This practice is as tedious and extensive as it is important. Unit tests are designed to validate that individual pieces of software code work as expected.
But running them takes a lot of time and effort. That’s why code wizards powered by generative AI are key allies. They make it possible to speed up the task, help developers and, as a result, improve software quality.

An introduction: What are unit tests
Unit tests validate what is expected to happen with the code. That is, if the desired result is obtained from a given input.
They are fundamental tests for detecting errors early on. This prevents them from appearing in later stages of development, which is more expensive to correct and leaves the user company exposed to greater risks. They also generally improve code quality and simplify code management.
Despite their many benefits, unit tests also present some challenges, especially when it comes to complex projects or when tight deadlines must be met.
For example, it is not always easy to cover all the scenarios to be tested. An exhaustive test could take a long time and demand a great deal of effort. Another aspect to consider is the maintenance of unit tests. If the code evolves, they may become outdated.
Code wizards and unit tests
Efficiency is a must for today’s development teams. Code wizards such as GitHub Copilot are a great help in generating unit tests, as they allow you to create them automatically.
They are also capable of suggesting test cases based on the code being developed, contemplating different scenarios. Among them, valid inputs, invalid inputs and extreme cases.
This significantly reduces the time required for developers to write these tests. This allows them to focus on creating a better digital product to support the business.
It is very important to understand that, although it has shown high levels of assertiveness, it is not a foolproof tool. The eye of the developer, validating that the tests are correct, free of errors and meet the requirements, is fundamental.
Benefits of using code wizards in unit tests
Increased test coverage
Code wizards are capable of suggesting a huge number of use cases. Therefore, it accelerates the ability to detect those cases and even contemplates options that the developer might have “missed”. The more scenarios that are validated, the more robust the software is and the fewer bugs it has. An internal Nubiral analysis determined that 90% coverage can be achieved in a very short time.
Increased productivity
By automating the creation of tests for common or repetitive cases, developers can spend more time solving complex problems or resolving business issues.
Simplified maintenance
Test maintenance is simplified because wizards suggest updates when code changes are made. This ensures that tests are always in sync with the latest version of the software.
Higher software quality
The number of bugs is minimized to the point that the bug becomes an anomaly, an oddity.
Benefits for your business
At Nubiral we incorporate the use of code wizards for unit tests in our CoE (development center of excellence). There, we bring our knowledge and experience to get the most out of those tools.
Thanks to that, we guarantee higher quality software created in a shorter amount of time and, thanks to the optimization of resources during the development stage, with costs under control.
Conclusions
Code wizards represent the opportunity to take unit tests to a new level. They help developers to improve software testing coverage, increase productivity and upgrade the product delivery.
As always with new technologies, it is important to use it responsibly and under the supervision of experienced developers to get the most out of its benefits.
In conclusion, we have in the code wizards for unit test development a clear example of how innovation generates benefits for all parties. Developers win, your company wins and all users of your software win.
Do you want your digital products to be as bug-free and high-quality as possible? Our experts are waiting for your call. Schedule a meeting!