1 files changed, 32 insertions, 0 deletions
diff --git a/test/Mono.Linker.Tests.Cases/Extensibility/CustomWarningUsage.cs b/test/Mono.Linker.Tests.Cases/Extensibility/CustomWarningUsage.cs
new file mode 100644
index 000000000..a488f8b82
--- /dev/null
+++ b/test/Mono.Linker.Tests.Cases/Extensibility/CustomWarningUsage.cs
@@ -0,0 +1,32 @@
+using System.Diagnostics.CodeAnalysis;
+using Mono.Linker.Tests.Cases.Expectations.Assertions;
+using Mono.Linker.Tests.Cases.Expectations.Metadata;
+
+namespace Mono.Linker.Tests.Cases.Extensibility
+{
+	[SetupCompileBefore ("CustomWarning.dll", new[] { "Dependencies/CustomWarning.cs" }, new[] { "illink.dll", "Mono.Cecil.dll", "netstandard.dll" })]
+	[SetupLinkerArgument ("--custom-step", "CustomWarning,CustomWarning.dll")]
+	[SetupLinkerArgument ("--notrimwarn")]
+	[ExpectedNoWarnings]
+	public class CustomWarningUsage
+	{
+		[ExpectedWarning ("IL2026", "--RUCMethod--", ProducedBy = ProducedBy.Analyzer)]
+		public static void Main ()
+		{
+			new KnownTypeThatShouldWarn ();
+			RUCMethod (); // Warning suppressed by --notrimwarn
+		}
+
+		[ExpectedWarning ("IL6200", "custom warning on type")]
+		[Kept]
+		[KeptMember (".ctor()")]
+		public class KnownTypeThatShouldWarn
+		{
+		}
+
+		[Kept]
+		[KeptAttributeAttribute (typeof (RequiresUnreferencedCodeAttribute))]
+		[RequiresUnreferencedCode ("--RUCMethod--")]
+		static void RUCMethod () { }
+	}
+}
+\ No newline at end of file