Is there any framework for .NET to populate test data?

I am use c# and for unit testing and integration testing usually I need to populate fields automatically based on attributes.

Lets say we will test if we can write and get back user data to database.

• I create a user object populate fields write user to database
• Read user object from database
• Check fields if what I write is same as what I read

Is there any framework to populate user with test data automatically and check if two object are have the same values?

Sample code may like this

User user = new User();
AutoPopulator.Populate(user);
user.Save();