Lambdas, or functions as values, have worked their way into mainstream programming and transformed development for many programmers. It’s rare to see a program that doesn’t .filter a list with a predicate or .map to transform from one type to another. This same as-a-value approach can be applied to automated tests, and I have hopes it will also transform how we program.

The TestApi pattern helps decouple tests from our system and enables more stable and reusable tests. I’ve shown how I use the pattern in F#. Now here’s a similar example in C#.

I fooled myself for a moment into thinking F# has ad-hoc polymorphism. Interface inheritance in F# looks a lot like traits in rust. So, why doesn’t F# support trait-like polymorphism.

The Great Rewriting in Rust is a good overview of why Rust is a compelling and growing language. However, I have a small quibble with how it refers to F#.

Continuous Integration (CI) is a hot buzzword. I’ve had a general sense of it for a while, but Refactoring chapter two brought its place into sharp focus, mainly through Preparatory Refactoring.