1 files changed, 11 insertions, 0 deletions
diff --git a/tests/unit/lib/VisualTest.php b/tests/unit/lib/VisualTest.php
index c62cd05..ae9263f 100644
--- a/tests/unit/lib/VisualTest.php
+++ b/tests/unit/lib/VisualTest.php
@@ -21,6 +21,7 @@ class VisualFunctionsTest extends \Codeception\Test\Unit
         static $config = [
             'LOAD_EXTERNAL_MEDIA' => 'allow',
             'OPENGRAPH_ENABLE'    => false,
+            'CONVERT_IDNA_URL'    => true,
         ];
 
         Config::set(new Config($config));
@@ -224,6 +225,16 @@ class VisualFunctionsTest extends \Codeception\Test\Unit
         $this->assertEquals($expected, formatReady($input));
     }
 
+    public function testIdnaLink()
+    {
+        $input = htmlentities('https://www.täst-dömäne-mit-ümläuten.de');
+
+        $this->assertEquals(
+            'https://www.xn--tst-dmne-mit-mluten-gwbfj61b7e.de',
+            idna_link($input)
+        );
+    }
+
     private function wrap($string)
     {
         return sprintf(FORMATTED_CONTENT_WRAPPER, $string);