54 lines
1.3 KiB
PHP
54 lines
1.3 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This file is part of the Symfony package.
|
||
|
|
*
|
||
|
|
* (c) Fabien Potencier <fabien@symfony.com>
|
||
|
|
*
|
||
|
|
* For the full copyright and license information, please view the LICENSE
|
||
|
|
* file that was distributed with this source code.
|
||
|
|
*/
|
||
|
|
|
||
|
|
namespace Symfony\Component\DependencyInjection\Tests\Argument;
|
||
|
|
|
||
|
|
use PHPUnit\Framework\TestCase;
|
||
|
|
use Symfony\Component\DependencyInjection\Argument\RewindableGenerator;
|
||
|
|
|
||
|
|
class RewindableGeneratorTest extends TestCase
|
||
|
|
{
|
||
|
|
public function testImplementsCountable()
|
||
|
|
{
|
||
|
|
$this->assertInstanceOf(\Countable::class, new RewindableGenerator(function () {
|
||
|
|
yield 1;
|
||
|
|
}, 1));
|
||
|
|
}
|
||
|
|
|
||
|
|
public function testCountUsesProvidedValue()
|
||
|
|
{
|
||
|
|
$generator = new RewindableGenerator(function () {
|
||
|
|
yield 1;
|
||
|
|
}, 3);
|
||
|
|
|
||
|
|
$this->assertCount(3, $generator);
|
||
|
|
}
|
||
|
|
|
||
|
|
public function testCountUsesProvidedValueAsCallback()
|
||
|
|
{
|
||
|
|
$called = 0;
|
||
|
|
$generator = new RewindableGenerator(function () {
|
||
|
|
yield 1;
|
||
|
|
}, function () use (&$called) {
|
||
|
|
++$called;
|
||
|
|
|
||
|
|
return 3;
|
||
|
|
});
|
||
|
|
|
||
|
|
$this->assertSame(0, $called, 'Count callback is called lazily');
|
||
|
|
$this->assertCount(3, $generator);
|
||
|
|
|
||
|
|
\count($generator);
|
||
|
|
|
||
|
|
$this->assertSame(1, $called, 'Count callback is called only once');
|
||
|
|
}
|
||
|
|
}
|