Examples of java.util.NavigableSet

java.util.NavigableSet
A {@link SortedSet} extended with navigation methods reportingclosest matches for given search targets. Methods {@code lower}, {@code floor}, {@code ceiling}, and {@code higher} return elementsrespectively less than, less than or equal, greater than or equal, and greater than a given element, returning {@code null} if thereis no such element. A {@code NavigableSet} may be accessed andtraversed in either ascending or descending order. The {@code descendingSet} method returns a view of the set with the senses ofall relational and directional methods inverted. The performance of ascending operations and views is likely to be faster than that of descending ones. This interface additionally defines methods {@code pollFirst} and {@code pollLast} that return and remove thelowest and highest element, if one exists, else returning {@code null}. Methods {@code subSet}, {@code headSet}, and {@code tailSet} differ from the like-named {@code SortedSet} methods in accepting additional arguments describingwhether lower and upper bounds are inclusive versus exclusive. Subsets of any {@code NavigableSet} must implement the {@code NavigableSet} interface.
The return values of navigation methods may be ambiguous in implementations that permit {@code null} elements. However, evenin this case the result can be disambiguated by checking {@code contains(null)}. To avoid such issues, implementations of this interface are encouraged to not permit insertion of {@code null} elements. (Note that sorted sets of {@link Comparable} elements intrinsically do not permit {@code null}.)
Methods {@link #subSet(Object,Object) subSet(E, E)}, {@link #headSet(Object) headSet(E)}, and {@link #tailSet(Object) tailSet(E)}are specified to return {@code SortedSet} to allow existingimplementations of {@code SortedSet} to be compatibly retrofitted toimplement {@code NavigableSet}, but extensions and implementations of this interface are encouraged to override these methods to return {@code NavigableSet}.
This interface is a member of the Java Collections Framework. @author Doug Lea @author Josh Bloch @param < E> the type of elements maintained by this set @since 1.6

        descendingDescendingSet = descendingSet.descendingSet();
        assertEquals(keySet, descendingDescendingSet);
    }


    public void test_DescendingSubMapKeySet_descendingIterator() {
        NavigableSet keySet, descendingSet;
        int value;
        Iterator iterator, descendingIterator;


        keySet = navigableMap_startExcluded_endExcluded.navigableKeySet();
        descendingSet = keySet.descendingSet();
        descendingIterator = descendingSet.descendingIterator();
        assertTrue(descendingIterator.hasNext());
        for (value = 101; descendingIterator.hasNext(); value++) {
            assertEquals(new Integer(value).toString(), descendingIterator
                    .next());
        }
        assertEquals(109, value);
        try {
            descendingIterator.next();
            fail("should throw NoSuchElementException");
        } catch (NoSuchElementException e) {
            // Expected
        }


        descendingSet = descendingSet
                .headSet(new Integer(105).toString(), true);
        descendingIterator = descendingSet.descendingIterator();
        for (value = 105; descendingIterator.hasNext(); value++) {
            assertEquals(new Integer(value).toString(), descendingIterator
                    .next());
        }


        descendingSet = keySet.descendingSet();
        descendingSet = descendingSet
                .tailSet(new Integer(105).toString(), true);
        descendingIterator = descendingSet.descendingIterator();
        for (value = 101; descendingIterator.hasNext(); value++) {
            assertEquals(new Integer(value).toString(), descendingIterator
                    .next());
        }


        keySet = navigableMap_startExcluded_endIncluded.navigableKeySet();
        descendingSet = keySet.descendingSet();
        descendingIterator = descendingSet.descendingIterator();
        assertTrue(descendingIterator.hasNext());
        for (value = 101; descendingIterator.hasNext(); value++) {
            assertEquals(new Integer(value).toString(), descendingIterator
                    .next());
        }
        assertEquals(110, value);
        try {
            descendingIterator.next();
            fail("should throw NoSuchElementException");
        } catch (NoSuchElementException e) {
            // Expected
        }


