pcm-icon-bundle/tests/Twig/Functions/IconExtensionTest.php

<?php

declare(strict_types=1);

namespace Pcm\IconBundle\Tests\Twig\Functions;

use InvalidArgumentException;
use Pcm\IconBundle\DependencyInjection\PcmIconExtension;
use Pcm\IconBundle\Tests\TestKernel;
use Pcm\IconBundle\Twig\Functions\IconExtension;
use Pcm\IconBundle\Twig\Functions\IconNotFound;
use PHPUnit\Framework\TestCase;

class IconExtensionTest extends TestCase
{
    private const ICON = 'test';

    /**
     * @var IconExtension
     */
    private IconExtension $icon;

    protected function setUp(): void
    {
        $this->icon = new IconExtension(['tests/icons']);
    }

    public function testInstanceOf(): void
    {
        $this->assertInstanceOf(IconExtension::class, $this->icon);
    }

    public function testThrowsIfDirectoriesIsEmpty(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        new IconExtension([]);
    }

    public function testThrowsIfDirectoriesContainsNonString(): void
    {
        $this->expectException(\TypeError::class);
        new IconExtension([99]);
    }


    public function testThrowsIfDirectoriesContainsNonStringAmongStrings(): void
    {
        $this->expectException(\TypeError::class);
        new IconExtension(['string', 99, 'string']);
    }

    public function testThrowsWhenPassedAnInvalidIconName(): void
    {
        $this->expectException(IconNotFound::class);
        $this->icon->renderIcon(['icon' => random_bytes(8)]);
    }

    public function testNoTitleExistsIfNotPassedIn(): void
    {
        $content = $this->icon->renderIcon(['icon' => self::ICON]);
        $this->assertStringNotContainsString('<title>', $content);
        $this->assertStringNotContainsString('</title>', $content);
    }

    public function testTitleGetsAddedIfSpecified(): void
    {
        $title = 'test_title';
        $content = $this->icon->renderIcon(['icon' => self::ICON, 'title' => $title]);
        $this->assertMatchesRegularExpression("/<title>{$title}<\/title>/", $content);
    }

    public function testTitleThrowsIfNotPassedAString(): void
    {
        $this->expectException(\TypeError::class);
        $this->icon->renderIcon(['icon' => self::ICON, 'title' => 99]);
    }

    public function testTitleThrowsIfPassedAnEmptyString():void
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->icon->renderIcon(['icon' => self::ICON, 'title' => '']);
    }

    public function testThrowsWhenPassedNegativeSizeValue(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->icon->renderIcon(['icon' => self::ICON, 'size' => -1]);
    }

    public function testThrowsWhenSizeIsNotAnInt(): void
    {
        $this->expectException(\TypeError::class);
        $this->icon->renderIcon(['icon' => self::ICON, 'size' => 1.0]);
    }

    public function testSvgWidthIsSet(): void
    {
        $regex = '/^<svg.+?width="99"/';
        $content = $this->icon->renderIcon(['icon' => self::ICON, 'size' => 99]);
        $this->assertMatchesRegularExpression($regex, $content);
    }

    public function testSvgHeightIsSet(): void
    {
        $regex = '/^<svg.+?width="99"/';
        $content = $this->icon->renderIcon(['icon' => self::ICON, 'size' => 99]);
        $this->assertMatchesRegularExpression($regex, $content);
    }

    public function testNoXmlDeclarationIsAdded(): void
    {
        $content = $this->icon->renderIcon(['icon' => self::ICON, 'size' => 99]);
        $this->assertStringNotContainsString('<xml', $content);
    }

    public function testOnlyOneWidthAttributeIsSet(): void
    {
        $content = $this->icon->renderIcon(['icon' => self::ICON, 'size' => 99]);
        $timesMatched = preg_match_all('/width="99"/', $content);
        $this->assertSame(1, $timesMatched);
    }

    public function testOnlyOneHeightAttributeIsSet(): void
    {
        $content = $this->icon->renderIcon(['icon' => self::ICON, 'size' => 99]);
        $timesMatched = preg_match_all('/height="99"/', $content);
        $this->assertSame(1, $timesMatched);
    }

    public function testDefaultSizeIsSetOnSvgIfNoSizeOptionPassed(): void
    {
        $defaultSize = IconExtension::DEFAULT_SIZE;
        $content = $this->icon->renderIcon(['icon' => self::ICON]);

        $regex = "/^<svg.+?width=\"{$defaultSize}\"/";
        $this->assertMatchesRegularExpression($regex, $content);

        $regex = "/^<svg.+?height=\"{$defaultSize}\"/";
        $this->assertMatchesRegularExpression($regex, $content);
    }

    public function testDefaultSizeIsOnlySetOnce(): void
    {
        $defaultSize = IconExtension::DEFAULT_SIZE;
        $content = $this->icon->renderIcon(['icon' => self::ICON]);

        $widthRegex = "/width=\"{$defaultSize}\"/";
        $timesMatched = preg_match_all($widthRegex, $content);
        $this->assertSame(1, $timesMatched);

        $heightRegex = "/height=\"{$defaultSize}\"/";
        $timesMatched = preg_match_all($heightRegex, $content);
        $this->assertSame(1, $timesMatched);
    }
}