array('this string does not need trimming', 'this string does not need trimming'),
array(' this string needs trimming on left', 'this string needs trimming on left'),
array('this string needs trimming on right ', 'this string needs trimming on right'),
array(' this string needs trimming on both ends ', 'this string needs trimming on both ends'),
array(str_repeat('This string needs to be shortened because its length is way too long. ', 4), str_repeat('This string needs to be shortened because its length is way too long. ', 3) . 'This string needs to be shortened because its'),