xxx/tests/php/Unit/EntitiesTest.php

<?php
namespace Xxx\Tests\Unit;

use Xxx\Tests\Support\TestCase;

// html_entity_decode_full() and convert_entity() in lib/convert_entities.inc.php
class EntitiesTest extends TestCase {
  public function testNamedEntitiesAreDecoded(): void {
    $this->assertSame("Wait\u{2026} \u{2014} \u{201C}yes\u{201D}", html_entity_decode_full('Wait&hellip; &mdash; &ldquo;yes&rdquo;'));
  }

  public function testNumericEntitiesAreDecoded(): void {
    $this->assertSame("\u{2013} A", html_entity_decode_full('&#8211; &#x41;'));
  }

  public function testTheXmlEntitiesAreDecoded(): void {
    $this->assertSame('<a> & "b"', html_entity_decode_full('&lt;a&gt; &amp; &quot;b&quot;'));
  }

  public function testSingleQuotesStayEncodedByDefault(): void {
    $this->assertSame('&#039;', html_entity_decode_full('&#039;'));
    $this->assertSame("'", html_entity_decode_full('&#039;', ENT_QUOTES));
  }

  public function testUnknownEntitiesAreDropped(): void {
    $this->assertSame('ab', html_entity_decode_full('a&bogus;b'));
  }

  public function testEntityNamesAreCaseSensitive(): void {
    $this->assertSame("\u{00E8}\u{00C8}", html_entity_decode_full('&egrave;&Egrave;'));
  }

  public function testConvertEntity(): void {
    $this->assertSame('&#8230;', convert_entity(array('&hellip;', 'hellip')));
    $this->assertSame('', convert_entity(array('&bogus;', 'bogus')));
    $this->assertSame('&bogus;', convert_entity(array('&bogus;', 'bogus'), FALSE));
  }

  public function testTextWithoutEntitiesIsUnchanged(): void {
    $this->assertSame('Plain & simple? No: plain.', html_entity_decode_full('Plain & simple? No: plain.'));
  }
}