Initial commit

Tests/BlockMelonLoader.Tests.csproj

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+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <Import Project="$(MSBuildExtensionsPath)/$(MSBuildToolsVersion)/Microsoft.Common.props"/>
+ <PropertyGroup>
+  <OutputType>Exe</OutputType><AssemblyName>BlockMelonLoader.Tests</AssemblyName><TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
+  <LangVersion>latest</LangVersion><OutputPath>bin/Release/</OutputPath>
+  <TargetFrameworkRootPath Condition="Exists('../packages/net48/build/.NETFramework/v4.8')">$(MSBuildProjectDirectory)/../packages/net48/build/</TargetFrameworkRootPath>
+  <FrameworkPathOverride Condition="Exists('../packages/net48/build/.NETFramework/v4.8')">$(MSBuildProjectDirectory)/../packages/net48/build/.NETFramework/v4.8</FrameworkPathOverride>
+ </PropertyGroup>
+ <ItemGroup>
+  <Reference Include="mscorlib"><Private>false</Private></Reference>
+  <Reference Include="System"><Private>false</Private></Reference>
+  <Reference Include="System.Core"><Private>false</Private></Reference>
+  <Compile Include="Program.cs"/>
+  <Compile Include="BlockMelonLoaderTests.cs"/>
+  <Compile Include="../LoaderGuard.cs" Link="LoaderGuard.cs"/>
+ </ItemGroup>
+ <Import Project="$(MSBuildToolsPath)/Microsoft.CSharp.targets"/>
+</Project>

Tests/BlockMelonLoaderTests.cs

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+using System;
+using System.Reflection;
+using System.Reflection.Emit;
+using BlockMelonLoader;
+
+internal static class BlockMelonLoaderTests
+{
+    internal static void Run()
+    {
+        var alerts = 0;
+        var terminations = 0;
+        Action<string> alert = message =>
+        {
+            if (!message.Contains("SampleMod") || !message.Contains("Unity Mod Manager"))
+                throw new Exception("Missing mod name or installation guidance.");
+            alerts++;
+        };
+        Action<string> terminate = message =>
+        {
+            if (alerts == 0) throw new Exception("Termination preceded notification.");
+            terminations++;
+        };
+
+        var unrelated = AppDomain.CurrentDomain.DefineDynamicAssembly(
+            new AssemblyName("MelonLoader.Helper"), AssemblyBuilderAccess.Run);
+        LoaderGuard.EnsureAllowed("SampleMod", new[] { typeof(LoaderGuard).Assembly, unrelated }, alert, terminate);
+        if (alerts != 0 || terminations != 0) throw new Exception("Blocked an unrelated assembly.");
+
+        var loader = AppDomain.CurrentDomain.DefineDynamicAssembly(
+            new AssemblyName("melonloader"), AssemblyBuilderAccess.Run);
+        LoaderGuard.EnsureAllowed("SampleMod", new[] { loader }, alert, terminate);
+        if (alerts != 1 || terminations != 1) throw new Exception("MelonLoader was not blocked.");
+
+        try
+        {
+            LoaderGuard.EnsureAllowed("SampleMod", new[] { loader },
+                message => { throw new InvalidOperationException("Dialog unavailable."); },
+                message => terminations++);
+            throw new Exception("Expected the simulated dialog failure.");
+        }
+        catch (InvalidOperationException) { }
+        if (terminations != 2) throw new Exception("Dialog failure bypassed termination.");
+    }
+}

Tests/Program.cs

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+using System;
+
+internal static class Program
+{
+    private static int Main()
+    {
+        try
+        {
+            BlockMelonLoaderTests.Run();
+            Console.WriteLine("BlockMelonLoader tests passed.");
+            return 0;
+        }
+        catch (Exception exception)
+        {
+            Console.Error.WriteLine(exception);
+            return 1;
+        }
+    }
+}