PHP Decode

<?php

use Spatie\MediaLibrary\ResponsiveImages\WidthCalculator\FileSizeOptimizedWidthCalculator;

it('can calculate the optimized widths from a file', function () {
    $dimensions = (new FileSizeOptimizedWidthCalculator)->calculateWidthsFromFile($this->getTestJpg());

    $this->assertEquals([
        0 => 340,
        1 => 284,
        2 => 237,
    ], $dimensions->toArray());

    $dimensions = (new FileSizeOptimizedWidthCalculator)->calculateWidthsFromFile($this->getSmallTestJpg());

    $this->assertEquals([
        0 => 150,
    ], $dimensions->toArray());
});

it('can calculate the optimized widths for different dimensions', function () {
    $dimensions = (new FileSizeOptimizedWidthCalculator)->calculateWidths(300 * 1024, 300, 200);

    $this->assertEquals([
        0 => 300,
        1 => 250,
        2 => 210,
        3 => 175,
        4 => 147,
        5 => 122,
        6 => 102,
        7 => 86,
        8 => 72,
        9 => 60,
    ], $dimensions->toArray());

    $dimensions = (new FileSizeOptimizedWidthCalculator)->calculateWidths(3000 * 1024, 2400, 1800);

    $this->assertEquals([
        0 => 2400,
        1 => 2007,
        2 => 1680,
        3 => 1405,
        4 => 1176,
        5 => 983,
        6 => 823,
        7 => 688,
        8 => 576,
        9 => 482,
        10 => 403,
        11 => 337,
        12 => 282,
        13 => 236,
        14 => 197,
        15 => 165,
    ], $dimensions->toArray());

    $dimensions = (new FileSizeOptimizedWidthCalculator)->calculateWidths(12000 * 1024, 8200, 5500);

    $this->assertEquals([
        0 => 8200,
        1 => 6860,
        2 => 5740,
        3 => 4802,
        4 => 4017,
        5 => 3361,
        6 => 2812,
        7 => 2353,
        8 => 1968,
        9 => 1647,
        10 => 1378,
        11 => 1153,
        12 => 964,
        13 => 807,
        14 => 675,
        15 => 565,
        16 => 472,
        17 => 395,
        18 => 330,
        19 => 276,
    ], $dimensions->toArray());
});
 ?>