Add tests for analyzer null references in byte array COM interop (#2688)

2 files changed, 45 insertions, 0 deletions

diff --git a/test/ILLink.RoslynAnalyzer.Tests/generated/ILLink.RoslynAnalyzer.Tests.Generator/ILLink.RoslynAnalyzer.Tests.TestCaseGenerator/InteropTests.g.cs b/test/ILLink.RoslynAnalyzer.Tests/generated/ILLink.RoslynAnalyzer.Tests.Generator/ILLink.RoslynAnalyzer.Tests.TestCaseGenerator/InteropTests.g.cs
new file mode 100644
index 000000000..5f49e5e14
--- /dev/null
+++ b/test/ILLink.RoslynAnalyzer.Tests/generated/ILLink.RoslynAnalyzer.Tests.Generator/ILLink.RoslynAnalyzer.Tests.TestCaseGenerator/InteropTests.g.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Threading.Tasks;
+using Xunit;
+
+namespace ILLink.RoslynAnalyzer.Tests
+{
+	public sealed partial class InteropTests : LinkerTestBase
+	{
+
+		protected override string TestSuiteName => "Interop";
+
+		[Fact]
+		public Task ByteArrayCom ()
+		{
+			return RunTest (allowMissingWarnings: true);
+		}
+
+	}
+}
\ No newline at end of file
diff --git a/test/Mono.Linker.Tests.Cases/Interop/ByteArrayCom.cs b/test/Mono.Linker.Tests.Cases/Interop/ByteArrayCom.cs
new file mode 100644
index 000000000..af09925b4
--- /dev/null
+++ b/test/Mono.Linker.Tests.Cases/Interop/ByteArrayCom.cs
@@ -0,0 +1,26 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+using Mono.Linker.Tests.Cases.Expectations.Assertions;
+
+namespace Mono.Linker.Tests.Cases.Interop
+{
+	[ExpectedNoWarnings]
+	[SkipKeptItemsValidation]
+	class ByteArrayCom
+	{
+		public static void Main ()
+		{
+			TakesByteArray (new byte[] { });
+		}
+
+		[DllImport ("SampleText.dll")]
+		static extern void TakesByteArray (byte[] x);
+	}
+}