@Test
public void testWrapLong() {

    ByteBuf buffer = copyLong(1, 4);
    assertEquals(16, buffer.capacity());
    assertEquals(1, buffer.readLong());
    assertEquals(4, buffer.readLong());
    assertFalse(buffer.isReadable());
    buffer.release();
    buffer = copyLong(null);
    assertEquals(0, buffer.capacity());
    buffer.release();
    buffer = copyLong(new long[] {});
    assertEquals(0, buffer.capacity());
    buffer.release();
}