Hello everyone,

This week’s blog topic would be about Test-Driven Development (TTD) as this is something we recently talked about in class and it didn’t take long for me to understand the importance of it. So Test-Driven Development (TTD) is a software development process that involves writing tests for your code before you write the code. At first this was very confusing but after trying and actually working on it, I actually saw its purpose.  This approach has transformed the development of coding projects and has revolved around testing. While the more traditional way is concentrated around the waterfall model, which is a more linear approach where testing occurs near the end of a one long timeline. TDD makes testing an ongoing process, a reiterative process. It follows simple steps which cycle through the process. You first write the desired test for the desired feature, ensuring the test fails because the feature has not been written first and then you write enough code where it passes the test. This cycle repeats with further improvements and new features until the project is complete. Its core principle is rooted in Agile development, where it emphasizes iterative development with collaborative efforts based on customer feedback and the ability to change. The benefits of TTD is that it enhances collaboration through shared understanding of requirements, it is one of the best ways to detect bugs early on the development cycle of the project and it improves code design immensely. Because it is driven from testing it allows the code to evolve organically, it creates a program having the same format of coding throughout it without even trying too much. Due to its core principles, it also lowers the long term maintenance costs and this can be hugely beneficial for big projects that have a long lifespan. Not only does this blog explain what TTD is, the author also shares its best advice and practices for the developers who are trying to implement it in their work. You first start simple by writing a focused test on the fundamentals features of the project. Then you create more complex tests for specific situations. What I liked about this post and the reason why I chose it was that it has a good balance of theoretical concepts and also actual practical use. I appreciated how the author walked us over through the concepts and then immediately followed up with simple examples. This reinforces what you are trying to learn and through practice you test the concepts that you just learnt.

In conclusion, Test-Driven Development represents a new way in software development, where it highlights and prioritizes the importance of testing and the quality that it brings and you revolve it around it. By integrating testing into every step of development, TTD creates a strong and maintainable software program while supporting modern development practices. The development may be slow at first, but the long term benefits and the high quality in code make up for it.

Source: https://circleci.com/blog/test-driven-development-tdd/

From the blog Elio's Blog by Elio Ngjelo and used with permission of the author. All other rights reserved by the author.

I recently came across the article “Best Practices for Software Quality Assurance Testing” by KMS Technology. As a computer science student eager to understand the practical aspects of software development, this piece offered a clear roadmap of the QA process, breaking it down into four main stages: planning, test design, execution, and reporting.

1. Planning: The article emphasizes the importance of early-stage planning, including resource allocation, timeline estimation, and tool selection. This stage sets the foundation for the entire QA process.​

2. Test Design: Here, the focus is on defining both functional and non-functional requirements. The article suggests determining which tests can be automated and which require manual intervention, ensuring comprehensive coverage of user scenarios.​KMS Technology

3. Test Execution: This phase involves running the designed tests and evaluating any defects or issues that arise. It’s a repetitive process, ensuring that each identified problem is addressed and retested.​

4. Reporting and Maintenance: The final stage is about documenting findings, analyzing results, and ensuring that the software is ready for release. Continuous feedback loops between testers and developers are crucial here.​

Reflecting on these stages, I realize how often, in academic projects, we might overlook structured testing due to time constraints or lack of emphasis. However, this article highlights that integrating testing throughout the development cycle, rather than treating it as a final step, leads to more reliable and efficient software.

One key takeaway for me is the significance of clear communication and documentation. In group projects, miscommunication can lead to redundant work or overlooked bugs. By adopting a structured QA approach, we can mitigate these issues.

In conclusion, this article has provided me with a practical framework for approaching software testing. As I continue my studies and work on more complex projects, I plan to implement these best practices to enhance the quality and reliability of my work.

For those interested in a deeper dive, here’s the full article: Best Practices for Software Quality Assurance Testing.

From the blog Zacharys Computer Science Blog by Zachary Kimball and used with permission of the author. All other rights reserved by the author.

