Why regression testing is important before deployment

1. Why regression testing is important before deployment? As per research, the market for regression testing is expected to rise at an annual growth rate of 8% till 2027. The numbers clearly project the prominence of regression testing in the software testing and development domain. When multiple commits are frequently made by developers, the unexpected outcome in the overall functionality that has been caused by each summit is clearly identified by the regression testing method. In this article, you will get to know the strategic importance of conducting regression testing before deployment. What is regression testing? It is a testing method that verifies whether the new changes that have been introduced in the code do not alter or modify the existing functionalities of the application. It ensures that the existing functionalities are working fine, despite introducing changes in the code or when a new feature has been introduced. Unit regression testing, partial regression testing, complete regression testing etc., are some of the important types of regression testing that can be used Following are the four key factors that depict as to why regression testing is important before deployment 01 Notification mechanism is streamlined Plugin support is provided by CI/CD tools like Jenkins, so that team members are notified of unexpected failures during the regression testing. But, when there is an increase in these notifications then investigating each of them might become inefficient, which leads to a greater probability of oversight. Plugin support is provided by CI/CD tools like Jenkins, so that team members are notified of To avoid such scenarios, generating a Failure Summary Report (FSR) is considered to be a feasible option that can efficiently highlight new failures. The executive summary section can be included in FSRs along with detailed summary sections. 02 Computing resources are optimally used When a cluster of multiple hosts is used by setting up CI/CD pipelines, a minimum turnaround time is expected out of a regression run cycle with maximum throughput. To achieve this, there should be a correct distribution of regression runs across the cluster. Scheduler and Workload management tools like PBS and IBM LSF can be used for concurrently running jobs at any given point in time based on available computing resources. 03 Monitoring resources If the growing requirement of CI/CD needs to be supported, cluster resource limitations or disk space limitations need to be considered while scaling. If it is not handled properly, then it will result in loss of data, slow executions and CI/CD node crashes. When an import deliverable is being approached by a team and suppose such an incident happens then it is difficult to meet the committed release timeline. Notification mechanism and robust monitoring can be used for avoiding such scenarios. A monitoring application can also be built, through which each local disk space, network disk space and computing host can be continuously watched. A red flag is raised when the set thresholds are crossed. Notification mechanism and robust monitoring can be used for avoiding such scenarios. A 04 Maintenance and scalability When the regression job is leveled up then it becomes quite challenging to maintain it. If a single change is implemented over so many jobs, then there is an increased potential for error and can also prove to be time-consuming. To solve such a scenario, a scalable and modular approach needs to be used, while the test procedure runs scripts that are properly designed. Instead of using CI/CD for writing steps, SCM can be used to maintain test run scripts. Jenkins APIs can also be used so that jobs can be updated from the backend thus saving manual efforts. Conclusion If you are looking forward to implementing regression testing for your specific project, then do get connected with a recognized software testing services company that will provide you with in-detail testing solutions and frameworks that can justify your project specific requirements. www.TestingXperts.com To know more about our services please email us at info@testingxperts.com USA | CANADA | UK | NETHERLANDS | SOUTH AFRICA | UAE | INDIA | SINGAPORE © TestingXperts, All Rights Reserved