public function testIsCensoring()
{
$string = new String('Lorem ipsum dolor');
$result = $string->censor('ipsum');
$this->assertInstanceOf('Simple\\Type\\String', $result);
$this->assertEquals('Lorem ***** dolor', $result->toString());
$string = new String('Lorem ipsum dolor');
$result = $string->censor(array('Lorem', 'dolor'));
$this->assertInstanceOf('Simple\\Type\\String', $result);
$this->assertEquals('***** ipsum *****', $result->toString());
}