function HtmlToTextTest::testDrupalHtmlToTextBlockTagToNewline

Tests the conversion of block-level HTML tags to plaintext with newlines.

File

core/modules/system/tests/src/Unit/Mail/HtmlToTextTest.php, line 219

Class

HtmlToTextTest

Tests for <a href="/api/drupal/core%21lib%21Drupal%21Core%21Mail%21MailFormatHelper.php/function/MailFormatHelper%3A%3AhtmlToText/11.x" title="Transforms an HTML string into plain text, preserving its structure." class="local">\Drupal\Core\Mail\MailFormatHelper::htmlToText</a>().

Namespace

Code

public function testDrupalHtmlToTextBlockTagToNewline() : void {
    $input = <<<'EOT'
[text]
<blockquote>[blockquote]</blockquote>
<br />[br]
<dl><dt>[dl-dt]</dt>
<dt>[dt]</dt>
<dd>[dd]</dd>
<dd>[dd-dl]</dd></dl>
<h1>[h1]</h1>
<h2>[h2]</h2>
<h3>[h3]</h3>
<h4>[h4]</h4>
<h5>[h5]</h5>
<h6>[h6]</h6>
<hr />[hr]
<ol><li>[ol-li]</li>
<li>[li]</li>
<li>[li-ol]</li></ol>
<p>[p]</p>
<ul><li>[ul-li]</li>
<li>[li-ul]</li></ul>
[text]
EOT;
    $input = str_replace([
        "\r",
        "\n",
    ], '', $input);
    $output = MailFormatHelper::htmlToText($input);
    $this->assertDoesNotMatchRegularExpression('/\\][^\\n]*\\[/s', $output, 'Block-level HTML tags should force newlines');
    $output_upper = mb_strtoupper($output);
    $upper_input = mb_strtoupper($input);
    $upper_output = MailFormatHelper::htmlToText($upper_input);
    $this->assertEquals($output_upper, $upper_output, 'Tag recognition should be case-insensitive');
}