add tests for a test app with unicode characters in the path

test/dotnet-build.Tests/GivenDotnetBuildBuildsProjects.cs

@@ -0,0 +1,46 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using System;
+using System.IO;
+using FluentAssertions;
+using Microsoft.DotNet.Tools.Test.Utilities;
+using Xunit;
+
+namespace Microsoft.DotNet.Tools.Builder.Tests
+{
+    public class GivenDotnetBuildBuildsProjects : TestBase
+    {
+        [Fact]
+        public void It_builds_projects_with_Unicode_in_path()
+        {
+            var testInstance = TestAssetsManager
+                .CreateTestInstance("TestAppWithUnicodéPath")
+                .WithLockFiles();
+
+            var testProjectDirectory = testInstance.TestRoot;
+
+            var buildCommand = new BuildCommand("");
+            buildCommand.WorkingDirectory = testProjectDirectory;
+            
+            buildCommand.ExecuteWithCapturedOutput()
+                .Should()
+                .Pass();
+        }
+
+        [Fact]
+        public void It_builds_projects_with_Unicode_in_path_project_path_passed()
+        {
+            var testInstance = TestAssetsManager
+                .CreateTestInstance("TestAppWithUnicodéPath")
+                .WithLockFiles();
+
+            var testProject = Path.Combine(testInstance.TestRoot, "project.json");
+
+            new BuildCommand(testProject)
+                .ExecuteWithCapturedOutput()
+                .Should()
+                .Pass();
+        }
+    }
+}