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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Event\Telemetry;
use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\Attributes\Small;
use PHPUnit\Framework\TestCase;
#[CoversClass(MemoryUsage::class)]
#[Small]
final class MemoryUsageTest extends TestCase
{
public static function provideValidBytes(): array
{
return [
'int-less-than-zero' => [-1],
'int-zero' => [0],
'int-greater-than-zero' => [1],
];
}
#[DataProvider('provideValidBytes')]
public function testFromBytesReturnsMemoryUsage(int $bytes): void
{
$memoryUsage = MemoryUsage::fromBytes($bytes);
$this->assertSame($bytes, $memoryUsage->bytes());
}
public function testDiffReturnsMemoryUsage(): void
{
$one = MemoryUsage::fromBytes(2000);
$two = MemoryUsage::fromBytes(3000);
$diff = $one->diff($two);
$this->assertNotSame($one, $diff);
$this->assertNotSame($two, $diff);
$this->assertSame($one->bytes() - $two->bytes(), $diff->bytes());
}
}
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