        descendingSet = descendingSet
                .headSet(new Integer(105).toString(), true);
        descendingIterator = descendingSet.descendingIterator();
        for (value = 105; descendingIterator.hasNext(); value++) {
            assertEquals(new Integer(value).toString(), descendingIterator
                    .next());
        }


        descendingSet = keySet.descendingSet();
        descendingSet = descendingSet
                .tailSet(new Integer(105).toString(), true);
        descendingIterator = descendingSet.descendingIterator();
        for (value = 101; descendingIterator.hasNext(); value++) {
            assertEquals(new Integer(value).toString(), descendingIterator
                    .next());
        }


        keySet = navigableMap_startIncluded_endExcluded.navigableKeySet();
        descendingSet = keySet.descendingSet();
        descendingIterator = descendingSet.descendingIterator();
        assertTrue(descendingIterator.hasNext());
        for (value = 100; descendingIterator.hasNext(); value++) {
            assertEquals(new Integer(value).toString(), descendingIterator
                    .next());
        }
        assertEquals(109, value);
        try {
            descendingIterator.next();
            fail("should throw NoSuchElementException");
        } catch (NoSuchElementException e) {
            // Expected
        }


        keySet = navigableMap_startIncluded_endIncluded.navigableKeySet();
        descendingSet = keySet.descendingSet();
        descendingIterator = descendingSet.descendingIterator();
        assertTrue(descendingIterator.hasNext());
        for (value = 100; descendingIterator.hasNext(); value++) {
            assertEquals(new Integer(value).toString(), descendingIterator
                    .next());
        }
        assertEquals(110, value);
        try {
            descendingIterator.next();
            fail("should throw NoSuchElementException");
        } catch (NoSuchElementException e) {
            // Expected
        }


        String endKey = new Integer(2).toString();
        keySet = tm.headMap(endKey, true).navigableKeySet();
        iterator = keySet.iterator();


        descendingSet = keySet.descendingSet();
        descendingIterator = descendingSet.descendingIterator();


        while (iterator.hasNext()) {
            assertEquals(iterator.next(), descendingIterator.next());
        }


        String startKey = new Integer(2).toString();
        keySet = tm.tailMap(startKey, true).navigableKeySet();
        iterator = keySet.iterator();
        descendingSet = keySet.descendingSet();
        descendingIterator = descendingSet.descendingIterator();


        while (iterator.hasNext()) {
            assertEquals(iterator.next(), descendingIterator.next());
        }

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        }
    }


    public void test_DescendingSubMapEntrySet_tailSet() {
        Set entrySet, tailSet;
        NavigableSet descendingSubMapEntrySet;
        Iterator iterator, tailSetIterator;
        Entry entry;
        int value;


        entrySet = navigableMap_startExcluded_endExcluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            descendingSubMapEntrySet = ((NavigableSet) entrySet)
                    .descendingSet();
            iterator = descendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                tailSet = descendingSubMapEntrySet.tailSet(entry);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                tailSet = descendingSubMapEntrySet.tailSet(entry, false);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value - 1, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                tailSet = descendingSubMapEntrySet.tailSet(entry, true);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }
            }
        }


        entrySet = navigableMap_startExcluded_endIncluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            descendingSubMapEntrySet = ((NavigableSet) entrySet)
                    .descendingSet();
            iterator = descendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                tailSet = descendingSubMapEntrySet.tailSet(entry);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                tailSet = descendingSubMapEntrySet.tailSet(entry, false);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value - 1, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                tailSet = descendingSubMapEntrySet.tailSet(entry, true);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }
            }
        }


        entrySet = navigableMap_startIncluded_endExcluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            descendingSubMapEntrySet = ((NavigableSet) entrySet)
                    .descendingSet();
            iterator = descendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                tailSet = descendingSubMapEntrySet.tailSet(entry);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                tailSet = descendingSubMapEntrySet.tailSet(entry, false);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value - 1, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                tailSet = descendingSubMapEntrySet.tailSet(entry, true);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }
            }
        }


        entrySet = navigableMap_startIncluded_endIncluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            descendingSubMapEntrySet = ((NavigableSet) entrySet)
                    .descendingSet();
            iterator = descendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                tailSet = descendingSubMapEntrySet.tailSet(entry);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                tailSet = descendingSubMapEntrySet.tailSet(entry, false);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value - 1, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                tailSet = descendingSubMapEntrySet.tailSet(entry, true);
                tailSetIterator = tailSet.iterator();
                for (value = (Integer) entry.getValue(); tailSetIterator
                        .hasNext(); value--) {
                    assertEquals(value, ((Entry) tailSetIterator.next())
                            .getValue());
                }
                try {
                    tailSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }
            }
        }


