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Edit File: MaskUtilTest.php

<?php
declare(strict_types = 1);

namespace BaconQrCodeTest\Encoder;

use BaconQrCode\Encoder\ByteMatrix;
use BaconQrCode\Encoder\MaskUtil;
use PHPUnit\Framework\TestCase;

class MaskUtilTest extends TestCase
{
    public function dataMaskBits() : array
    {
        return [
            [0, [
                [1, 0, 1, 0, 1, 0],
                [0, 1, 0, 1, 0, 1],
                [1, 0, 1, 0, 1, 0],
                [0, 1, 0, 1, 0, 1],
                [1, 0, 1, 0, 1, 0],
                [0, 1, 0, 1, 0, 1],
            ]],
            [1, [
                [1, 1, 1, 1, 1, 1],
                [0, 0, 0, 0, 0, 0],
                [1, 1, 1, 1, 1, 1],
                [0, 0, 0, 0, 0, 0],
                [1, 1, 1, 1, 1, 1],
                [0, 0, 0, 0, 0, 0],
            ]],
            [2, [
                [1, 0, 0, 1, 0, 0],
                [1, 0, 0, 1, 0, 0],
                [1, 0, 0, 1, 0, 0],
                [1, 0, 0, 1, 0, 0],
                [1, 0, 0, 1, 0, 0],
                [1, 0, 0, 1, 0, 0],
            ]],
            [3, [
                [1, 0, 0, 1, 0, 0],
                [0, 0, 1, 0, 0, 1],
                [0, 1, 0, 0, 1, 0],
                [1, 0, 0, 1, 0, 0],
                [0, 0, 1, 0, 0, 1],
                [0, 1, 0, 0, 1, 0],
            ]],
            [4, [
                [1, 1, 1, 0, 0, 0],
                [1, 1, 1, 0, 0, 0],
                [0, 0, 0, 1, 1, 1],
                [0, 0, 0, 1, 1, 1],
                [1, 1, 1, 0, 0, 0],
                [1, 1, 1, 0, 0, 0],
            ]],
            [5, [
                [1, 1, 1, 1, 1, 1],
                [1, 0, 0, 0, 0, 0],
                [1, 0, 0, 1, 0, 0],
                [1, 0, 1, 0, 1, 0],
                [1, 0, 0, 1, 0, 0],
                [1, 0, 0, 0, 0, 0],
            ]],
            [6, [
                [1, 1, 1, 1, 1, 1],
                [1, 1, 1, 0, 0, 0],
                [1, 1, 0, 1, 1, 0],
                [1, 0, 1, 0, 1, 0],
                [1, 0, 1, 1, 0, 1],
                [1, 0, 0, 0, 1, 1],
            ]],
            [7, [
                [1, 0, 1, 0, 1, 0],
                [0, 0, 0, 1, 1, 1],
                [1, 0, 0, 0, 1, 1],
                [0, 1, 0, 1, 0, 1],
                [1, 1, 1, 0, 0, 0],
                [0, 1, 1, 1, 0, 0],
            ]],
        ];
    }

/**
     * @dataProvider dataMaskBits
     */
    public function testGetDatMaskBit(int $maskPattern, array $expected) : void
    {
        for ($x = 0; $x < 6; ++$x) {
            for ($y = 0; $y < 6; ++$y) {
                $this->assertSame(
                    1 === $expected[$y][$x],
                    MaskUtil::getDataMaskBit($maskPattern, $x, $y)
                );
            }
        }
    }

public function testApplyMaskPenaltyRule1() : void
    {
        $matrix = new ByteMatrix(4, 1);
        $matrix->set(0, 0, 0);
        $matrix->set(1, 0, 0);
        $matrix->set(2, 0, 0);
        $matrix->set(3, 0, 0);

$this->assertSame(0, MaskUtil::applyMaskPenaltyRule1($matrix));

// Horizontal
        $matrix = new ByteMatrix(6, 1);
        $matrix->set(0, 0, 0);
        $matrix->set(1, 0, 0);
        $matrix->set(2, 0, 0);
        $matrix->set(3, 0, 0);
        $matrix->set(4, 0, 0);
        $matrix->set(5, 0, 1);
        $this->assertSame(3, MaskUtil::applyMaskPenaltyRule1($matrix));
        $matrix->set(5, 0, 0);
        $this->assertSame(4, MaskUtil::applyMaskPenaltyRule1($matrix));

// Vertical
        $matrix = new ByteMatrix(1, 6);
        $matrix->set(0, 0, 0);
        $matrix->set(0, 1, 0);
        $matrix->set(0, 2, 0);
        $matrix->set(0, 3, 0);
        $matrix->set(0, 4, 0);
        $matrix->set(0, 5, 1);
        $this->assertSame(3, MaskUtil::applyMaskPenaltyRule1($matrix));
        $matrix->set(0, 5, 0);
        $this->assertSame(4, MaskUtil::applyMaskPenaltyRule1($matrix));
    }

public function testApplyMaskPenaltyRule2() : void
    {
        $matrix = new ByteMatrix(1, 1);
        $matrix->set(0, 0, 0);
        $this->assertSame(0, MaskUtil::applyMaskPenaltyRule2($matrix));

