From eeee9591aa0cdb95ba42e06a3efc5f7da399590f Mon Sep 17 00:00:00 2001
From: mika kuns <mika.kuns@fb-tuning.de>
Date: Fri, 7 Aug 2026 09:24:43 +0200
Subject: [PATCH] test(ui): restore the language settings tests dropped in the
 previous commit

---
 tests/ClaudeDo.Ui.Tests/AppSettingsTests.cs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tests/ClaudeDo.Ui.Tests/AppSettingsTests.cs b/tests/ClaudeDo.Ui.Tests/AppSettingsTests.cs
index ea22d434..e4a19dc4 100644
--- a/tests/ClaudeDo.Ui.Tests/AppSettingsTests.cs
+++ b/tests/ClaudeDo.Ui.Tests/AppSettingsTests.cs
@@ -9,6 +9,23 @@ public class AppSettingsTests
     private static string TempConfigPath() =>
         Path.Combine(Path.GetTempPath(), $"claudedo-uicfg-{Guid.NewGuid():N}.json");
 
+    [Fact]
+    public void Language_defaults_to_empty()
+    {
+        Assert.Equal("", new AppSettings().Language);
+    }
+
+    [Fact]
+    public void Language_round_trips_through_json()
+    {
+        var json = JsonSerializer.Serialize(new AppSettings { Language = "de" });
+
+        var back = JsonSerializer.Deserialize<AppSettings>(json,
+            new JsonSerializerOptions { PropertyNameCaseInsensitive = true })!;
+
+        Assert.Equal("de", back.Language);
+    }
+
     [Fact]
     public void DiffPreferences_DefaultToUnifiedAndNoWrap()
     {