What exactly is refactoring? Is it just changing code? What does “not changing functionality” really means? Well, you’ve come to the right place. I’ve got just the webinar for you. And not only that, I’m going to show you how to refactor, even when you don’t have tests. If you Read more…
One of my favorite podcast (about management of all things), is Manager Tools. Feedback is one of MT’s core practices, as you would assume, and feedback according to MT is always about the future. Think about it – You want to give someone feedback over the awful, or awesome thing Read more…
Black box, white box. Does our choice of perspective matter? We’ve landed this function declaration: public int add(int a, int b); We’re told that it adds two integer numbers. How should we test it? Let’s see, we can check that sending 2 and 3 returns 5. We can also send Read more…
I know, I know, you probably thought it couldn’t be done in Python. Wrong!! In this session, presented at Python Web Conference 2022, I present the TDD a REST API session, in Python, using Flask as a web container. So no more excuses. Pythonistas! Go TDD your services. Just after Read more…
A lot of people use the term “Edge Case”. I find it offensive. Ok, not really, but there’s a misuse of the term. While we’re at it, let’s throw in negative cases, happy and unhappy paths, etc. We tie in “cases”, which are behaviors, together with code paths. It’s a Read more…
Bugs. Unless you’re a bunny, you’re not invited. But if those bugs still show up, hit’em hard. In this webinar, I take a look at where bugs come from and how to counter-strike them. From how to make sure they don’t return, to how to not break working features as Read more…
People ask me: Are we ever going to get rid of bugs? And I tell people: No. And then they pull out their machine guns and things get messy. But why is that? Are we really doomed for fighting bugs for the rest of our lives? Or theirs? Are we Read more…
The older I get, the more metaphors I use stop working over the crowd. Until the recent launch of the new Star Wars series, I lost them at lightsaber. This “walking skeleton” metaphor, which Alistair Cockburn presented a while back, is based on the old 1920s animated movies. That goes Read more…
I do a lot of clean code workshops these days; it seems that, finally, clean code gets the respect it deserves. Clean tests too. There’s one point I make (a few times even) during the workshop: While I give a lot of examples of what people think makes clean code, Read more…
Fragile tests. Even the mere thought of them, makes our stomach turn. And for good reason too. We can’t trust them. And they cost us money. First – the trust thing. We have tests that check the same code, pass most of the time, but then one build in a Read more…