Recently, I have been learning a lot about testing code, specifically methods such as static and dynamic testing of code. For this blog post, I wanted to research deeper into static and dynamic testing methods, as well as their applications, especially given my limited experience with using them up until now. As for researching this topic, I came across a well made podcast titled, “Static Testing vs Dynamic Testing: What is the Difference?” by CTSS Academy on spotify. I found this podcast to be a perfect choice to aid in my research for the software quality assurance and testing course I am taking this semester, especially because of the speakers prior experience in a very relevant workplace that focused on software testing, and the manner in which they address their video to an intended audience of prospect software testers. 

STATIC TESTING: 

This involves looking at software without ever running it in the first place, much like looking at a blueprint. Static testing has a heavy emphasis on preventing bugs from existing in the first place, much like proofreading instructions that you have been given before investing time and resources into the task that would be unrecoverable. Initial requirement documents are involved here, as well as all other outlines for how the project will go about being constructed in the first place. Source code can also be included here, as well as test cases and scripts needed to run when testing the software, really anything generated when developing the software, except running the code itself. The most basic form of static review could be considered “informal review” or something as simple as a coworker looking over another co-worker’s code and giving feedback. Technical review is more formal and is essentially a peer-review of the technical procedures or specifications taken. Static testing also includes “walkthroughs” or presentations of a project to peers, including step-by-step processes taken when creating the project. Static code review or white-box testing itself could include specifically looking at the code written and making sure that it follows the proper syntax of whatever language it is written in, as well as looking for any obvious security flaws.

DYNAMIC TESTING:

This involves executing a software or code and understanding how it processes information and behaves. Dynamic testing is all about executing code and tracking how it behaves and responds to certain situations, more specifically whether it is performing efficiently as it should, while also using the proper amount of data it should be. If static testing refers to whether or not we are building something the right way, dynamic testing refers to whether or not we are building the right thing. Unit testing is a basic place to start with dynamic testing, as it encompasses individual units of code apart from one another, using unit tests to make sure that one job of that part of the code is functioning properly. Integration testing is one step more complex than unit testing, involving multiple unit tests and the manners in which they interact with each other. System testing refers to testing the entire system of code and how it functions as a single machine, assessing whether it meets all criteria established. Security testing, performance testing, or any other form of testing that would require running the software to figure out are all considered to be dynamic testing as well.

From the blog CS Blogs with Aidan by anoone234 and used with permission of the author. All other rights reserved by the author.

During week 12, we learned about test driven development. Test driven development is a testing method that outlines what functions need to be tested, writes the tests, then writes the code. It is an iterative process that goes through each test one at a time, building on what is already written. 

In class, we practiced the method by building a Mars Rover. We read what the rover should do and made a list of what we needed to test and build. We started with the easiest thing on the list and wrote a test for it. Then, we wrote the minimum amount of code to make the test run. We tweaked the test block, if it needed to be, and then ran the single test. Next, we repeated the process for the next easiest thing on the list. We will repeat the process until all of the tests are written. 

Test driven development focuses on just the tests before the actual code is written. It was a little confusing at first to think about how to write a test before the code, but once it clicked, it was easy. 

I found a website on test driven development and it described the process in a slightly different way. BrowserStack explains test driven development as a “red-green-refactor” cycle. The red phase is when just the test is written and it doesn’t pass because there’s no code. The green phase is when the bare minimum code is written for the test to run and it passes. The refactor phase is tweaking the tests and code so everything runs and passes. The cycle is run through every time a new test is written and repeats until all of the tests are written and pass. 

Test driven development is a very useful method for debugging. Since the tests are being run at every new addition, bugs are found as they appear and do not slip into the cracks as easily. The method also is very efficient and allows the programmer to easily add new functions later on in development. The iterative process is easy to maintain for the programmer, and provides a much larger testing scope than other methods. 

I liked working with test driven development. I think the process is very organized and straightforward. I would definitely use this in the future for projects that require thorough tests and with functions that build on each other. 

Source referenced: https://www.browserstack.com/guide/what-is-test-driven-development

From the blog ALIDA NORDQUIST by alidanordquist and used with permission of the author. All other rights reserved by the author.