<?php declare(strict_types=1);

use PHPUnit\Framework\TestCase;

define('APP_ID', 'test');
define('BASE_ROOT_PATH', str_replace('/test', '', dirname(__FILE__)));

require_once(BASE_ROOT_PATH . '/global.php');
require_once(BASE_CORE_PATH . '/lrlz.php');
require_once(BASE_ROOT_PATH . '/fooder.php');

class TestTask extends TestCase
{
    public static function setUpBeforeClass() : void
    {
        Base::run_util();
    }

    public function testXRange()
    {
        $xrange = function ($start, $end, $step = 1) {
            for ($i = $start; $i <= $end; $i += $step) {
                yield $i;
            }
        };

        $ins = $xrange(1,100);
        var_dump($xrange);
        $type = $ins instanceof Iterator;


        foreach ($xrange(1, 1000000) as $num) {
            Log::record("num={$num}",Log::DEBUG);
        }
    }

    public function testLogger()
    {
        $log = function ($fileName) {
            $fileHandle = fopen($fileName, 'a');
            while (true) {
                fwrite($fileHandle, yield . "\n");
            }
        };

        $logger = $log(__DIR__ . '/log');
        $logger->send('Foo');
        $logger->send('Bar');
    }

    public function testGener()
    {
        $generator = function() {
            $ret = yield 'yield1';
            Log::record($ret,Log::DEBUG);
            $ret = yield 'yield2';
            Log::record($ret,Log::DEBUG);
        };

        $gen = $generator();
        Log::record($gen->current(),Log::DEBUG);
        $ret = $gen->send('ret1');
        Log::record($ret,Log::DEBUG);
        $ret = $gen->send('ret2');
        Log::record($ret,Log::DEBUG);

        //var_dump($gen->send('ret1')); // string(4) "ret1"   (the first var_dump in gen)
        // string(6) "yield2" (the var_dump of the ->send() return value)
//        var_dump($gen->send('ret2')); // string(4) "ret2"   (again from within gen)
        // NULL               (the return value of ->send())

    }
}