/**
* Test getting messages until the queue runs out. When no messages left in the queue,
* getNextMessage will return null, indicating no additional messages.
* Iterable should end when no additional messages left in the queue.
*/
public function testIterateExhaustMessages()
{
$body = '<test xmlns="http://api.gsicommerce.com/schema/checkout/1.0" timestamp="2000-01-01T00:00:00-00:00"/>';
$this->api->expects($this->any())->method('getNextMessage')->will($this->onConsecutiveCalls(new AMQPMessage($body, ['type' => 'Test']), new AMQPMessage($body, ['type' => 'Test'])));
$processed = 0;
while ($this->iterator->valid()) {
$processed++;
$this->iterator->next();
}
$this->assertSame(2, $processed);
}
/**
* Test if there is a payload at the current index. Called after self::rewind
* and self::next while iterating over the messages.
* @return bool
*/
public function valid()
{
// don't process more than the max messages
if ($this->currentKey >= $this->maxMessages) {
return false;
}
// if a payload already exists for the current key, we'll be able to return that
if (isset($this->messages[$this->currentKey])) {
return true;
}
// if no payload exists for the current key yet, try to get the next one
$message = $this->api->getNextMessage();
if ($message) {
$this->messages[$this->currentKey] = $message;
return true;
}
// if no message exists and no new messages could be received,
// end the iterable
return false;
}