function test_short_date()
{
$date = '2012-01-01 18:30:00';
$time = strtotime($date);
$expected = '<time class="shortdate" datetime="2012-01-01T18:30:00+00:00">Jan 1</time>';
$this->assertEquals($expected, I18n::short_date($date));
$this->assertEquals($expected, I18n::short_date($time));
}