1 files changed, 1 insertions, 3 deletions
diff --git a/vendor/sabre/dav/tests/Sabre/CardDAV/ValidateFilterTest.php b/vendor/sabre/dav/tests/Sabre/CardDAV/ValidateFilterTest.php
index 753efc73d..de7de19cd 100644
--- a/vendor/sabre/dav/tests/Sabre/CardDAV/ValidateFilterTest.php
+++ b/vendor/sabre/dav/tests/Sabre/CardDAV/ValidateFilterTest.php
@@ -4,8 +4,6 @@ declare(strict_types=1);
 
 namespace Sabre\CardDAV;
 
-require_once 'Sabre/CardDAV/AbstractPluginTest.php';
-
 class ValidateFilterTest extends AbstractPluginTest
 {
     /**
@@ -16,7 +14,7 @@ class ValidateFilterTest extends AbstractPluginTest
      * @param string|null $message
      * @dataProvider data
      */
-    public function testFilter($input, $filters, $test, $result, $message = null)
+    public function testFilter($input, $filters, $test, $result, $message = '')
     {
         if ($result) {
             $this->assertTrue($this->plugin->validateFilters($input, $filters, $test), $message);