        String endKey = new Integer(2).toString();
        entrySet = tm.headMap(endKey, true).entrySet();// 0...2
        if (entrySet instanceof NavigableSet) {
            // [2...0]
            descendingSubMapEntrySet = ((NavigableSet) entrySet)
                    .descendingSet();
            iterator = descendingSubMapEntrySet.iterator();
            iterator.next();// 2
            entry = (Entry) iterator.next();// 199
            tailSet = descendingSubMapEntrySet.tailSet(entry);
            tailSetIterator = tailSet.iterator();
            assertEquals(199, ((Entry) tailSetIterator.next()).getValue());


            tailSet = descendingSubMapEntrySet.tailSet(entry, false);
            tailSetIterator = tailSet.iterator();
            assertEquals(198, ((Entry) tailSetIterator.next()).getValue());


            tailSet = descendingSubMapEntrySet.tailSet(entry, true);
            tailSetIterator = tailSet.iterator();
            assertEquals(199, ((Entry) tailSetIterator.next()).getValue());
        }
    }

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        }
    }


    public void test_DescendingSubMapEntrySet_subSet() {
        Set entrySet, subSet;
        NavigableSet descendingSubMapEntrySet;
        Entry startEntry, endEntry;
        Iterator subSetIterator;


        entrySet = navigableMap_startExcluded_endExcluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            descendingSubMapEntrySet = ((NavigableSet) entrySet)
                    .descendingSet();
            Iterator iteratorStart = descendingSubMapEntrySet.iterator();
            while (iteratorStart.hasNext()) {
                startEntry = (Entry) iteratorStart.next();
                Iterator iteratorEnd = descendingSubMapEntrySet.iterator();
                while (iteratorEnd.hasNext()) {
                    endEntry = (Entry) iteratorEnd.next();
                    int startIndex = (Integer) startEntry.getValue();
                    int endIndex = (Integer) endEntry.getValue();
                    if (startIndex < endIndex) {
                        try {
                            descendingSubMapEntrySet.subSet(startEntry,
                                    endEntry);
                            fail("should throw IllegalArgumentException");
                        } catch (IllegalArgumentException e) {
                            // Expected
                        }


                        try {
                            descendingSubMapEntrySet.subSet(startEntry, false,
                                    endEntry, false);
                            fail("should throw IllegalArgumentException");
                        } catch (IllegalArgumentException e) {
                            // Expected
                        }


                        try {
                            descendingSubMapEntrySet.subSet(startEntry, false,
                                    endEntry, true);
                            fail("should throw IllegalArgumentException");
                        } catch (IllegalArgumentException e) {
                            // Expected
                        }


                        try {
                            descendingSubMapEntrySet.subSet(startEntry, true,
                                    endEntry, false);
                            fail("should throw IllegalArgumentException");
                        } catch (IllegalArgumentException e) {
                            // Expected
                        }


                        try {
                            descendingSubMapEntrySet.subSet(startEntry, true,
                                    endEntry, true);
                            fail("should throw IllegalArgumentException");
                        } catch (IllegalArgumentException e) {
                            // Expected
                        }
                    } else {
                        subSet = descendingSubMapEntrySet.subSet(startEntry,
                                endEntry);
                        subSetIterator = subSet.iterator();
                        for (int index = startIndex; subSetIterator.hasNext(); index--) {
                            assertEquals(index, ((Entry) subSetIterator.next())
                                    .getValue());
                        }


