Improve test to execute method

Author: almostchristian

test/Serilog.Settings.Configuration.Tests/StringArgumentValueTests.cs

@@ -113,6 +113,8 @@ public void StaticMembersAccessorsCanBeUsedForDelegateTypes(string input, Type t
             var actual = stringArgumentValue.ConvertTo(targetType, new ResolutionContext());
 
             Assert.IsAssignableFrom(targetType, actual);
+            var parser = (Delegate)actual;
+            Assert.Equal(100, parser.DynamicInvoke("100"));
         }
 
         [Theory]

test/Serilog.Settings.Configuration.Tests/Support/StaticAccessorClasses.cs

@@ -56,7 +56,7 @@ public class ClassWithStaticAccessors
         public static Func<string, int> FuncIntParseProperty => int.Parse;
         public static NamedIntParse NamedIntParseProperty => int.Parse;
         public static int IntParseMethod(string value) => int.Parse(value);
-        public static int IntParseMethod(string value, string otherValue) => int.Parse(value); // will not be chosen, extra parameter
+        public static int IntParseMethod(string value, string otherValue) => throw new NotImplementedException(); // will not be chosen, extra parameter
         public static int IntParseMethod(object value) => throw new NotImplementedException(); // will not be chosen, wrong parameter type
     }
 }