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Comparing jsr166/src/test/tck/TreeSubSetTest.java (file contents):
Revision 1.8 by jsr166, Sat Nov 21 02:07:27 2009 UTC vs.
Revision 1.20 by jsr166, Tue May 31 16:16:24 2011 UTC

# Line 1 | Line 1
1   /*
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
4 > * http://creativecommons.org/publicdomain/zero/1.0/
5   */
6  
7   import junit.framework.*;
8 < import java.util.*;
9 < import java.util.concurrent.*;
10 < import java.io.*;
8 > import java.util.Arrays;
9 > import java.util.Comparator;
10 > import java.util.Iterator;
11 > import java.util.NavigableSet;
12 > import java.util.SortedSet;
13 > import java.util.TreeSet;
14  
15   public class TreeSubSetTest extends JSR166TestCase {
16      public static void main(String[] args) {
17 <        junit.textui.TestRunner.run (suite());
17 >        junit.textui.TestRunner.run(suite());
18      }
19      public static Test suite() {
20          return new TestSuite(TreeSubSetTest.class);
# Line 19 | Line 22 | public class TreeSubSetTest extends JSR1
22  
23      static class MyReverseComparator implements Comparator {
24          public int compare(Object x, Object y) {
25 <            int i = ((Integer)x).intValue();
23 <            int j = ((Integer)y).intValue();
24 <            if (i < j) return 1;
25 <            if (i > j) return -1;
26 <            return 0;
25 >            return ((Comparable)y).compareTo(x);
26          }
27      }
28  
# Line 31 | Line 30 | public class TreeSubSetTest extends JSR1
30       * Create a set of given size containing consecutive
31       * Integers 0 ... n.
32       */
33 <    private NavigableSet populatedSet(int n) {
34 <        TreeSet q = new TreeSet();
33 >    private NavigableSet<Integer> populatedSet(int n) {
34 >        TreeSet<Integer> q = new TreeSet<Integer>();
35          assertTrue(q.isEmpty());
36  
37          for (int i = n-1; i >= 0; i-=2)
# Line 97 | Line 96 | public class TreeSubSetTest extends JSR1
96          assertEquals(0, set0().size());
97      }
98  
100
99      /**
100       * isEmpty is true before add, false after
101       */
102      public void testEmpty() {
103          NavigableSet q = set0();
104          assertTrue(q.isEmpty());
105 <        q.add(new Integer(1));
105 >        assertTrue(q.add(new Integer(1)));
106          assertFalse(q.isEmpty());
107 <        q.add(new Integer(2));
107 >        assertTrue(q.add(new Integer(2)));
108          q.pollFirst();
109          q.pollFirst();
110          assertTrue(q.isEmpty());
# Line 168 | Line 166 | public class TreeSubSetTest extends JSR1
166          } catch (ClassCastException success) {}
167      }
168  
171
169      /**
170       * addAll(null) throws NPE
171       */
# Line 179 | Line 176 | public class TreeSubSetTest extends JSR1
176              shouldThrow();
177          } catch (NullPointerException success) {}
178      }
179 +
180      /**
181       * addAll of a collection with null elements throws NPE
182       */
# Line 190 | Line 188 | public class TreeSubSetTest extends JSR1
188              shouldThrow();
189          } catch (NullPointerException success) {}
190      }
191 +
192      /**
193       * addAll of a collection with any null elements throws NPE after
194       * possibly adding some elements
# Line 209 | Line 208 | public class TreeSubSetTest extends JSR1
208       * Set contains all elements of successful addAll
209       */
210      public void testAddAll5() {
211 <        try {
212 <            Integer[] empty = new Integer[0];
213 <            Integer[] ints = new Integer[SIZE];
214 <            for (int i = 0; i < SIZE; ++i)
215 <                ints[i] = new Integer(SIZE-1- i);
216 <            NavigableSet q = set0();
217 <            assertFalse(q.addAll(Arrays.asList(empty)));
218 <            assertTrue(q.addAll(Arrays.asList(ints)));
219 <            for (int i = 0; i < SIZE; ++i)
221 <                assertEquals(new Integer(i), q.pollFirst());
