function MailFormatHelperTest::testWrapMail

@covers ::wrapMail

File

core/tests/Drupal/Tests/Core/Mail/MailFormatHelperTest.php, line 21

Class

MailFormatHelperTest

@coversDefaultClass \Drupal\Core\Mail\MailFormatHelper @group Mail

Namespace

Code

public function testWrapMail() : void {
    $delimiter = "End of header\n";
    $long_file_name = $this->randomMachineName(64) . '.docx';
    $headers_in_body = 'Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document; name="' . $long_file_name . "\"\n";
    $headers_in_body .= "Content-Transfer-Encoding: base64\n";
    $headers_in_body .= 'Content-Disposition: attachment; filename="' . $long_file_name . "\"\n";
    $headers_in_body .= 'Content-Description: ' . $this->randomMachineName(64);
    $body = $this->randomMachineName(76) . ' ' . $this->randomMachineName(6);
    $wrapped_text = MailFormatHelper::wrapMail($headers_in_body . $delimiter . $body);
    [
        $processed_headers,
        $processed_body,
    ] = explode($delimiter, $wrapped_text);
    // Check that the body headers were not wrapped even though some exceeded
    // 77 characters.
    $this->assertEquals($headers_in_body, $processed_headers, 'Headers in the body are not wrapped.');
    // Check that the body text is soft-wrapped according to the
    // "format=flowed; delsp=yes" encoding. When interpreting this encoding,
    // mail readers will delete a space at the end of the line; therefore an
    // extra trailing space should be present in the raw body (see RFC 3676).
    $this->assertEquals(wordwrap($body, 77, "  \n"), $processed_body, 'Body text is soft-wrapped.');
}