php-src/ext/spl/tests/observer_002.phpt
2012-10-10 10:27:49 +08:00

200 lines
3.7 KiB
PHP

--TEST--
SPL: SplObjectStorage
--FILE--
<?php
class MyObjectStorage extends SplObjectStorage
{
function rewind()
{
echo __METHOD__ . "()\n";
parent::rewind();
}
function valid()
{
echo __METHOD__ . "(" . (parent::valid() ? 1 : 0) . ")\n";
return parent::valid();
}
function key()
{
echo __METHOD__ . "(" . parent::key() . ")\n";
return parent::key();
}
function current()
{
echo __METHOD__ . "(" . parent::current()->getName() . ")\n";
return parent::current();
}
function next()
{
echo __METHOD__ . "()\n";
parent::next();
}
}
class ObserverImpl implements SplObserver
{
protected $name = '';
function __construct($name = 'obj')
{
$this->name = '$' . $name;
}
function update(SplSubject $subject)
{
echo $this->name . '->' . __METHOD__ . '(' . $subject->getName() . ");\n";
}
function getName()
{
return $this->name;
}
}
class SubjectImpl implements SplSubject
{
protected $name = '';
protected $observers;
function __construct($name = 'sub')
{
$this->observers = new MyObjectStorage;
$this->name = '$' . $name;
}
function attach(SplObserver $observer)
{
echo $this->name . '->' . __METHOD__ . '(' . $observer->getName() . ");\n";
$this->observers->attach($observer);
}
function detach(SplObserver $observer)
{
echo $this->name . '->' . __METHOD__ . '(' . $observer->getName() . ");\n";
$this->observers->detach($observer);
}
function count()
{
return $this->observers->count();
}
function notify()
{
echo $this->name . '->' . __METHOD__ . "();\n";
foreach($this->observers as $key => $observer)
{
$observer->update($this);
}
}
function getName()
{
return $this->name;
}
function contains($obj)
{
return $this->observers->contains($obj);
}
}
$sub = new SubjectImpl;
$ob1 = new ObserverImpl("ob1");
$ob2 = new ObserverImpl("ob2");
$ob3 = new ObserverImpl("ob3");
var_dump($sub->contains($ob1));
$sub->attach($ob1);
var_dump($sub->contains($ob1));
$sub->attach($ob1);
$sub->attach($ob2);
$sub->attach($ob3);
var_dump($sub->count());
$sub->notify();
$sub->detach($ob3);
var_dump($sub->count());
$sub->notify();
$sub->detach($ob2);
$sub->detach($ob1);
var_dump($sub->count());
$sub->notify();
$sub->attach($ob3);
var_dump($sub->count());
$sub->notify();
?>
===DONE===
<?php exit(0); ?>
--EXPECT--
bool(false)
$sub->SubjectImpl::attach($ob1);
bool(true)
$sub->SubjectImpl::attach($ob1);
$sub->SubjectImpl::attach($ob2);
$sub->SubjectImpl::attach($ob3);
int(3)
$sub->SubjectImpl::notify();
MyObjectStorage::rewind()
MyObjectStorage::valid(1)
MyObjectStorage::current($ob1)
MyObjectStorage::key(0)
$ob1->ObserverImpl::update($sub);
MyObjectStorage::next()
MyObjectStorage::valid(1)
MyObjectStorage::current($ob2)
MyObjectStorage::key(1)
$ob2->ObserverImpl::update($sub);
MyObjectStorage::next()
MyObjectStorage::valid(1)
MyObjectStorage::current($ob3)
MyObjectStorage::key(2)
$ob3->ObserverImpl::update($sub);
MyObjectStorage::next()
MyObjectStorage::valid(0)
$sub->SubjectImpl::detach($ob3);
int(2)
$sub->SubjectImpl::notify();
MyObjectStorage::rewind()
MyObjectStorage::valid(1)
MyObjectStorage::current($ob1)
MyObjectStorage::key(0)
$ob1->ObserverImpl::update($sub);
MyObjectStorage::next()
MyObjectStorage::valid(1)
MyObjectStorage::current($ob2)
MyObjectStorage::key(1)
$ob2->ObserverImpl::update($sub);
MyObjectStorage::next()
MyObjectStorage::valid(0)
$sub->SubjectImpl::detach($ob2);
$sub->SubjectImpl::detach($ob1);
int(0)
$sub->SubjectImpl::notify();
MyObjectStorage::rewind()
MyObjectStorage::valid(0)
$sub->SubjectImpl::attach($ob3);
int(1)
$sub->SubjectImpl::notify();
MyObjectStorage::rewind()
MyObjectStorage::valid(1)
MyObjectStorage::current($ob3)
MyObjectStorage::key(0)
$ob3->ObserverImpl::update($sub);
MyObjectStorage::next()
MyObjectStorage::valid(0)
===DONE===