add a test so we don't regress

Author: baronfel

test/Microsoft.NET.Publish.Tests/GivenThatWeWantToPublishAToolProject.cs

@@ -0,0 +1,41 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+#nullable disable
+
+using System.Runtime.CompilerServices;
+using Microsoft.DotNet.Cli.Utils;
+
+namespace Microsoft.NET.Publish.Tests
+{
+    public class GivenThatWeWantToPublishAToolProject : SdkTest
+    {
+        public GivenThatWeWantToPublishAToolProject(ITestOutputHelper log) : base(log)
+        {
+        }
+
+        private TestAsset SetupTestAsset([CallerMemberName] string callingMethod = "")
+        {
+            TestAsset helloWorldAsset = _testAssetsManager
+                .CopyTestAsset("PortableTool", callingMethod)
+                .WithSource();
+
+
+            return helloWorldAsset;
+        }
+
+        [Fact]
+        // this test verifies that we don't regress the 'normal' publish experience accidentally in the
+        // PackTool.targets
+        public void It_can_publish_and_has_apphost()
+        {
+            var testAsset = SetupTestAsset();
+            var publishCommand = new PublishCommand(testAsset);
+
+            publishCommand.Execute();
+
+            publishCommand.GetOutputDirectory(targetFramework: ToolsetInfo.CurrentTargetFramework)
+                .EnumerateFiles().Should().Contain(f => f.Name == "consoledemo" + Constants.ExeSuffix);
+        }
+    }
+}