Initial Commit

tests/Decky.Core.Tests/JsonSettingsServiceTests.cs

@@ -0,0 +1,75 @@
+using Decky.Core.Models;
+using Decky.Core.Services;
+
+namespace Decky.Core.Tests;
+
+public sealed class JsonSettingsServiceTests : IDisposable
+{
+    private readonly string _testDirectory = Path.Combine(
+        Path.GetTempPath(),
+        $"Decky.Tests.{Guid.NewGuid():N}");
+
+    [Fact]
+    public async Task LoadAsync_returns_defaults_when_file_does_not_exist()
+    {
+        using var service = CreateService();
+
+        var settings = await service.LoadAsync();
+
+        Assert.Equal(30, settings.RefreshIntervalSeconds);
+        Assert.Empty(settings.OpenBoardTabs);
+    }
+
+    [Fact]
+    public async Task SaveAsync_round_trips_connection_and_board_settings()
+    {
+        using var service = CreateService();
+        var expected = new AppSettings
+        {
+            ServerUrl = "https://cloud.example.test/",
+            Username = "elijah",
+            ApiPath = "index.php/apps/deck/api/v1.0/",
+            OpenBoardTabs = [17],
+            Boards = new Dictionary<int, BoardViewSettings>
+            {
+                [17] = new() { Orientation = BoardOrientation.Vertical },
+            },
+        };
+
+        await service.SaveAsync(expected);
+        var actual = await service.LoadAsync();
+
+        Assert.Equal(expected.ServerUrl, actual.ServerUrl);
+        Assert.Equal(expected.Username, actual.Username);
+        Assert.Equal(expected.ApiPath, actual.ApiPath);
+        Assert.Equal([17], actual.OpenBoardTabs);
+        Assert.Equal(BoardOrientation.Vertical, actual.Boards[17].Orientation);
+        Assert.DoesNotContain("password", await File.ReadAllTextAsync(GetSettingsPath()), StringComparison.OrdinalIgnoreCase);
+    }
+
+    [Fact]
+    public async Task LoadAsync_preserves_corrupt_file_and_returns_defaults()
+    {
+        Directory.CreateDirectory(_testDirectory);
+        await File.WriteAllTextAsync(GetSettingsPath(), "{ definitely not json }");
+        using var service = CreateService();
+
+        var settings = await service.LoadAsync();
+
+        Assert.Equal(string.Empty, settings.ServerUrl);
+        Assert.False(File.Exists(GetSettingsPath()));
+        Assert.Single(Directory.GetFiles(_testDirectory, "settings.corrupt-*.json"));
+    }
+
+    private JsonSettingsService CreateService() => new(GetSettingsPath());
+
+    private string GetSettingsPath() => Path.Combine(_testDirectory, "settings.json");
+
+    public void Dispose()
+    {
+        if (Directory.Exists(_testDirectory))
+        {
+            Directory.Delete(_testDirectory, recursive: true);
+        }
+    }
+}