I’ve been trying to get a better and deeper understanding with regard to window’s boundaries and behavior when it comes to stateful stream processing in Apache Flink. This led to a detailed and example-driven quest which I’m going to...

Since 1950, in computer science and programming a general dichotomy was shaped. This dichotomy was regarding how to approach programming problems, what to sacrifice and what to favor first. One group was in favor of performance, also known as Bottom-Up...

One of the factors used by many programmers in the analysis of a program from quality, design and understandability perspective, is LOC (Lines Of Code) and sometimes that’s taken to another level - specially in the functional programming world...

Heads up: for the main point of this post, library and framework are used interchangeably even though those two are inherently different things.

In our programs we leverage many different libraries and frameworks. We use them in order to address...

We’ve been told many times in our life that each tool is useful for certain tasks and using a tool for something unrelated or even somewhat related is not a very smart decision. For instance you do NOT use a...

The original and filtered images are as followings. Also for more thorough explanation and the source code, you can check out its GitHub Repository:

This is going to be a short post on a very interesting and important programming concept that IMHO is really helpful and make a nice difference in the code! It’s about not mixing things that have different levels of abstraction...

In the past few months I’ve been doing something a little bit different from the approach that I usually take while programming/developing software. If you’ve read the GREAT book SICP, you should be familiar with the term “Wishful Thinking”!...

A lot of programmers write unit tests during the development and also a lot of programmers do Test Driven Development. One thing that we usually forget while programming is Listening to our Tests. If we listen carefully to our tests...

This is an interesting problem and here’s a solution that me and my friend came up with! You can find it in my GitHub! It was fun and kind of interesting! Check it out if you find this kind...

TL; DR Branching -> Cleaning-up commits -> Merging -> Pulling -> Pushing;

Working in a clean and neat environment is not ONLY for the production code and the tests of the software, it also can apply on different aspects of...

This is a short post for pointing out a quick and handy little thing that I found helpful in some cases while programming.

Some people are religiously against comments and they know the existence of comments in the code as...

I know it sounds a little bit strange when I say removing tests after they served you specially because we all know that one of the great benefits of having automated unit-tests is that you’ll end up with a regression...

I tweeted about this thing a couple times and now I want to elaborate a little more on it with an example! A lot of times I hear people talking about the fact that something is much easier to do...

Sometimes we think that our code is good enough and clean! It’s totally fine to continue developing instead of looking it from one step back and clean it up before we move one! After all it is called Red-Green-Refactor! It’s...

Recently one of my friends asked me to help him for refactoring and improving the design of his rails application and its unit and integration tests. It was a really great experience because working on other people’s codes always teaches...

If you’re a rails developer or had an experience of writing a rails application you know that running your tests is a really painful and long process because it loads the rails environment at first. I’m assuming you write unit-tests...

As you know one of the four rules of simple design is that the code should clearly express the intent of its author. So any attempt for making the code more communicative and expressive will pay off later. As...

[Just for the heads up, in this post when I say reversing decimal number I mean converting from 1.2 to 2.1]

Few days ago I was hanging out with my friend and his little sister, Sarah, asked me: “We can...

Few weeks earlier one of my friends told me that he wrote a project for his File Structure course and likes to write unit-tests for it and put under high test coverage then Refactor it and makes its code as...

This is just a quick thing about making unit tests (or micro tests, you can call it whatever you want the important things is the concept) more readable and less confusing. In TDD by Example Kent Beck says that...

What would you do when you have a mess and legacy code and you need to add some functionality to it?

Of course there are different options here. But the one you choose can make adding functionalities and continuing the...

This is just a short post for mentioning a quick but very important issue in unit-testing(micro-testing). Some people don’t pay enough attention to naming their unit-tests!!! Actually some people don’t pay enough attention about quality of their unit-tests(but it’s a...

Unit Tests should be more focused and specialized:

Writing unit tests is a really interesting and important craft and art which every software developer should understand and practice it very well for being more effective and successful.

In Test Driven...

This is just a quick thing about DRY.

I think every person in the software development community know what is DRY. But I’m gonna explain its essence in few sentences.

DRY stands for Don’t Repeat Yourself. Dave Thomas and Andy...

I assume that anyone who reads this post is familiar with the concept of Kata in programming. But I’ll just introduce it in few lines. Kata is kind of practicing which originally belongs to martial arts. It’s a practice that...

In the previous part we saw how we can create CppUnitLite library for using in other projects and also how we can make our projects to depend on that library and use. Now it’s time for writing a very simple...

A few days ago one of my friends told me: “do you think we can do TDD in C?” at first I thought this is kind of stupid cause TDD makes sense for Object Oriented programming and design so for...

This is the last part of Report System blog series. I’m going to talk about a testability point that happened to me when I was writing our Report System.

As you know, before we decided to write our own report...

In the previous post I told you we decided to write our own report system, so we’ll have an html page for each letter or report fixed contents and some kind of a special pattern for their interchangeable parts.

From...