                        subSet = descendingSubMapEntrySet.subSet(startEntry,
                                false, endEntry, false);
                        subSetIterator = subSet.iterator();
                        for (int index = startIndex - 1; subSetIterator
                                .hasNext(); index--) {
                            assertEquals(index, ((Entry) subSetIterator.next())
                                    .getValue());
                        }


                        subSet = descendingSubMapEntrySet.subSet(startEntry,
                                false, endEntry, true);
                        subSetIterator = subSet.iterator();
                        for (int index = startIndex - 1; subSetIterator
                                .hasNext(); index--) {
                            assertEquals(index, ((Entry) subSetIterator.next())
                                    .getValue());
                        }


                        subSet = descendingSubMapEntrySet.subSet(startEntry,
                                true, endEntry, false);
                        subSetIterator = subSet.iterator();
                        for (int index = startIndex; subSetIterator.hasNext(); index--) {
                            assertEquals(index, ((Entry) subSetIterator.next())
                                    .getValue());
                        }


                        subSet = descendingSubMapEntrySet.subSet(startEntry,
                                true, endEntry, true);
                        subSetIterator = subSet.iterator();
                        for (int index = startIndex; subSetIterator.hasNext(); index--) {
                            assertEquals(index, ((Entry) subSetIterator.next())
                                    .getValue());
                        }
                    }
                }
            }
        }


        String endKey = new Integer(2).toString();
        entrySet = tm.headMap(endKey, true).entrySet();
        if (entrySet instanceof NavigableSet) {
            // [2...0]
            descendingSubMapEntrySet = ((NavigableSet) entrySet)
                    .descendingSet();
            Iterator iterator = descendingSubMapEntrySet.iterator();
            startEntry = (Entry) iterator.next();
            iterator.next();
            endEntry = (Entry) iterator.next();
            subSet = descendingSubMapEntrySet.subSet(startEntry, endEntry);
            assertEquals(2, subSet.size());


            subSet = descendingSubMapEntrySet.subSet(startEntry, false,
                    endEntry, false);
            assertEquals(1, subSet.size());
            subSetIterator = subSet.iterator();
            assertEquals(199, ((Entry) subSetIterator.next()).getValue());


            subSet = descendingSubMapEntrySet.subSet(startEntry, false,
                    endEntry, true);
            assertEquals(2, subSet.size());
            subSetIterator = subSet.iterator();
            assertEquals(199, ((Entry) subSetIterator.next()).getValue());
            assertEquals(198, ((Entry) subSetIterator.next()).getValue());


            subSet = descendingSubMapEntrySet.subSet(startEntry, true,
                    endEntry, false);
            assertEquals(2, subSet.size());
            subSetIterator = subSet.iterator();
            assertEquals(2, ((Entry) subSetIterator.next()).getValue());
            assertEquals(199, ((Entry) subSetIterator.next()).getValue());


            subSet = descendingSubMapEntrySet.subSet(startEntry, true,
                    endEntry, true);
            assertEquals(3, subSet.size());
            subSetIterator = subSet.iterator();
            assertEquals(2, ((Entry) subSetIterator.next()).getValue());
            assertEquals(199, ((Entry) subSetIterator.next()).getValue());
            assertEquals(198, ((Entry) subSetIterator.next()).getValue());
        }


        // With Comnparator
        entrySet = subMap_startExcluded_endExcluded_comparator.entrySet();
        if (entrySet instanceof NavigableSet) {
            descendingSubMapEntrySet = ((NavigableSet) entrySet)
                    .descendingSet();
            Iterator iteratorStart = descendingSubMapEntrySet.iterator();
            while (iteratorStart.hasNext()) {
                startEntry = (Entry) iteratorStart.next();
                Iterator iteratorEnd = descendingSubMapEntrySet.iterator();
                while (iteratorEnd.hasNext()) {
                    endEntry = (Entry) iteratorEnd.next();
                    int startIndex = (Integer) startEntry.getValue();
                    int endIndex = (Integer) endEntry.getValue();
                    if (startIndex < endIndex) {
                        try {
                            descendingSubMapEntrySet.subSet(startEntry,
                                    endEntry);
                            fail("should throw IllegalArgumentException");
                        } catch (IllegalArgumentException e) {
                            // Expected
                        }


