public function test_can_be_constructed_with_initial_state_and_change_listener()
{
$value = null;
$stateMachine = new StateMachine('a', function ($state) use(&$value) {
$value = $state;
});
$stateMachine->configure('a')->permit('to-b', 'b')->permit('to-a', 'a');
$stateMachine->configure('b')->permit('to-a', 'a');
$this->assertEquals('a', $value);
$stateMachine->fire('to-b');
$this->assertEquals('b', $value);
$stateMachine->fire('to-a');
$this->assertEquals('a', $value);
$stateMachine->fire('to-a');
$this->assertEquals('a', $value);
}
/**
* @param string $event
* @param string $expectedState
*/
private function fireAndAssertState($event, $expectedState)
{
$this->stateMachine->fire($event);
$this->assertEquals($expectedState, $this->stateMachine->getCurrentState());
}
/**
* @param callable $changeCallback
*
* @return StateMachine
*/
private function buildPhoneCall($changeCallback)
{
$phoneCall = new StateMachine(self::STATE_OFF_HOOK, $changeCallback);
$phoneCall->configure(self::STATE_OFF_HOOK)->permit(self::EVENT_CALL_DIALED, self::STATE_RINGING, function ($data) {
return $this->isNumberValid($data);
}, 'Number is valid')->permit(self::EVENT_CALL_DIALED, self::STATE_BEEPING, function ($data) {
return !$this->isNumberValid($data);
}, 'Number is in-valid');
$phoneCall->configure(self::STATE_BEEPING)->permit(self::EVENT_HUNG_UP, self::STATE_OFF_HOOK);
$phoneCall->configure(self::STATE_RINGING)->permit(self::EVENT_HUNG_UP, self::STATE_OFF_HOOK)->permit(self::EVENT_CALL_CONNECTED, self::STATE_CONNECTED);
$phoneCall->configure(self::STATE_CONNECTED)->onEntry([$this, 'startTimer'], 'startTimer')->onExit([$this, 'stopTimer'], 'endTimer')->permit(self::EVENT_HUNG_UP, self::STATE_OFF_HOOK)->permit(self::EVENT_PLACE_ON_HOLD, self::STATE_ON_HOLD);
$phoneCall->configure(self::STATE_ON_HOLD)->subStateOf(self::STATE_CONNECTED)->permit(self::EVENT_CALL_CONNECTED, self::STATE_CONNECTED);
return $phoneCall;
}