Breaking encapsulation with collections
Encapsulation is one of the most important features of object orientation, but often easy to break in practice. One common mistake to make in this respect happens when creating a class that holds some...
View ArticlePure functions and testability
When trying to introduce unit tests into an existing project, code dependencies is often a problem. During a teeth-grinding session grappling with this problem I came to think about pure functions....
View ArticleASP.NET 3.5: improving testability with System.Web.Abstractions
The testability of ASP.NET code has long been a challenge; creating unit tests for your ASP.NET code has been difficult. One of the main points of the new ASP.NET MVC framework has been to make code...
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Handling null checks efficiently
At the QCon Conference in London in 2009, Sir C.A.R. Hoare apologized for inventing the null reference back in 1965 for the Algol W programming language. He called it his billion-dollar mistake....
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Handling nullables efficiently
I earlier wrote about Handling null checks efficiently by using extension methods to make our code more terse, not cluttered by null check blocks. When we use nullables (Nullable<T>), we come...
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