {
644 >            try {
645 >                list.addAll(-1, new LinkedList());
646 >                shouldThrow();
647 >            } catch (IndexOutOfBoundsException success) {}
648 >        }
649      }
650  
651      /**
652       * addAll throws an IndexOutOfBoundsException on a too high index
653       */
654      public void testAddAll2_IndexOutOfBoundsException() {
655 <        try {
656 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
657 <            c.add("asdasd");
658 <            c.add("asdasdasd");
659 <            c.addAll(100, new LinkedList());
660 <            shouldThrow();
661 <        } catch (IndexOutOfBoundsException success) {}
655 >        CopyOnWriteArrayList c = populatedArray(5);
656 >        List[] lists = { c, c.subList(1, c.size() - 1) };
657 >        for (List list : lists) {
658 >            try {
659 >                list.addAll(list.size() + 1, new LinkedList());
660 >                shouldThrow();
661 >            } catch (IndexOutOfBoundsException success) {}
662 >        }
663      }
664  
665      /**
666       * listIterator throws an IndexOutOfBoundsException on a negative index
667       */
668      public void testListIterator1_IndexOutOfBoundsException() {
669 <        try {
670 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
671 <            c.listIterator(-1);
672 <            shouldThrow();
673 <        } catch (IndexOutOfBoundsException success) {}
669 >        CopyOnWriteArrayList c = populatedArray(5);
670 >        List[] lists = { c, c.subList(1, c.size() - 1) };
671 >        for (List list : lists) {
672 >            try {
673 >                list.listIterator(-1);
674 >                shouldThrow();
675 >            } catch (IndexOutOfBoundsException success) {}
676 >        }
677      }
678  
679      /**
680       * listIterator throws an IndexOutOfBoundsException on a too high index
681       */
682      public void testListIterator2_IndexOutOfBoundsException() {
683 <        try {
684 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
685 <            c.add("adasd");
686 <            c.add("asdasdas");
687 <            c.listIterator(100);
688 <            shouldThrow();
689 <        } catch (IndexOutOfBoundsException success) {}
683 >        CopyOnWriteArrayList c = populatedArray(5);
684 >        List[] lists = { c, c.subList(1, c.size() - 1) };
685 >        for (List list : lists) {
686 >            try {
687 >                list.listIterator(list.size() + 1);
688 >                shouldThrow();
689 >            } catch (IndexOutOfBoundsException success) {}
690 >        }
691      }
692  
693      /**
694       * subList throws an IndexOutOfBoundsException on a negative index
695       */
696      public void testSubList1_IndexOutOfBoundsException() {
697 <        try {
698 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
699 <            c.subList(-1,100);
700 <            shouldThrow();
701 <        } catch (IndexOutOfBoundsException success) {}
697 >        CopyOnWriteArrayList c = populatedArray(5);
698 >        List[] lists = { c, c.subList(1, c.size() - 1) };
699 >        for (List list : lists) {
700 >            try {
701 >                list.subList(-1, list.size());
702 >                shouldThrow();
703 >            } catch (IndexOutOfBoundsException success) {}
704 >        }
705      }
706  
707      /**
708       * subList throws an IndexOutOfBoundsException on a too high index
709       */
710      public void testSubList2_IndexOutOfBoundsException() {
711 <        try {
712 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
713 <            c.add("asdasd");
714 <            c.subList(1,100);
715 <            shouldThrow();
716 <        } catch (IndexOutOfBoundsException success) {}
711 >        CopyOnWriteArrayList c = populatedArray(5);
712 >        List[] lists = { c, c.subList(1, c.size() - 1) };
713 >        for (List list : lists) {
714 >            try {
715 >                list.subList(0, list.size() + 1);
716 >                shouldThrow();
717 >            } catch (IndexOutOfBoundsException success) {}
718 >        }
719      }
720  
721      /**
# Line 633 | Line 723 | public class CopyOnWriteArrayListTest ex
723       * is lower then the first
724       */
725      public void testSubList3_IndexOutOfBoundsException() {
726 <        try {
727 <            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
728 <            c.subList(3,1);
729 <            shouldThrow();
730 <        } catch (IndexOutOfBoundsException success) {}
726 >        CopyOnWriteArrayList c = populatedArray(5);
727 >        List[] lists = { c, c.subList(1, c.size() - 1) };
728 >        for (List list : lists) {
729 >            try {
730 >                list.subList(list.size() - 1, 1);
731 >                shouldThrow();
732 >            } catch (IndexOutOfBoundsException success) {}
733 >        }
734      }
735  
736      /**
# Line 647 | Line 740 | public class CopyOnWriteArrayListTest ex
740          List x = populatedArray(SIZE);
741          List y = serialClone(x);
742  
743 <        assertTrue(x != y);
743 >        assertNotSame(x, y);
744          assertEquals(x.size(), y.size());
745          assertEquals(x.toString(), y.toString());
746          assertTrue(Arrays.equals(x.toArray(), y.toArray()));

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