public function testFilterValue()
{
$value = "this is <b> a string<p> with<b> tags</p> and malformed";
$filtered = $this->filter->filterValue($value, new Rules\StripTags());
$this->assertNotEquals($value, $filtered);
$this->assertNotContains('<b>', $filtered);
$this->assertNotContains('<p>', $filtered);
}