Update tests

LibGit2Sharp.Tests/GlobalSettingsFixture.cs

 using System;
 using System.IO;
+using System.Reflection;
 using System.Text.RegularExpressions;
 using LibGit2Sharp.Core;
 using LibGit2Sharp.Tests.TestHelpers;
@@ -64,12 +65,13 @@ public void LoadFromSpecifiedPath(string architecture)
             var testDir = Path.GetDirectoryName(typeof(GlobalSettingsFixture).Assembly.Location);
             var testAppExe = Path.Combine(testDir, $"NativeLibraryLoadTestApp.{architecture}.exe");
             var tempDir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
-            var platformDir = Path.Combine(tempDir, "plat");
+            var platformDir = Path.Combine(tempDir, "plat", architecture);
+            var libraryPath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "lib", "win32", architecture);
 
             try
             {
-                Directory.CreateDirectory(Path.Combine(platformDir, architecture));
-                File.Copy(Path.Combine(GlobalSettings.NativeLibraryPath, architecture, nativeDllFileName), Path.Combine(platformDir, architecture, nativeDllFileName));
+                Directory.CreateDirectory(platformDir);
+                File.Copy(Path.Combine(libraryPath, nativeDllFileName), Path.Combine(platformDir, nativeDllFileName));
 
                 var (output, exitCode) = ProcessHelper.RunProcess(testAppExe, arguments: $@"{NativeDllName.Name} ""{platformDir}""", workingDirectory: tempDir);
 

NativeLibraryLoadTestApp/TestApp.cs

@@ -11,7 +11,7 @@ public class TestApp
         private static extern IntPtr GetModuleHandle(string path);
 
         [DllImport("kernel32")]
-        private static extern int GetModuleFileName(IntPtr handle, [Out]StringBuilder path, int size);
+        private static extern int GetModuleFileName(IntPtr handle, [Out] StringBuilder path, int size);
 
         static int Main(string[] args)
         {
@@ -23,7 +23,7 @@ static int Main(string[] args)
 
             var moduleName = args[0];
             var loadFromDirectory = args[1];
-            var expectedPath = Path.Combine(loadFromDirectory, (IntPtr.Size == 4) ? "x86" : "x64", moduleName + ".dll");
+            var expectedPath = Path.Combine(loadFromDirectory, moduleName + ".dll");
 
             GlobalSettings.NativeLibraryPath = loadFromDirectory;
             var isValid = Repository.IsValid(Path.GetTempPath());