In my Clean Code class, I go through this example about the Liskov Substitution Principle (LSP), part of the SOLID material. This example, the rectangle and the square, never fails to stump people, both experienced and less so. It starts out Read more…
After we understand how to use mocks in Spring in integration tests, let’s take a look at a setup for testing a REST service that uses a dependency we want to mock. API testing is a usual integration test scenario, Read more…
Let’s continue where we’ve left off – multiple configurations for integration tests. We use different configurations when we need to inject two different sets of objects. For example a real one and mocked one of the same type for different Read more…
First, a couple of words about Spring in general as a dependency injection framework. One of the best things in Spring is its simplicity of injection. Regardless of where you are, you pop an @Autowired annotation on a class variable (which Read more…
He said: “I asked all my friends, and none of them likes TDD”. This one I haven’t heard before, although I suspect I should have at some point. Like any practice, TDD has a social side. I told him to Read more…
So far, we’ve talked about the process itself, our goals and expectations, what to look for while we’re moving forward, and now it’s time we get to the good stuff. How does an implementation plan actually look like? A good plan Read more…
We talked about management attention and support, and there’s more leaders can do, in order to help us make the process work. Remember those leading indicators? They don’t collect themselves. If we think about those indicators as a feature, there Read more…
Any process we start to roll out, requires management support. If we want it to succeed, anyway. Inside teams, if the team leader opposes the new process, she will either actively, or secretly, work against it. If she’s for it, Read more…
One of the exercises I love to do in my TDD classes is to build a lightsaber in TDD. (Yes, of course that’s how they’re made). In the exercise, I go through listing all kinds of features and use cases, Read more…
