Nerf questions

• FluentValidation and collection of object its property should be unique
• Explicit and implicit cast with generic type
• Enum extension method to get all values
• xUnit theory guids as parametr
• NSubstitute - Please use specifications for all arguments of the same type. Issue on TeamCity
• Notification system/service in C# with ASP.NET MVC
• Unable to call public instance method AddOrUpdate, mocking
• Four nullable boolean multiple choice checkboxs.
• CSC version at computer

Nerf answers