From 9c1427c036521be5d9127b813bdf51ddcf839345 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Suwi=C5=84ski?= <dracono@wp.pl>
Date: Tue, 24 May 2022 16:17:12 +0200
Subject: [PATCH] fallback to default on post filter empty basename

---
 src/FileNameFilter.php           |  2 +-
 tests/php/FileNameFilterTest.php | 11 +++++++++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/FileNameFilter.php b/src/FileNameFilter.php
index dea13ee7..485ca46a 100644
--- a/src/FileNameFilter.php
+++ b/src/FileNameFilter.php
@@ -81,7 +81,7 @@ public function filter($name)
 
         // Safeguard against empty file names
         $nameWithoutExt = pathinfo($name ?? '', PATHINFO_FILENAME);
-        if (empty($nameWithoutExt)) {
+        if ($name === $ext || empty($nameWithoutExt)) {
             $name = $this->getDefaultName();
             $name .= $ext ? '.' . $ext : '';
         }
diff --git a/tests/php/FileNameFilterTest.php b/tests/php/FileNameFilterTest.php
index 37727e56..e5f986f6 100644
--- a/tests/php/FileNameFilterTest.php
+++ b/tests/php/FileNameFilterTest.php
@@ -59,9 +59,11 @@ public function testFilterWithCustomRules()
         );
     }
 
-    public function testFilterWithEmptyString()
+    /**
+     * @dataProvider providerFilterWithEmptyString
+     */
+    public function testFilterWithEmptyString($name)
     {
-        $name = 'ö ö ö.jpg';
         $filter = new FileNameFilter();
         $filter->setTransliterator(new Transliterator());
         $result = $filter->filter($name);
@@ -78,6 +80,11 @@ public function testFilterWithEmptyString()
         );
     }
 
+    public function providerFilterWithEmptyString()
+    {
+        return [['ö ö ö.jpg'], ['新しいファイル.jpg']];
+    }
+
     public function testUnderscoresStartOfNameRemoved()
     {
         $name = '_test.txt';