Upgraded to .NET 10 (#1147)

app/Tests/Tools/PluginSystem/InternalPluginResourcesTests.cs

@@ -0,0 +1,29 @@
+using System.Reflection;
+
+using AIStudio.Tools.PluginSystem;
+
+using Microsoft.Extensions.FileProviders;
+
+namespace AIStudio.Tests.Tools.PluginSystem;
+
+/// <summary>
+/// Checks that the release finds the plugins which ship with AI Studio, such as the language plugins.
+/// </summary>
+/// <remarks>
+/// A debug build reads these plugins from the source tree, while the release copies them out of the
+/// files embedded into the app. A plugin which is missing there would leave the release without its
+/// language, and only an error in the log would tell.
+/// </remarks>
+[TestFixture]
+public sealed class InternalPluginResourcesTests
+{
+    [Test]
+    public void EveryInternalPluginIsEmbedded([Values] InternalPlugin plugin)
+    {
+        var embeddedPlugins = new ManifestEmbeddedFileProvider(Assembly.GetAssembly(type: typeof(Program))!, "Plugins");
+        var mainFile = embeddedPlugins.GetFileInfo($"{plugin.MetaData().ResourcePath}/plugin.lua");
+
+        Assert.That(mainFile.Exists, Is.True, $"The release would not find the plugin {plugin}, since it is not among the embedded files.");
+        Assert.That(mainFile.Length, Is.GreaterThan(0), $"The release would find the plugin {plugin} empty.");
+    }
+}