Package edu.stanford.ppl.concurrent

Examples of edu.stanford.ppl.concurrent.SnapTreeMap.lowerEntry()

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    /**
     * lowerEntry returns preceding entry.
     */
    public void testLowerEntry() {
        SnapTreeMap map = map5();
        Map.Entry e1 = map.lowerEntry(three);
        assertEquals(two, e1.getKey());

        Map.Entry e2 = map.lowerEntry(six);
        assertEquals(five, e2.getKey());

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    public void testLowerEntry() {
        SnapTreeMap map = map5();
        Map.Entry e1 = map.lowerEntry(three);
        assertEquals(two, e1.getKey());

        Map.Entry e2 = map.lowerEntry(six);
        assertEquals(five, e2.getKey());

        Map.Entry e3 = map.lowerEntry(one);
        assertNull(e3);
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        assertEquals(two, e1.getKey());

        Map.Entry e2 = map.lowerEntry(six);
        assertEquals(five, e2.getKey());

        Map.Entry e3 = map.lowerEntry(one);
        assertNull(e3);

        Map.Entry e4 = map.lowerEntry(zero);
        assertNull(e4);
    }
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        assertEquals(five, e2.getKey());

        Map.Entry e3 = map.lowerEntry(one);
        assertNull(e3);

        Map.Entry e4 = map.lowerEntry(zero);
        assertNull(e4);
    }

    /**
     * higherEntry returns next entry.
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     * lowerEntry, higherEntry, ceilingEntry, and floorEntry return
     * imutable entries
     */
    public void testEntryImmutablity() {
        SnapTreeMap map = map5();
        Map.Entry e = map.lowerEntry(three);
        assertEquals(two, e.getKey());
        try {
            e.setValue("X");
            shouldThrow();
        } catch (UnsupportedOperationException success) {}
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