TMP: analyze interop issue

Author: tvdijen

tests/SAML2/Type/AnyURIListValueTest.php

@@ -11,6 +11,8 @@
 use SimpleSAML\SAML2\Type\AnyURIListValue;
 use SimpleSAML\XMLSchema\Exception\SchemaViolationException;
 
+use function strval;
+
 /**
  * Class \SimpleSAML\Test\SAML2\Type\AnyURIListTest
  *
@@ -46,6 +48,16 @@ public function testToArray(): void
     }
 
 
+    /**
+     * Test stringification of AnyURIListValue
+     */
+    public function testToString(): void
+    {
+        $anyURIList = AnyURIListValue::fromString("urn:x-simplesamlphp:namespace urn:x-ssp:ns");
+        $this->assertEquals('urn:x-simplesamlphp:namespace urn:x-ssp:ns', strval($anyURIList));
+    }
+
+
     /**
      * @return array<string, array{0: true, 1: string}>
      */