<?php
namespace HeroQR\Tests\Unit\Customs;
use HeroQR\Customs\ShapeDrawers;
use PHPUnit\Framework\{Attributes\Test, TestCase};
/**
* Class ShapeDrawersTest
* Tests the ShapeDrawers class.
*/
class ShapeDrawersTest extends TestCase
{
private false|\GdImage $image;
private int|false $foregroundColor;
/**
* Setup method
*/
protected function setUp(): void
{
$this->image = imagecreatetruecolor(100, 100);
$this->foregroundColor = imagecolorallocate($this->image, 255, 0, 0);
$backgroundColor = imagecolorallocate($this->image, 255, 255, 255);
imagefill($this->image, 0, 0, $backgroundColor);
}
/**
* TearDown method
*/
protected function tearDown(): void
{
imagedestroy($this->image);
}
/**
* Test drawing a square
*/
#[Test]
public function isCanDrawSquare(): void
{
ShapeDrawers::drawSquare($this->image, 1, 1, 20, $this->foregroundColor);
$coloredPixelCount = $this->countColoredPixels($this->foregroundColor);
$this->assertGreaterThan(50, $coloredPixelCount, "Square shape was not drawn correctly.");
}
/**
* Test drawing a circle
*/
#[Test]
public function isCanDrawCircle(): void
{
ShapeDrawers::drawCircle($this->image, 1, 1, 20, $this->foregroundColor);
$coloredPixelCount = $this->countColoredPixels($this->foregroundColor);
$this->assertGreaterThan(50, $coloredPixelCount, "Circle shape was not drawn correctly.");
}
/**
* Count the number of pixels in the image that match the expected color
*/
private function countColoredPixels(int $expectedColor): int
{
$width = imagesx($this->image);
$height = imagesy($this->image);
$count = 0;
for ($x = 0; $x < $width; $x++) {
for ($y = 0; $y < $height; $y++) {
if (imagecolorat($this->image, $x, $y) === $expectedColor) {
$count++;
}
}
}
return $count;
}
/**
* Test drawing a star.
*/
#[Test]
public function isCanDrawStar(): void
{
ShapeDrawers::drawStar($this->image, 1, 1, 20, $this->foregroundColor);
$coloredPixelCount = $this->countColoredPixels($this->foregroundColor);
$this->assertGreaterThan(50, $coloredPixelCount, "Star shape was not drawn correctly.");
}
/**
* Test drawing a diamond.
*/
#[Test]
public function isCanDrawDiamond(): void
{
ShapeDrawers::drawDiamond($this->image, 1, 1, 20, $this->foregroundColor);
$coloredPixelCount = $this->countColoredPixels($this->foregroundColor);
$this->assertGreaterThan(50, $coloredPixelCount, "Diamond shape was not drawn correctly.");
}
}
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