Package java.util.concurrent

Examples of java.util.concurrent.ConcurrentNavigableMap.containsKey()


        ConcurrentNavigableMap map = map5();
        Set s = map.descendingMap().entrySet();
        Object[] ar = s.toArray();
        assertEquals(5, ar.length);
        for (int i = 0; i < 5; ++i) {
            assertTrue(map.containsKey(((Map.Entry)(ar[i])).getKey()));
            assertTrue(map.containsValue(((Map.Entry)(ar[i])).getValue()));
        }
    }

    /**
 
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     * putIfAbsent works when the given key is not present
     */
    public void testPutIfAbsent() {
        ConcurrentNavigableMap map = map5();
        map.putIfAbsent(six, "Z");
        assertTrue(map.containsKey(six));
    }

    /**
     * putIfAbsent does not add the pair if the key is already present
     */
 
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     * replace fails when the given key is not present
     */
    public void testReplace() {
        ConcurrentNavigableMap map = map5();
        assertNull(map.replace(six, "Z"));
        assertFalse(map.containsKey(six));
    }

    /**
     * replace succeeds if the key is already present
     */
 
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        map.remove(m5, "E");
        assertEquals(4, map.size());
        assertFalse(map.containsKey(m5));
        map.remove(m4, "A");
        assertEquals(4, map.size());
        assertTrue(map.containsKey(m4));
    }

    /**
     * lowerEntry returns preceding entry.
     */
 
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     * containsKey(null) of empty map throws NPE
     */
    public void testDescendingContainsKey_NullPointerException() {
        try {
            ConcurrentNavigableMap c = dmap5();
            c.containsKey(null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
 
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        assertEquals(m3, k);
        assertFalse(i.hasNext());
        Iterator j = sm.keySet().iterator();
        j.next();
        j.remove();
        assertFalse(map.containsKey(m2));
        assertEquals(4, map.size());
        assertEquals(1, sm.size());
        assertEquals(m3, sm.firstKey());
        assertEquals(m3, sm.lastKey());
        assertEquals("C", sm.remove(m3));
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        assertEquals(m2, k);
        assertFalse(i.hasNext());
        Iterator j = sm.keySet().iterator();
        j.next();
        j.remove();
        assertFalse(map.containsKey(m2));
        assertEquals(4, map.size());
        assertEquals(0, sm.size());
        assertTrue(sm.isEmpty());
        assertSame(sm.remove(m3), null);
        assertEquals(4, map.size());
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