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<?php
namespace Illuminate\Tests\Container;
use Illuminate\Container\RewindableGenerator;
use PHPUnit\Framework\TestCase;
class RewindableGeneratorTest extends TestCase
{
public function testCountUsesProvidedValue()
{
$generator = new RewindableGenerator(function () {
yield 'foo';
}, 999);
$this->assertCount(999, $generator);
}
public function testCountUsesProvidedValueAsCallback()
{
$called = 0;
$generator = new RewindableGenerator(function () {
yield 'foo';
}, function () use (&$called) {
$called++;
return 500;
});
// the count callback is called lazily
$this->assertSame(0, $called);
$this->assertCount(500, $generator);
count($generator);
// the count callback is called only once
$this->assertSame(1, $called);
}
}
|
