Assert.assertTrue(t.getNumberOfColumns() == 1);
Assert.assertTrue(t.getStringValueAt(0).equals("a"));
Assert.assertTrue(t.getBytes().length == 256);
t.compact();
t.addAttribute("123345".getBytes());
Assert.assertTrue(t.getNumberOfColumns() == 2);
Assert.assertTrue(t.getLongValueAt(1) == 123345);
Assert.assertTrue(t.getBytes().length == 9);
t.addAttribute("adfasdfg".getBytes());