public function testFilterOrder()
{
$filter = new FilterChain();
$filter->addFilter(new LowerCase())->addFilter(new StripUpperCase());
$value = 'AbC';
$valueExpected = 'abc';
$this->assertEquals($valueExpected, $filter->filter($value));
}
/**
* Tests MvcLite\FilterChain::addFilter().
*
* @dataProvider provideAddFilter
*/
public function testAddFilter($filter)
{
$sut = new FilterChain();
$result = $sut->addFilter($filter);
$this->assertSame($result, $sut);
}
<?php require_once './Filter.php'; require_once './HTMLFilter.php'; require_once './LengthFilter.php'; require_once './FilterChain.php'; require_once './MsgProcessor.php'; $msg = "<p>hello, i am tom.how are you?</p>"; $filter_chain = new FilterChain(); $filter_chain->addFilter(new HTMLFilter())->addFilter(new LengthFilter()); $msg_processor = new MsgProcessor($msg, $filter_chain); echo $msg_processor->process() . "\n";