function testUnder()
{
$transition = new Transition('A', 'B');
$transition->setStates(array('A', 'C', 'D', 'F'));
$transition->addGuard('atMost', 4, array('C', 'D', 'E', 'F', 'G'));
$this->assertEquals(array(), $transition->explain());
}
function testImpossibleCondition()
{
$transition = new Transition('A', 'B');
$transition->setStates(array('A', 'C', 'D', 'F'));
$transition->addGuard('atLeast', 4, array('C', 'D', 'E'));
$this->assertEquals(array(array('class' => 'invalid', 'count' => 4, 'set' => array('C', 'D', 'E'))), $transition->explain());
}
function getAvailableTransitions( $object, $type = null )
{
$states = $this->getCurrentStates($object, $type);
$transitions = $this->getTransitionsFromStates($states);
$transitions = Perms::filter(
array('type' => 'transition'),
'object',
$transitions,
array('object' => 'transitionId'),
'trigger_transition'
);
foreach ( $transitions as & $tr ) {
$object = new Transition($tr['from'], $tr['to']);
$object->setStates($states);
foreach ( $tr['guards'] as $guard ) {
call_user_func_array(array($object, 'addGuard' ), $guard);
}
$tr['enabled'] = $object->isReady();
$tr['explain'] = $object->explain();
}
return $transitions;
}
