When we talked about understanding what we’re actually testing in error handling, we talked about the ability to understand the behavior of our code-under-test . Just to recall, here are the three types of error implementation, and what we can Read more…
One of the things that unit tests are best for is checking error conditions. While we want wider coverage of full happy flows, error conditions are sometimes hard to simulate in a big system, and unit tests excel at minimal setup to Read more…
Other awesome posts in the series: So we talked about static constructors and how to go around them. How about instance constructors? Are they innocent or guilty of the same crimes as their static brothers? I think Java got the Read more…
The other posts in the series: Where we last left off, we discussed how to dismantle the static constructor (or initializer) booby traps. And I promised you an example. I’ll do that in C#, but the operations apply to any Read more…
Here is the rest of the gang: This time we’re going to tackle the most problematic issue in testing object-oriented languages. Obviously because constructors only exist in those, but also, because even power tools have problems handling them. But we’ll start Read more…
Each stage of implementation is hard in its own way. When we start out with a new effort or process, we think of it as: Sure, it will be hard in the beginning, but it’s going to become easier as Read more…
Kevlin Henney asked once: Why do cars have brakes? Imagine if cars didn’t have brakes, how fast would you go? You’ll be driving really slow to not hit anything. But by giving the capability to slow down, brakes actually give Read more…
TDD is pretty simple right? Obey the red-green-refactor step-by-step and you’re on your way to glorious, non-legacy code. It’s really easy to explain. The rules are easy to follow. Why then so few people actually do it, and when they Read more…
Introducing TDD is a lot more psychological than you think. When we start introducing TDD we need to think about how people new will react. For example, the first question that people ask is: How am I going to write Read more…