222 <        }
223 <        finally {}
211 >        Integer[] empty = new Integer[0];
212 >        Integer[] ints = new Integer[SIZE];
213 >        for (int i = 0; i < SIZE; ++i)
214 >            ints[i] = new Integer(SIZE-1- i);
215 >        NavigableSet q = set0();
216 >        assertFalse(q.addAll(Arrays.asList(empty)));
217 >        assertTrue(q.addAll(Arrays.asList(ints)));
218 >        for (int i = 0; i < SIZE; ++i)
219 >            assertEquals(new Integer(i), q.pollFirst());
220      }
221  
222      /**
# Line 229 | Line 225 | public class TreeSubSetTest extends JSR1
225      public void testPoll() {
226          NavigableSet q = populatedSet(SIZE);
227          for (int i = 0; i < SIZE; ++i) {
228 <            assertEquals(i, ((Integer)q.pollFirst()).intValue());
228 >            assertEquals(i, q.pollFirst());
229          }
230          assertNull(q.pollFirst());
231      }
# Line 240 | Line 236 | public class TreeSubSetTest extends JSR1
236      public void testRemoveElement() {
237          NavigableSet q = populatedSet(SIZE);
238          for (int i = 1; i < SIZE; i+=2) {
239 <            assertTrue(q.remove(new Integer(i)));
239 >            assertTrue(q.contains(i));
240 >            assertTrue(q.remove(i));
241 >            assertFalse(q.contains(i));
242 >            assertTrue(q.contains(i-1));
243          }
244          for (int i = 0; i < SIZE; i+=2) {
245 <            assertTrue(q.remove(new Integer(i)));
246 <            assertFalse(q.remove(new Integer(i+1)));
245 >            assertTrue(q.contains(i));
246 >            assertTrue(q.remove(i));
247 >            assertFalse(q.contains(i));
248 >            assertFalse(q.remove(i+1));
249 >            assertFalse(q.contains(i+1));
250          }
251          assertTrue(q.isEmpty());
252      }
# Line 269 | Line 271 | public class TreeSubSetTest extends JSR1
271          q.clear();
272          assertTrue(q.isEmpty());
273          assertEquals(0, q.size());
274 <        q.add(new Integer(1));
274 >        assertTrue(q.add(new Integer(1)));
275          assertFalse(q.isEmpty());
276          q.clear();
277          assertTrue(q.isEmpty());
# Line 324 | Line 326 | public class TreeSubSetTest extends JSR1
326          }
327      }
328  
327
328
329      /**
330       * lower returns preceding element
331       */
# Line 342 | Line 342 | public class TreeSubSetTest extends JSR1
342  
343          Object e4 = q.lower(zero);
344          assertNull(e4);
345
345      }
346  
347      /**
# Line 361 | Line 360 | public class TreeSubSetTest extends JSR1
360  
361          Object e4 = q.higher(six);
362          assertNull(e4);
364
363      }
364  
365      /**
# Line 380 | Line 378 | public class TreeSubSetTest extends JSR1
378  
379          Object e4 = q.floor(zero);
380          assertNull(e4);
383
381      }
382  
383      /**
# Line 399 | Line 396 | public class TreeSubSetTest extends JSR1
396  
397          Object e4 = q.ceiling(six);
398          assertNull(e4);
402
399      }
400  
401      /**
402 <     * toArray contains all elements
402 >     * toArray contains all elements in sorted order
403       */
404      public void testToArray() {
405          NavigableSet q = populatedSet(SIZE);
406          Object[] o = q.toArray();
411        Arrays.sort(o);
407          for (int i = 0; i < o.length; i++)
408 <            assertEquals(o[i], q.pollFirst());
408 >            assertSame(o[i], q.pollFirst());
409      }
410  
411      /**
412 <     * toArray(a) contains all elements
412 >     * toArray(a) contains all elements in sorted order
413       */
414      public void testToArray2() {
415 <        NavigableSet q = populatedSet(SIZE);
415 >        NavigableSet<Integer> q = populatedSet(SIZE);
416          Integer[] ints = new Integer[SIZE];
417 <        ints = (Integer[])q.toArray(ints);
418 <        Arrays.sort(ints);
417 >        Integer[] array = q.toArray(ints);
418 >        assertSame(ints, array);
