--TEST--
Test general background optimization
--CSS--
a { 
    background-color: white;
    background-image: url(123);
    background-repeat: no-repeat;
    background-position: 1px 1px;
    background-attachment: scroll;
}
b {
    background-position-x: 1px;
}
--EXPECT--
array (
  'a' => 
  array (
    'background-color' => '#fff',
    'background-image' => 'url(123)',
    'background-repeat' => 'no-repeat',
    'background-position' => '1px right 1px',
    'background-attachment' => 'scroll',
  ),
  'b' =>
  array (
    'background-position-x' => 'right 1px',
  ),
)
--SETTINGS--
optimise_shorthands=1
reverse_left_and_right=true
