storage/tests/Storage/Compression/Algorithms/ZstdTest.php at 2ef9c611f9c0321d27d683c2f00a8eb4b295fb6a · utopia-php/storage · GitHub

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<?php

namespace Utopia\Tests\Storage\Compression\Algorithms;

use PHPUnit\Framework\TestCase;
use Utopia\Storage\Compression\Algorithms\Zstd;

class ZstdTest extends TestCase
{
    protected Zstd $object;

    public function setUp(): void
    {
        $this->object = new Zstd();
    }

    public function tearDown(): void
    {
    }

    public function testName(): void
    {
        $this->assertEquals($this->object->getName(), 'zstd');
    }

    public function testCompressDecompressWithText()
    {
        $demo = 'This is a demo string';
        $demoSize = \mb_strlen($demo, '8bit');

        $data = $this->object->compress($demo);
        $dataSize = \mb_strlen($data, '8bit');

        $this->assertEquals(21, $demoSize);
        $this->assertEquals(30, $dataSize);

        $this->assertEquals($demo, $this->object->decompress($data));
    }

    public function testCompressDecompressWithLargeText()
    {
        $demo = \file_get_contents(__DIR__.'/../../../resources/disk-a/lorem.txt');
        $demoSize = mb_strlen($demo, '8bit');

        $data = $this->object->compress($demo);
        $dataSize = mb_strlen($data, '8bit');

        $this->assertEquals($demoSize, 386795);
        $this->assertEquals($dataSize, 56324);

        $this->assertGreaterThan($dataSize, $demoSize);

        $data = $this->object->decompress($data);
        $dataSize = mb_strlen($data, '8bit');

        $this->assertEquals($dataSize, 386795);
    }

    public function testCompressDecompressWithJPGImage()
    {
        $demo = \file_get_contents(__DIR__.'/../../../resources/disk-a/kitten-1.jpg');
        $demoSize = \mb_strlen($demo, '8bit');

        $data = $this->object->compress($demo);
        $dataSize = \mb_strlen($data, '8bit');

        $this->assertEquals(599639, $demoSize);
        $this->assertEquals(599663, $dataSize);

        $this->assertGreaterThan($demoSize, $dataSize);

        $data = $this->object->decompress($data);
        $dataSize = \mb_strlen($data, '8bit');

        $this->assertEquals(599639, $dataSize);
    }

    public function testCompressDecompressWithPNGImage()
    {
        $demo = \file_get_contents(__DIR__.'/../../../resources/disk-b/kitten-1.png');
        $demoSize = \mb_strlen($demo, '8bit');

        $data = $this->object->compress($demo);
        $dataSize = \mb_strlen($data, '8bit');

        $this->assertEquals(3038056, $demoSize);
        $this->assertEquals(3038138, $dataSize);

        $this->assertGreaterThan($demoSize, $dataSize);

        $data = $this->object->decompress($data);
        $dataSize = \mb_strlen($data, '8bit');

        $this->assertEquals(3038056, $dataSize);
    }
}