--TEST--
"empty" test
--TEMPLATE--
{{ foo is empty ? 'ok' : 'ko' }}
{{ bar is empty ? 'ok' : 'ko' }}
{{ foobar is empty ? 'ok' : 'ko' }}
{{ array is empty ? 'ok' : 'ko' }}
{{ zero is empty ? 'ok' : 'ko' }}
{{ string is empty ? 'ok' : 'ko' }}
--DATA--
return array('foo' => '', 'bar' => null, 'foobar' => false, 'array' => array(), 'zero' => 0, 'string' => '0');
--EXPECT--
ok
ok
ok
ok
ko
ko