The introduction of the continuous integration/continuous deployment (CI/CD) process has strengthened the software release mechanism, helping products go to market faster than ever before and allowing application development teams to deliver code changes more frequently and reliably. Regression testing ensures no new mistakes have been introduced to a software application by testing newly modified code as well as any parts of the software that could potentially be affected. The software testing market size is projected to reach $40 billion in 2020 with a 7% growth rate by 2027. Regression testing accounted for more than 8.5% of market share and is expected to rise at an annual pace of over 8% through 2027, as per reports from the Global Market Insights group.

The Importance of Regression Testing

Regression testing is a must for large-sized software development teams following an agile model. When many developers are making multiple commits frequently, regression testing is required to identify any unexpected outcome in overall functionality caused by each commit. The CI/CD setup identifies that and notifies the developers as soon as the failure occurs and makes sure the faulty commit doesn’t get shipped into the deployment.