Unit testing is essential for increasing the speed and quality of software development while reducing risk and costs. When it comes to safety critical systems, unit testing is required to qualify software for its intended use.
Unit testing is critical for:
Unfortunately, unit testing demands considerable time and resources. Most of the time, a programming expert has to design, develop and maintain unit tests. In addition, unit tests are fragile to changes in software and their maintenance can burden projects.
On the plus side, there is a way to successfully execute unit testing scalably across your project, allowing more of the software team to contribute rather than engineers exclusively.