As I do most of my programming in Java, I find it compelling to export a class in a Node.js module instead of an object instance, e.g.: class Connection { constructor(db) { this.db = db; } con...

I've got a few methods that should call System.exit() on certain inputs. Unfortunately, testing these cases causes JUnit to terminate! Putting the method calls in a new Thread doesn't seem to help,...

While designing my objects I find composition to be a better choice from the perspective of testability. The reason being, I can mock parts of the composition structure if I need to, while running ...

I have been developing a command-line tool which calls System.exit() (don't want to use exceptions instead of) on certain inputs. I am familiar with Java: How to test methods that call System.exit...

Suppose I am writing an application in Redux and I am tasked to add logging using a 3rd party library. Its API is as follows: function createLogger(token) { // the logger has internal state! let...

I've developed a lot of code in Java and dabbled in Groovy and Haskell which has now led me to Scala. I feel relatively comfortable with the functional side of Scala, but I'm finding myself a bit ...

Somebody tasked with creating a "Core" set of libraries created a set of static classes providing all sorts of utilities from logging, auditing and common database access methods. I personally thi...

All, Wanted to get a few thoughts on this. Lately I am becoming more and more of a subscriber of "purist" DI/IOC principles when designing/developing. Part of this (a big part) involves making sur...

I am used to IoC/DI in web applications - mainly Ninject with MVC3. My controller is created for me, filled in with all dependencies in place, subdependencies etc. However, things are different in...

Should you design your code to make testing easier? And if so how to design c++ code so that it is easy to test. How do you apply dependency-injection in c++? Should I implement the classes usin...