From 0e5ad52d5e45d85ca2adf9bb8a7bcc471858cd14 Mon Sep 17 00:00:00 2001
From: kenjis <kenji.uui@gmail.com>
Date: Wed, 6 Dec 2023 15:27:19 +0900
Subject: [PATCH] test: add test for get_filenames()

---
 tests/system/Helpers/FilesystemHelperTest.php | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tests/system/Helpers/FilesystemHelperTest.php b/tests/system/Helpers/FilesystemHelperTest.php
index e92505cc8a91..469c3bf74833 100644
--- a/tests/system/Helpers/FilesystemHelperTest.php
+++ b/tests/system/Helpers/FilesystemHelperTest.php
@@ -396,6 +396,31 @@ public function testGetFilenamesFailure(): void
         $this->assertSame([], get_filenames(SUPPORTPATH . 'Files/shaker/'));
     }
 
+    public function testGetFilenamesWithSymlinks(): void
+    {
+        $targetDir = APPPATH . 'Language';
+        $linkDir   = APPPATH . 'Controllers/Language';
+        file_exists($linkDir) && unlink($linkDir);
+        symlink($targetDir, $linkDir);
+
+        $targetFile = APPPATH . 'Common.php';
+        $linkFile   = APPPATH . 'Controllers/Common.php';
+        file_exists($linkFile) && unlink($linkFile);
+        symlink($targetFile, $linkFile);
+
+        $this->assertSame([
+            0 => 'BaseController.php',
+            1 => 'Common.php',
+            2 => 'Home.php',
+            3 => 'Language',
+            4 => 'Validation.php',
+            5 => 'en',
+        ], get_filenames(APPPATH . 'Controllers'));
+
+        unlink($linkDir);
+        unlink($linkFile);
+    }
+
     public function testGetDirFileInfo(): void
     {
         $file = SUPPORTPATH . 'Files/baker/banana.php';