                        try {
                            descendingSubMapEntrySet.subSet(startEntry, false,
                                    endEntry, false);
                            fail("should throw IllegalArgumentException");
                        } catch (IllegalArgumentException e) {
                            // Expected
                        }


                        try {
                            descendingSubMapEntrySet.subSet(startEntry, false,
                                    endEntry, true);
                            fail("should throw IllegalArgumentException");
                        } catch (IllegalArgumentException e) {
                            // Expected
                        }


                        try {
                            descendingSubMapEntrySet.subSet(startEntry, true,
                                    endEntry, false);
                            fail("should throw IllegalArgumentException");
                        } catch (IllegalArgumentException e) {
                            // Expected
                        }


                        try {
                            descendingSubMapEntrySet.subSet(startEntry, true,
                                    endEntry, true);
                            fail("should throw IllegalArgumentException");
                        } catch (IllegalArgumentException e) {
                            // Expected
                        }
                    } else {
                        subSet = descendingSubMapEntrySet.subSet(startEntry,
                                endEntry);
                        subSetIterator = subSet.iterator();
                        for (int index = startIndex; subSetIterator.hasNext(); index--) {
                            assertEquals(index, ((Entry) subSetIterator.next())
                                    .getValue());
                        }


                        subSet = descendingSubMapEntrySet.subSet(startEntry,
                                false, endEntry, false);
                        subSetIterator = subSet.iterator();
                        for (int index = startIndex - 1; subSetIterator
                                .hasNext(); index--) {
                            assertEquals(index, ((Entry) subSetIterator.next())
                                    .getValue());
                        }


                        subSet = descendingSubMapEntrySet.subSet(startEntry,
                                false, endEntry, true);
                        subSetIterator = subSet.iterator();
                        for (int index = startIndex - 1; subSetIterator
                                .hasNext(); index--) {
                            assertEquals(index, ((Entry) subSetIterator.next())
                                    .getValue());
                        }


                        subSet = descendingSubMapEntrySet.subSet(startEntry,
                                true, endEntry, false);
                        subSetIterator = subSet.iterator();
                        for (int index = startIndex; subSetIterator.hasNext(); index--) {
                            assertEquals(index, ((Entry) subSetIterator.next())
                                    .getValue());
                        }


                        subSet = descendingSubMapEntrySet.subSet(startEntry,
                                true, endEntry, true);
                        subSetIterator = subSet.iterator();
                        for (int index = startIndex; subSetIterator.hasNext(); index--) {
                            assertEquals(index, ((Entry) subSetIterator.next())
                                    .getValue());

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    public void test_navigableKeySet() throws Exception {
        Integer testint9999 = new Integer(9999);
        Integer testint10000 = new Integer(10000);
        Integer testint100 = new Integer(100);
        Integer testint0 = new Integer(0);
        NavigableSet set = tm.navigableKeySet();
        assertFalse(set.contains(testint9999.toString()));
        tm.put(testint9999.toString(), testint9999);
        assertTrue(set.contains(testint9999.toString()));
        tm.remove(testint9999.toString());
        assertFalse(set.contains(testint9999.toString()));
        try {
            set.add(new Object());
            fail("should throw UnsupportedOperationException");
        } catch (UnsupportedOperationException e) {
            // expected
        }
        try {
            set.add(null);
            fail("should throw UnsupportedOperationException");
        } catch (UnsupportedOperationException e) {
            // expected
        }
        try {
            set.addAll(null);
            fail("should throw UnsupportedOperationException");
        } catch (NullPointerException e) {
            // expected
        }
        Collection collection = new LinkedList();
        set.addAll(collection);
        try {
            collection.add(new Object());
            set.addAll(collection);
            fail("should throw UnsupportedOperationException");
        } catch (UnsupportedOperationException e) {
            // expected
        }
        set.remove(testint100.toString());
        assertFalse(tm.containsKey(testint100.toString()));
        assertTrue(tm.containsKey(testint0.toString()));
        Iterator iter = set.iterator();
        iter.next();
        iter.remove();
        assertFalse(tm.containsKey(testint0.toString()));
        collection.add(new Integer(200).toString());
        set.retainAll(collection);
        assertEquals(1, tm.size());
        set.removeAll(collection);
        assertEquals(0, tm.size());
        tm.put(testint10000.toString(), testint10000);
        assertEquals(1, tm.size());
        set.clear();
        assertEquals(0, tm.size());
    }