419          for (int i = 0; i < ints.length; i++)
420 <            assertEquals(ints[i], q.pollFirst());
420 >            assertSame(ints[i], q.pollFirst());
421      }
422  
423      /**
# Line 456 | Line 451 | public class TreeSubSetTest extends JSR1
451      /**
452       * iterator.remove removes current element
453       */
454 <    public void testIteratorRemove () {
454 >    public void testIteratorRemove() {
455          final NavigableSet q = set0();
456          q.add(new Integer(2));
457          q.add(new Integer(1));
# Line 467 | Line 462 | public class TreeSubSetTest extends JSR1
462          it.remove();
463  
464          it = q.iterator();
465 <        assertEquals(it.next(), new Integer(2));
466 <        assertEquals(it.next(), new Integer(3));
465 >        assertEquals(it.next(), 2);
466 >        assertEquals(it.next(), 3);
467          assertFalse(it.hasNext());
468      }
469  
475
470      /**
471       * toString contains toStrings of elements
472       */
# Line 480 | Line 474 | public class TreeSubSetTest extends JSR1
474          NavigableSet q = populatedSet(SIZE);
475          String s = q.toString();
476          for (int i = 0; i < SIZE; ++i) {
477 <            assertTrue(s.indexOf(String.valueOf(i)) >= 0);
477 >            assertTrue(s.contains(String.valueOf(i)));
478          }
479      }
480  
# Line 488 | Line 482 | public class TreeSubSetTest extends JSR1
482       * A deserialized serialized set has same elements
483       */
484      public void testSerialization() throws Exception {
485 <        NavigableSet q = populatedSet(SIZE);
486 <        ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
487 <        ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
488 <        out.writeObject(q);
489 <        out.close();
490 <
491 <        ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
492 <        ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
493 <        NavigableSet r = (NavigableSet)in.readObject();
494 <        assertEquals(q.size(), r.size());
495 <        while (!q.isEmpty())
496 <            assertEquals(q.pollFirst(), r.pollFirst());
485 >        NavigableSet x = populatedSet(SIZE);
486 >        NavigableSet y = serialClone(x);
487 >
488 >        assertTrue(x != y);
489 >        assertEquals(x.size(), y.size());
490 >        assertEquals(x, y);
491 >        assertEquals(y, x);
492 >        while (!x.isEmpty()) {
493 >            assertFalse(y.isEmpty());
494 >            assertEquals(x.pollFirst(), y.pollFirst());
495 >        }
496 >        assertTrue(y.isEmpty());
497      }
498  
499      /**
# Line 666 | Line 660 | public class TreeSubSetTest extends JSR1
660          } catch (ClassCastException success) {}
661      }
662  
669
663      /**
664       * addAll(null) throws NPE
665       */
# Line 677 | Line 670 | public class TreeSubSetTest extends JSR1
670              shouldThrow();
671          } catch (NullPointerException success) {}
672      }
673 +
674      /**
675       * addAll of a collection with null elements throws NPE
676       */
# Line 688 | Line 682 | public class TreeSubSetTest extends JSR1
682              shouldThrow();
683          } catch (NullPointerException success) {}
684      }
685 +
686      /**
687       * addAll of a collection with any null elements throws NPE after
688       * possibly adding some elements
# Line 724 | Line 719 | public class TreeSubSetTest extends JSR1
719      public void testDescendingPoll() {
720          NavigableSet q = populatedSet(SIZE);
721          for (int i = 0; i < SIZE; ++i) {
722 <            assertEquals(i, ((Integer)q.pollFirst()).intValue());
722 >            assertEquals(i, q.pollFirst());
723          }
724          assertNull(q.pollFirst());
725      }
# Line 764 | Line 759 | public class TreeSubSetTest extends JSR1
759          q.clear();
760          assertTrue(q.isEmpty());
761          assertEquals(0, q.size());
762 <        q.add(new Integer(1));
762 >        assertTrue(q.add(new Integer(1)));
