✅ ensure that the log4net assembly is always signed

src/log4net.Tests/Signing.cs

@@ -0,0 +1,23 @@
+using log4net.Repository;
+using NUnit.Framework;
+using NExpect;
+using static NExpect.Expectations;
+
+namespace log4net.Tests
+{
+    [TestFixture]
+    public class Signing
+    {
+        [Test]
+        public void AssemblyShouldBeSigned()
+        {
+            // Arrange
+            var asm = typeof(LoggerRepositorySkeleton).Assembly;
+            // Act
+            var result = asm.GetName().GetPublicKey();
+            // Assert
+            Expect(result)
+                .Not.To.Be.Empty();
+        }       
+    }
+}

src/log4net/AssemblyInfo.cs

@@ -20,6 +20,8 @@
 using System.Reflection;
 using System.Runtime.CompilerServices;
 
+// [assembly:AssemblyKeyFile("log4net.snk")]
+
 #if (!SSCLI)
 //
 // log4net makes use of static methods which cannot be made com visible