Adding a dotnet run test that outputs unicode characters.

TestAssets/TestProjects/TestAppWithUnicodéPath/Program.cs

@@ -6,7 +6,7 @@ namespace ConsoleApplication
     {
         public static void Main(string[] args)
         {
-            Console.WriteLine("Hello World!");
+            Console.WriteLine("Hélló Wórld!");
         }
     }
 }

test/dotnet-run.Tests/RunTests.cs

@@ -68,6 +68,19 @@ namespace Microsoft.DotNet.Tools.Run.Tests
             new RunCommand(instance.TestRoot).Execute().Should().Pass();
         }
 
+        [Fact]
+        public void ItRunsAppsThatOutputUnicodeCharacters()
+        {
+            TestInstance instance = TestAssetsManager.CreateTestInstance("TestAppWithUnicodéPath")
+                                                     .WithLockFiles()
+                                                     .WithBuildArtifacts();
+            new RunCommand(instance.TestRoot)
+                .ExecuteWithCapturedOutput()
+                .Should()
+                .Pass()
+                .And
+                .HaveStdOutContaining("Hélló Wórld!");
+        }
 
         private void CopyProjectToTempDir(string projectDir, TempDirectory tempDir)
         {