Examples of java.nio.DoubleBuffer.compareTo()

java.nio.DoubleBuffer.compareTo()
Compare the remaining doubles of this buffer to another double buffer's remaining doubles. @param otherBuffer Another double buffer @return a negative value if this is less than other; 0 ifthis equals to other; a positive value if this is greater than other @exception ClassCastException If other is not a double buffer


    public void testCompareTo() {
        DoubleBuffer other = DoubleBuffer.allocate(buf.capacity());
        loadTestData1(other);
        assertEquals(0, buf.compareTo(other));
        assertEquals(0, other.compareTo(buf));
        buf.position(1);
        assertTrue(buf.compareTo(other) > 0);
        assertTrue(other.compareTo(buf) < 0);
        other.position(2);
        assertTrue(buf.compareTo(other) < 0);

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        loadTestData1(other);
        assertEquals(0, buf.compareTo(other));
        assertEquals(0, other.compareTo(buf));
        buf.position(1);
        assertTrue(buf.compareTo(other) > 0);
        assertTrue(other.compareTo(buf) < 0);
        other.position(2);
        assertTrue(buf.compareTo(other) < 0);
        assertTrue(other.compareTo(buf) > 0);
        buf.position(2);
        other.limit(5);

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        buf.position(1);
        assertTrue(buf.compareTo(other) > 0);
        assertTrue(other.compareTo(buf) < 0);
        other.position(2);
        assertTrue(buf.compareTo(other) < 0);
        assertTrue(other.compareTo(buf) > 0);
        buf.position(2);
        other.limit(5);
        assertTrue(buf.compareTo(other) > 0);
        assertTrue(other.compareTo(buf) < 0);

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        assertTrue(buf.compareTo(other) < 0);
        assertTrue(other.compareTo(buf) > 0);
        buf.position(2);
        other.limit(5);
        assertTrue(buf.compareTo(other) > 0);
        assertTrue(other.compareTo(buf) < 0);


        DoubleBuffer dbuffer1 = DoubleBuffer.wrap(new double[] { Double.NaN });
        DoubleBuffer dbuffer2 = DoubleBuffer.wrap(new double[] { Double.NaN });
        DoubleBuffer dbuffer3 = DoubleBuffer.wrap(new double[] { 42d });

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        DoubleBuffer dbuffer2 = DoubleBuffer.wrap(new double[] { Double.NaN });
        DoubleBuffer dbuffer3 = DoubleBuffer.wrap(new double[] { 42d });


        assertEquals("Failed equal comparison with NaN entry", 0, dbuffer1
                .compareTo(dbuffer2));
        assertEquals("Failed greater than comparison with NaN entry", 1, dbuffer3
                .compareTo(dbuffer1));
        assertEquals("Failed greater than comparison with NaN entry", 1, dbuffer1
                .compareTo(dbuffer3));
    }

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