Add test for handling dangling symlinks

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/Jellyfin.Server.Implementations.Tests/IO/ManagedFileSystemTests.cs b/tests/Jellyfin.Server.Implementations.Tests/IO/ManagedFileSystemTests.cs
index 671c59b2e..5a535ac51 100644
--- a/tests/Jellyfin.Server.Implementations.Tests/IO/ManagedFileSystemTests.cs
+++ b/tests/Jellyfin.Server.Implementations.Tests/IO/ManagedFileSystemTests.cs
@@ -1,3 +1,7 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.IO;
+using System.Runtime.InteropServices;
 using AutoFixture;
 using AutoFixture.AutoMoq;
 using Emby.Server.Implementations.IO;
@@ -38,5 +42,26 @@ namespace Jellyfin.Server.Implementations.Tests.IO
                 Assert.Equal(expectedAbsolutePath, generatedPath);
             }
         }
+
+        [SkippableFact]
+        public void GetFileInfo_DanglingSymlink_ExistsFalse()
+        {
+            Skip.If(RuntimeInformation.IsOSPlatform(OSPlatform.Windows));
+
+            string testFileDir = Path.Combine(Path.GetTempPath(), "jellyfin-test-data");
+            string testFileName = Path.Combine(testFileDir, Path.GetRandomFileName() + "-danglingsym.link");
+
+            Directory.CreateDirectory(testFileDir);
+            Assert.Equal(0, symlink("thispathdoesntexist", testFileName));
+            Assert.True(File.Exists(testFileName));
+
+            var metadata = _sut.GetFileInfo(testFileName);
+            Assert.False(metadata.Exists);
+        }
+
+        [SuppressMessage("Naming Rules", "SA1300:ElementMustBeginWithUpperCaseLetter", Justification = "Have to")]
+        [DllImport("libc", SetLastError = true, CharSet = CharSet.Ansi)]
+        [DefaultDllImportSearchPaths(DllImportSearchPath.UserDirectories)]
+        private static extern int symlink(string target, string linkpath);
     }
 }