View Full Code Here

        }
    }


    public void test_AscendingSubMapEntrySet_ceiling() {
        Set entrySet;
        NavigableSet ascendingSubMapEntrySet;
        Iterator iterator;


        Set entrySet_beyondBound;
        Iterator iterator_beyondBound;
        Entry beyondBoundEntry;


        Entry entry, lowerEntry;
        int value = 0;


        entrySet = navigableMap_startExcluded_endExcluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.ceiling(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                lowerEntry = (Entry) ascendingSubMapEntrySet.ceiling(entry);
                value = (Integer) entry.getValue();
                assertEquals(value, lowerEntry.getValue());
            }
            assertEquals(108, value);


        }


        entrySet = navigableMap_startExcluded_endIncluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.ceiling(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                lowerEntry = (Entry) ascendingSubMapEntrySet.ceiling(entry);
                value = (Integer) entry.getValue();
                assertEquals(value, lowerEntry.getValue());
            }
            assertEquals(109, value);
        }


        entrySet = navigableMap_startIncluded_endExcluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.ceiling(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                lowerEntry = (Entry) ascendingSubMapEntrySet.ceiling(entry);
                value = (Integer) entry.getValue();
                assertEquals(value, lowerEntry.getValue());
            }
            assertEquals(108, value);
        }


        entrySet = navigableMap_startIncluded_endIncluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.ceiling(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                lowerEntry = (Entry) ascendingSubMapEntrySet.ceiling(entry);
                value = (Integer) entry.getValue();
                assertEquals(value, lowerEntry.getValue());
            }
            assertEquals(109, value);
        }


        // With Comparator
        entrySet = subMap_startIncluded_endIncluded_comparator.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.ceiling(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                lowerEntry = (Entry) ascendingSubMapEntrySet.ceiling(entry);
                value = (Integer) entry.getValue();
                assertEquals(value, lowerEntry.getValue());
            }
            assertEquals(109, value);
        }


        entrySet = subMap_startIncluded_endExcluded_comparator.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.ceiling(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                lowerEntry = (Entry) ascendingSubMapEntrySet.ceiling(entry);
                value = (Integer) entry.getValue();
                assertEquals(value, lowerEntry.getValue());
            }
            assertEquals(108, value);
        }


        entrySet = subMap_startExcluded_endIncluded_comparator.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.ceiling(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                lowerEntry = (Entry) ascendingSubMapEntrySet.ceiling(entry);
                value = (Integer) entry.getValue();
                assertEquals(value, lowerEntry.getValue());
            }
            assertEquals(109, value);
        }


        entrySet = subMap_startExcluded_endExcluded_comparator.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.ceiling(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                lowerEntry = (Entry) ascendingSubMapEntrySet.ceiling(entry);
                value = (Integer) entry.getValue();
                assertEquals(value, lowerEntry.getValue());
            }
            assertEquals(108, value);
        }

View Full Code Here

        }
    }


    public void test_AscendingSubMapEntrySet_floor() {
        Set entrySet;
        NavigableSet ascendingSubMapEntrySet;
        Iterator iterator;
        Entry entry, floorEntry;
        int value;


        entrySet = navigableMap_startExcluded_endExcluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.floor(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            for (int i = 101; i < 109; i++) {
                entry = (Entry) iterator.next();
                floorEntry = (Entry) ascendingSubMapEntrySet.floor(entry);
                assertEquals(entry.getValue(), floorEntry.getValue());
            }
            assertFalse(iterator.hasNext());
        }


