public function testEscapeValue()
{
$bag = new ParameterBag();
$bag->add(array('foo' => $bag->escapeValue(array('bar' => array('ding' => 'I\'m a bar %foo %bar', 'zero' => null))), 'bar' => $bag->escapeValue('I\'m a %foo%')));
$this->assertEquals('I\'m a %%foo%%', $bag->get('bar'), '->escapeValue() escapes % by doubling it');
$this->assertEquals(array('bar' => array('ding' => 'I\'m a bar %%foo %%bar', 'zero' => null)), $bag->get('foo'), '->escapeValue() escapes % by doubling it');
}