Given.Common.TestStateManager.AddWhen C# (CSharp) Method

        public void AddWhen(string text, when method)
        {
            Whens.Add(method, text);
        }

 void ProcessWhen()
 {
     //execute all when items found.
     _fields.Where(fieldInfo => fieldInfo.FieldType == typeof(when))
     .Select(fieldInfo => new { Delegate = (when)fieldInfo.GetValue(_testClass), Field = fieldInfo }).ToList()
     .ForEach(x =>
     {
         x.Delegate.Invoke();
         _testStateManager.AddWhen(x.Field.Name, x.Delegate);
     });
 }