FilterHtmlTest.php

<?php

namespace Drupal\Tests\filter\Unit;

use Drupal\Tests\UnitTestCase;
use Drupal\filter\Plugin\Filter\FilterHtml;

/**
 * @coversDefaultClass \Drupal\filter\Plugin\Filter\FilterHtml
 * @group filter
 */
class FilterHtmlTest extends UnitTestCase {
    
    /**
     * @var \Drupal\filter\Plugin\Filter\FilterHtml
     */
    protected $filter;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $configuration['settings'] = [
            'allowed_html' => '<a href> <p> <em> <strong> <cite> <blockquote> <code class="pretty boring align-*"> <ul alpaca-*="wooly-* strong"> <ol llama-*> <li> <dl> <dt> <dd> <br> <h3 id>',
            'filter_html_help' => 1,
            'filter_html_nofollow' => 0,
        ];
        $this->filter = new FilterHtml($configuration, 'filter_html', [
            'provider' => 'test',
        ]);
        $this->filter
            ->setStringTranslation($this->getStringTranslationStub());
    }
    
    /**
     * @covers ::filterAttributes
     *
     * @dataProvider providerFilterAttributes
     *
     * @param string $html
     *   Input HTML.
     * @param string $expected
     *   The expected output string.
     */
    public function testfilterAttributes($html, $expected) {
        $this->assertSame($expected, $this->filter
            ->filterAttributes($html));
    }
    
    /**
     * Provides data for testfilterAttributes.
     *
     * @return array
     *   An array of test data.
     */
    public function providerFilterAttributes() {
        return [
            [
                '<a href="/blog" title="Blog">Blog</a>',
                '<a href="/blog">Blog</a>',
            ],
            [
                '<p dir="rtl" />',
                '<p dir="rtl"></p>',
            ],
            [
                '<p dir="bogus" />',
                '<p></p>',
            ],
            [
                '<p id="first" />',
                '<p></p>',
            ],
            // The addition of xml:lang isn't especially desired, but is still valid
            // HTML5. See https://www.drupal.org/node/1333730.
[
                '<p id="first" lang="en">text</p>',
                '<p lang="en" xml:lang="en">text</p>',
            ],
            [
                '<p style="display: none;" />',
                '<p></p>',
            ],
            [
                '<code class="pretty invalid">foreach ($a as $b) {}</code>',
                '<code class="pretty">foreach ($a as $b) {}</code>',
            ],
            [
                '<code class="boring pretty">foreach ($a as $b) {}</code>',
                '<code class="boring pretty">foreach ($a as $b) {}</code>',
            ],
            [
                '<code class="boring    pretty ">foreach ($a as $b) {}</code>',
                '<code class="boring pretty">foreach ($a as $b) {}</code>',
            ],
            [
                '<code class="invalid alpaca">foreach ($a as $b) {}</code>',
                '<code>foreach ($a as $b) {}</code>',
            ],
            [
                '<h3 class="big">a heading</h3>',
                '<h3>a heading</h3>',
            ],
            [
                '<h3 id="first">a heading</h3>',
                '<h3 id="first">a heading</h3>',
            ],
            // Wildcard value. Case matters, so upper case doesn't match.
[
                '<code class="align-left bold">foreach ($a as $b) {}</code>',
                '<code class="align-left">foreach ($a as $b) {}</code>',
            ],
            [
                '<code class="align-right ">foreach ($a as $b) {}</code>',
                '<code class="align-right">foreach ($a as $b) {}</code>',
            ],
            [
                '<code class="Align-right ">foreach ($a as $b) {}</code>',
                '<code>foreach ($a as $b) {}</code>',
            ],
            // Wildcard name, case is ignored.
[
                '<ol style="display: none;" llama-wim="noble majestic"></ol>',
                '<ol llama-wim="noble majestic"></ol>',
            ],
            [
                '<ol style="display: none;" LlamA-Wim="majestic"></ol>',
                '<ol llama-wim="majestic"></ol>',
            ],
            [
                '<ol style="display: none;" llama-="noble majestic"></ol>',
                '<ol llama-="noble majestic"></ol>',
            ],
            // Both wildcard names and values.
[
                '<ul style="display: none;" alpaca-wool="wooly-warm strong majestic"></ul>',
                '<ul alpaca-wool="wooly-warm strong"></ul>',
            ],
        ];
    }
    
    /**
     * @covers ::setConfiguration
     */
    public function testSetConfiguration() {
        $configuration['settings'] = [
            // New lines and spaces are replaced with a single space.
'allowed_html' => "<a>  <br>\r\n  <p>",
            'filter_html_help' => 1,
            'filter_html_nofollow' => 0,
        ];
        $filter = new FilterHtml($configuration, 'filter_html', [
            'provider' => 'test',
        ]);
        $this->assertSame('<a> <br> <p>', $filter->getConfiguration()['settings']['allowed_html']);
    }

}