$matrix = new ByteMatrix(2, 2);
        $matrix->set(0, 0, 0);
        $matrix->set(1, 0, 0);
        $matrix->set(0, 1, 0);
        $matrix->set(1, 1, 1);
        $this->assertSame(0, MaskUtil::applyMaskPenaltyRule2($matrix));

$matrix = new ByteMatrix(2, 2);
        $matrix->set(0, 0, 0);
        $matrix->set(1, 0, 0);
        $matrix->set(0, 1, 0);
        $matrix->set(1, 1, 0);
        $this->assertSame(3, MaskUtil::applyMaskPenaltyRule2($matrix));

$matrix = new ByteMatrix(3, 3);
        $matrix->set(0, 0, 0);
        $matrix->set(1, 0, 0);
        $matrix->set(2, 0, 0);
        $matrix->set(0, 1, 0);
        $matrix->set(1, 1, 0);
        $matrix->set(2, 1, 0);
        $matrix->set(0, 2, 0);
        $matrix->set(1, 2, 0);
        $matrix->set(2, 2, 0);
        $this->assertSame(3 * 4, MaskUtil::applyMaskPenaltyRule2($matrix));
    }

public function testApplyMaskPenalty3() : void
    {
        // Horizontal 00001011101
        $matrix = new ByteMatrix(11, 1);
        $matrix->set(0, 0, 0);
        $matrix->set(1, 0, 0);
        $matrix->set(2, 0, 0);
        $matrix->set(3, 0, 0);
        $matrix->set(4, 0, 1);
        $matrix->set(5, 0, 0);
        $matrix->set(6, 0, 1);
        $matrix->set(7, 0, 1);
        $matrix->set(8, 0, 1);
        $matrix->set(9, 0, 0);
        $matrix->set(10, 0, 1);
        $this->assertSame(40, MaskUtil::applyMaskPenaltyRule3($matrix));

// Horizontal 10111010000
        $matrix = new ByteMatrix(11, 1);
        $matrix->set(0, 0, 1);
        $matrix->set(1, 0, 0);
        $matrix->set(2, 0, 1);
        $matrix->set(3, 0, 1);
        $matrix->set(4, 0, 1);
        $matrix->set(5, 0, 0);
        $matrix->set(6, 0, 1);
        $matrix->set(7, 0, 0);
        $matrix->set(8, 0, 0);
        $matrix->set(9, 0, 0);
        $matrix->set(10, 0, 0);
        $this->assertSame(40, MaskUtil::applyMaskPenaltyRule3($matrix));

// Vertical 00001011101
        $matrix = new ByteMatrix(1, 11);
        $matrix->set(0, 0, 0);
        $matrix->set(0, 1, 0);
        $matrix->set(0, 2, 0);
        $matrix->set(0, 3, 0);
        $matrix->set(0, 4, 1);
        $matrix->set(0, 5, 0);
        $matrix->set(0, 6, 1);
        $matrix->set(0, 7, 1);
        $matrix->set(0, 8, 1);
        $matrix->set(0, 9, 0);
        $matrix->set(0, 10, 1);
        $this->assertSame(40, MaskUtil::applyMaskPenaltyRule3($matrix));

// Vertical 10111010000
        $matrix = new ByteMatrix(1, 11);
        $matrix->set(0, 0, 1);
        $matrix->set(0, 1, 0);
        $matrix->set(0, 2, 1);
        $matrix->set(0, 3, 1);
        $matrix->set(0, 4, 1);
        $matrix->set(0, 5, 0);
        $matrix->set(0, 6, 1);
        $matrix->set(0, 7, 0);
        $matrix->set(0, 8, 0);
        $matrix->set(0, 9, 0);
        $matrix->set(0, 10, 0);
        $this->assertSame(40, MaskUtil::applyMaskPenaltyRule3($matrix));
    }

public function testApplyMaskPenaltyRule4() : void
    {
        // Dark cell ratio = 0%
        $matrix = new ByteMatrix(1, 1);
        $matrix->set(0, 0, 0);
        $this->assertSame(100, MaskUtil::applyMaskPenaltyRule4($matrix));

// Dark cell ratio = 5%
        $matrix = new ByteMatrix(2, 1);
        $matrix->set(0, 0, 0);
        $matrix->set(0, 0, 1);
        $this->assertSame(0, MaskUtil::applyMaskPenaltyRule4($matrix));

// Dark cell ratio = 66.67%
        $matrix = new ByteMatrix(6, 1);
        $matrix->set(0, 0, 0);
        $matrix->set(1, 0, 1);
        $matrix->set(2, 0, 1);
        $matrix->set(3, 0, 1);
        $matrix->set(4, 0, 1);
        $matrix->set(5, 0, 0);
        $this->assertSame(30, MaskUtil::applyMaskPenaltyRule4($matrix));
    }
}

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