Testing in Try/Catch Blocks

For today’s blog post, I wanted to cover a specific topic that I don’t particularly enjoy. While that may sound counterintuitive, I feel that it is important to repeatedly work on skills, even if they aren’t your favorite to practice. So for today’s post, I found an article on imalittletester.com about using try/catch blocks in testing. I don’t particularly enjoy try/catch blocks even though they are incredibly useful and necessary. The author explains multiple scenarios that may occur with try/catch blocks, ensuring that false positives are avoided. She dives into the scenarios, using pseudocode to illustrate what a method may look like for each scenario, and examines how tests must be constructed for each scenario to test the proper criteria.

One of her examples, the scenario where a test should only pass if an exception is not thrown is probably my favorite. She explains that the try/catch block isn’t really needed in this scenario because if we are testing that an exception is not thrown, code without a try/catch block would fail just the same as the try/catch block. This is one less scenario that I’ll have to use the dreaded try/catch blocks.

In my opinion, the most confusing of the four scenarios is how to write a try/catch block where a test should only pass if the exception is thrown. The author explains that what must be done to ensure your test works properly is to have a marker in the try block that will execute if and only if the code that is supposed to throw the exception, doesn’t throw the exception. When executing this try/catch block, the only time that this marker will execute, is when your test is failing. The author explains this in a way that is clear, and easy to follow even for those of us who have such a dislike for try/catch blocks.

In all honesty, I’m glad that I chose this article. I try (no pun intended) to avoid using try/catch blocks as much as a I can, as they can be confusing to me at times. But like I said in the beginning of this post, it is extremely important to practice skills and possibly even more important to practice skills that you don’t particularly like. I will definitely consider this article the next time I’m forced to incorporate try/catch blocks in a program I am writing.

Link to the original article: https://imalittletester.com/2017/04/24/better-test-code-principles-5-mind-your-trycatches/

What makes frameworks so cool?

This week, I decided to tackle the idea of frameworks. I personally have messed with Bootstrap, Spring, and Node/Express. Even with some experience tinkering around in these frameworks, I still did not quite comprehend why they are such a required skill to develop in their respective languages.  I chose this article because everywhere you look in the software development world, everything is about the latest framework. This can be from blog posts, tech articles, and most importantly, job postings. Everyone is expected to know a major framework for the language that is listed as a required skill. This article I found on InfoWorld, tackles what makes frameworks so powerful and why they are the foundation of the future of software development.

Probably the biggest point that this article is trying to make is that syntax does not really matter anymore. One of the secondary points to back this is up is the idea that architecture should be the focus instead of the minute details of the syntax of a language. The focus should be on how to utilize existing libraries/frameworks by reading the documentation and figuring out the little details as you go. Personally, when I first started writing code, I focused excessively on the syntax of Java instead of understanding data structures themselves. This is a good example because most of the data structures we use in practice are part of the Collections framework within Java. A strong understanding of this framework has helped me write better code more efficiently.

Another secondary point that the article makes to back up the idea that syntax is dying is the growing area of visual languages. This was completely new to me, as I would not really consider visual languages to be part of the software development process. It is hard to ignore the growth in products like SquareSpace, Wix, and tools like AndroidBuilder. While Wix and SquareSpace are not exactly what the article is referring to, I feel that it is important to consider these tools regarding visual languages. These tools alleviate the need for developers for small business owners who only need simple websites/web applications. I’m not too familiar with AndroidBuilder, but from the article, I can gather that this is more of a tool for a developer to manipulate. I do agree with the article that while visual languages will continue to grow, they will never replace the traditional means of creating applications. This does however, mean that they diminish some of the need for learning nitty-gritty syntax.

These are just a couple of the seven reasons that the author feels that frameworks are becoming the new programming languages. I hope to use the core ideas of this article when tackling frameworks, including Angular.js which we will be working with shortly. Considering my minimal experience writing Javascript applications, this will be necessary if I want to be successful for my final project. Hopefully I can translate my new knowledge into productivity.

 

Here is the original article: https://www.infoworld.com/article/2902242/application-development/7-reasons-why-frameworks-are-the-new-programming-languages.html