1 files changed, 63 insertions, 0 deletions
diff --git a/test/ILLink.Tasks.Tests/HelloWorldTest.cs b/test/ILLink.Tasks.Tests/HelloWorldTest.cs
new file mode 100644
index 000000000..23e4662c2
--- /dev/null
+++ b/test/ILLink.Tasks.Tests/HelloWorldTest.cs
@@ -0,0 +1,63 @@
+using System;
+using System.IO;
+using Xunit;
+using Xunit.Abstractions;
+
+namespace ILLink.Tests
+{
+	public class HelloWorldTest : IntegrationTestBase
+	{
+		private string csproj;
+
+		public HelloWorldTest(ITestOutputHelper output) : base(output) {
+			csproj = SetupProject();
+		}
+
+		public string SetupProject()
+		{
+			string projectRoot = "helloworld";
+			string csproj = Path.Combine(projectRoot, $"{projectRoot}.csproj");
+
+			if (File.Exists(csproj)) {
+				output.WriteLine($"using existing project {csproj}");
+				return csproj;
+			}
+
+			if (Directory.Exists(projectRoot)) {
+				Directory.Delete(projectRoot, true);
+			}
+
+			Directory.CreateDirectory(projectRoot);
+			int ret = Dotnet("new console", projectRoot);
+			if (ret != 0) {
+				output.WriteLine("dotnet new failed");
+				Assert.True(false);
+			}
+
+			AddLinkerReference(csproj);
+
+			return csproj;
+		}
+
+		[Fact]
+		public void RunHelloWorldStandalone()
+		{
+			string executablePath = BuildAndLink(csproj, selfContained: true);
+			CheckOutput(executablePath, selfContained: true);
+		}
+
+		[Fact]
+		public void RunHelloWorldPortable()
+		{
+			string target = BuildAndLink(csproj, selfContained: false);
+			CheckOutput(target, selfContained: false);
+		}
+
+		void CheckOutput(string target, bool selfContained = false)
+		{
+			int ret = RunApp(target, out string commandOutput, selfContained: selfContained);
+			Assert.True(ret == 0);
+			Assert.True(commandOutput.Contains("Hello World!"));
+		}
+	}
+}