        entrySet = navigableMap_startExcluded_endIncluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.floor(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            for (int i = 101; i < 110; i++) {
                entry = (Entry) iterator.next();
                floorEntry = (Entry) ascendingSubMapEntrySet.floor(entry);
                assertEquals(entry.getValue(), floorEntry.getValue());
            }
            assertFalse(iterator.hasNext());
        }


        entrySet = navigableMap_startIncluded_endExcluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.floor(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            for (int i = 100; i < 109; i++) {
                entry = (Entry) iterator.next();
                floorEntry = (Entry) ascendingSubMapEntrySet.floor(entry);
                assertEquals(entry.getValue(), floorEntry.getValue());
            }
            assertFalse(iterator.hasNext());
        }


        entrySet = navigableMap_startIncluded_endIncluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.floor(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            for (int i = 100; i < 110; i++) {
                entry = (Entry) iterator.next();
                floorEntry = (Entry) ascendingSubMapEntrySet.floor(entry);
                assertEquals(entry.getValue(), floorEntry.getValue());
            }
            assertFalse(iterator.hasNext());
        }


        // With Comparator
        entrySet = subMap_startExcluded_endExcluded_comparator.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.floor(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            for (int i = 101; i < 109; i++) {
                entry = (Entry) iterator.next();
                floorEntry = (Entry) ascendingSubMapEntrySet.floor(entry);
                assertEquals(entry.getValue(), floorEntry.getValue());
            }
            assertFalse(iterator.hasNext());
        }


        entrySet = subMap_startExcluded_endIncluded_comparator.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.floor(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            for (int i = 101; i < 110; i++) {
                entry = (Entry) iterator.next();
                floorEntry = (Entry) ascendingSubMapEntrySet.floor(entry);
                assertEquals(entry.getValue(), floorEntry.getValue());
            }
            assertFalse(iterator.hasNext());
        }


        entrySet = subMap_startIncluded_endExcluded_comparator.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.floor(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            for (int i = 100; i < 109; i++) {
                entry = (Entry) iterator.next();
                floorEntry = (Entry) ascendingSubMapEntrySet.floor(entry);
                assertEquals(entry.getValue(), floorEntry.getValue());
            }
            assertFalse(iterator.hasNext());
        }


        entrySet = subMap_startIncluded_endIncluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            try {
                ascendingSubMapEntrySet.floor(null);
                fail("should throw NullPointerException");
            } catch (NullPointerException e) {
                // Expected
            }


            iterator = ascendingSubMapEntrySet.iterator();
            for (int i = 100; i < 110; i++) {
                entry = (Entry) iterator.next();
                floorEntry = (Entry) ascendingSubMapEntrySet.floor(entry);
                assertEquals(entry.getValue(), floorEntry.getValue());
            }
            assertFalse(iterator.hasNext());
        }
    }

View Full Code Here

    }


    public void test_AscendingSubMapEntrySet_pollLast_startExcluded_endIncluded() {
        Set entrySet = navigableMap_startExcluded_endIncluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            NavigableSet ascendingSubMapEntrySet = (NavigableSet) entrySet;
            for (int value = 109; value > 100; value--) {
                Entry entry = (Entry) ascendingSubMapEntrySet.pollLast();
                assertEquals(value, entry.getValue());
            }
            assertTrue(ascendingSubMapEntrySet.isEmpty());
            // should return null if the set is empty
            assertNull(ascendingSubMapEntrySet.pollLast());
        }
    }

View Full Code Here

    }


    public void test_AscendingSubMapEntrySet_pollLast_startIncluded_endExcluded() {
        Set entrySet = navigableMap_startIncluded_endExcluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            NavigableSet ascendingSubMapEntrySet = (NavigableSet) entrySet;
            for (int value = 108; value > 99; value--) {
                Entry entry = (Entry) ascendingSubMapEntrySet.pollLast();
                assertEquals(value, entry.getValue());
            }
            assertTrue(ascendingSubMapEntrySet.isEmpty());
            // should return null if the set is empty
            assertNull(ascendingSubMapEntrySet.pollLast());
        }
    }