763          assertFalse(q.isEmpty());
764          q.clear();
765          assertTrue(q.isEmpty());
# Line 819 | Line 814 | public class TreeSubSetTest extends JSR1
814          }
815      }
816  
822
823
817      /**
818       * lower returns preceding element
819       */
# Line 837 | Line 830 | public class TreeSubSetTest extends JSR1
830  
831          Object e4 = q.lower(zero);
832          assertNull(e4);
840
833      }
834  
835      /**
# Line 856 | Line 848 | public class TreeSubSetTest extends JSR1
848  
849          Object e4 = q.higher(m6);
850          assertNull(e4);
859
851      }
852  
853      /**
# Line 875 | Line 866 | public class TreeSubSetTest extends JSR1
866  
867          Object e4 = q.floor(zero);
868          assertNull(e4);
878
869      }
870  
871      /**
# Line 894 | Line 884 | public class TreeSubSetTest extends JSR1
884  
885          Object e4 = q.ceiling(m6);
886          assertNull(e4);
897
887      }
888  
889      /**
# Line 914 | Line 903 | public class TreeSubSetTest extends JSR1
903      public void testDescendingToArray2() {
904          NavigableSet q = populatedSet(SIZE);
905          Integer[] ints = new Integer[SIZE];
906 <        ints = (Integer[])q.toArray(ints);
906 >        assertSame(ints, q.toArray(ints));
907          Arrays.sort(ints);
908          for (int i = 0; i < ints.length; i++)
909              assertEquals(ints[i], q.pollFirst());
# Line 951 | Line 940 | public class TreeSubSetTest extends JSR1
940      /**
941       * iterator.remove removes current element
942       */
943 <    public void testDescendingIteratorRemove () {
943 >    public void testDescendingIteratorRemove() {
944          final NavigableSet q = dset0();
945          q.add(new Integer(2));
946          q.add(new Integer(1));
# Line 962 | Line 951 | public class TreeSubSetTest extends JSR1
951          it.remove();
952  
953          it = q.iterator();
954 <        assertEquals(it.next(), new Integer(2));
955 <        assertEquals(it.next(), new Integer(3));
954 >        assertEquals(it.next(), 2);
955 >        assertEquals(it.next(), 3);
956          assertFalse(it.hasNext());
957      }
958  
970
959      /**
960       * toString contains toStrings of elements
961       */
# Line 975 | Line 963 | public class TreeSubSetTest extends JSR1
963          NavigableSet q = populatedSet(SIZE);
964          String s = q.toString();
965          for (int i = 0; i < SIZE; ++i) {
966 <            assertTrue(s.indexOf(String.valueOf(i)) >= 0);
966 >            assertTrue(s.contains(String.valueOf(i)));
967          }
968      }
969  
# Line 983 | Line 971 | public class TreeSubSetTest extends JSR1
971       * A deserialized serialized set has same elements
972       */
973      public void testDescendingSerialization() throws Exception {
974 <        NavigableSet q = populatedSet(SIZE);
975 <        ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
976 <        ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
977 <        out.writeObject(q);
978 <        out.close();
979 <
980 <        ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
981 <        ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
982 <        NavigableSet r = (NavigableSet)in.readObject();
983 <        assertEquals(q.size(), r.size());
984 <        while (!q.isEmpty())
985 <            assertEquals(q.pollFirst(), r.pollFirst());
974 >        NavigableSet x = dset5();
975 >        NavigableSet y = serialClone(x);
976 >
977 >        assertTrue(x != y);
978 >        assertEquals(x.size(), y.size());
979 >        assertEquals(x.toString(), y.toString());
980 >        assertEquals(x, y);
981 >        assertEquals(y, x);
982 >        while (!x.isEmpty()) {
983 >            assertFalse(y.isEmpty());
984 >            assertEquals(x.pollFirst(), y.pollFirst());
985 >        }
986 >        assertTrue(y.isEmpty());
987      }
988  
989      /**

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