View Full Code Here

    }


    public void test_AscendingSubMapEntrySet_pollLast_startIncluded_endIncluded() {
        Set entrySet = navigableMap_startIncluded_endIncluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            NavigableSet ascendingSubMapEntrySet = (NavigableSet) entrySet;
            for (int value = 109; value > 99; value--) {
                Entry entry = (Entry) ascendingSubMapEntrySet.pollLast();
                assertEquals(value, entry.getValue());
            }
            assertTrue(ascendingSubMapEntrySet.isEmpty());
            // should return null if the set is empty
            assertNull(ascendingSubMapEntrySet.pollLast());
        }
    }

View Full Code Here

        }
    }


    public void test_AscendingSubMapEntrySet_headSet() {
        Set entrySet, headSet;
        NavigableSet ascendingSubMapEntrySet;
        Iterator iterator, headSetIterator;
        Entry entry;
        int value;


        entrySet = navigableMap_startExcluded_endExcluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                headSet = ascendingSubMapEntrySet.headSet(entry);
                headSetIterator = headSet.iterator();
                for (value = 101; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }
                assertEquals(entry.getValue(), value);
                try {
                    headSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                headSet = ascendingSubMapEntrySet.headSet(entry, false);
                headSetIterator = headSet.iterator();
                for (value = 101; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }
                assertEquals(entry.getValue(), value);
                try {
                    headSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                headSet = ascendingSubMapEntrySet.headSet(entry, true);
                headSetIterator = headSet.iterator();
                for (value = 101; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }
                assertEquals(entry.getValue(), value - 1);
                try {
                    headSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }
            }
        }


        entrySet = navigableMap_startExcluded_endIncluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                headSet = ascendingSubMapEntrySet.headSet(entry);
                headSetIterator = headSet.iterator();
                for (value = 101; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }
                assertEquals(entry.getValue(), value);
                try {
                    headSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                headSet = ascendingSubMapEntrySet.headSet(entry, false);
                headSetIterator = headSet.iterator();
                for (value = 101; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }
                assertEquals(entry.getValue(), value);
                try {
                    headSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                headSet = ascendingSubMapEntrySet.headSet(entry, true);
                headSetIterator = headSet.iterator();
                for (value = 101; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }
                assertEquals(entry.getValue(), value - 1);
                try {
                    headSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }
            }
        }


        entrySet = navigableMap_startIncluded_endExcluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                headSet = ascendingSubMapEntrySet.headSet(entry);
                headSetIterator = headSet.iterator();
                for (value = 100; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }
                assertEquals(entry.getValue(), value);
                try {
                    headSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                headSet = ascendingSubMapEntrySet.headSet(entry, false);
                headSetIterator = headSet.iterator();
                for (value = 100; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }
                assertEquals(entry.getValue(), value);
                try {
                    headSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                headSet = ascendingSubMapEntrySet.headSet(entry, true);
                headSetIterator = headSet.iterator();
                for (value = 100; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }
                assertEquals(entry.getValue(), value - 1);
                try {
                    headSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }
            }
        }


        entrySet = navigableMap_startIncluded_endIncluded.entrySet();
        if (entrySet instanceof NavigableSet) {
            ascendingSubMapEntrySet = (NavigableSet) entrySet;
            iterator = ascendingSubMapEntrySet.iterator();
            while (iterator.hasNext()) {
                entry = (Entry) iterator.next();
                headSet = ascendingSubMapEntrySet.headSet(entry);
                headSetIterator = headSet.iterator();
                for (value = 100; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }
                assertEquals(entry.getValue(), value);
                try {
                    headSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                headSet = ascendingSubMapEntrySet.headSet(entry, false);
                headSetIterator = headSet.iterator();
                for (value = 100; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }
                assertEquals(entry.getValue(), value);
                try {
                    headSetIterator.next();
                    fail("should throw NoSuchElementException");
                } catch (NoSuchElementException e) {
                    // Expected
                }


                headSet = ascendingSubMapEntrySet.headSet(entry, true);
                headSetIterator = headSet.iterator();
                for (value = 100; headSetIterator.hasNext(); value++) {
                    assertEquals(value, ((Entry) headSetIterator.next())
                            .getValue());
                }

View Full Code Here

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