COBOL and its rigid structures present a unique set of challenges to companies that want to leverage the advantages of contemporary programming languages with a conversion to Java. The process is fraught with challenges and risks that require meticulous planning and careful execution.
One of the most critical aspects of this conversion process is testing. Without proper testing, the conversion process can lead to serious issues such as functionality loss, performance degradation, and even system failures.
By adhering to best practices and using appropriate tools and techniques, businesses can achieve a smooth and successful transition from COBOL to Java.
This article provides a concise set of bullet points you can use to format the testing phase of your next COBOL to Java conversion project.
Context of Conversion and Associated Risks
The need to convert COBOL to Java arises due to the limitations of COBOL – it’s outdated, lacks modern features, and has a dwindling pool of skilled developers. On the other hand, Java is robust, widely used, and has a vast
community of developers.
However, the conversion process has risks. It involves translating complex business logic embedded in COBOL programs into Java, which can introduce errors or discrepancies. If these errors go undetected during the conversion process, they can lead to major issues such as incorrect data processing, application crashes, or even security vulnerabilities.
Significance of Testing in Conversion
Testing plays a pivotal role in mitigating these risks. It helps identify any errors, discrepancies, or mismatches between the existing COBOL and the new Java systems. Through rigorous testing, we can ensure that the converted application behaves as expected, maintains its functionality, and performs efficiently.
Challenges in Testing
Despite its importance, testing in COBOL to Java conversion presents several challenges:
- Complexity: Legacy COBOL applications often have complex business logic that can be difficult to replicate in Java.
- Lack of Documentation: These legacy systems may not have comprehensive documentation, making it harder to understand the system’s functionality for accurate testing.
- Data Format Differences: COBOL and Java have different data formats, which can lead to discrepancies during conversion.
Best Practices for Testing in Conversion
To address these challenges, here are some best practices for testing during COBOL to Java conversion:
- Conduct Different Types of Tests: Carry out Unit, Integration, System, and Acceptance testing to ensure all aspects of the application are tested thoroughly.
- Automate Testing: Use automated testing tools to increase efficiency and coverage.
- Parallel Testing: Run the new system alongside the old one to compare outputs and ensure they match.
Recommended Tools and Techniques
Several testing tools and techniques can aid in this process:
- JUnit: For unit testing in Java.
- Selenium: For automated UI testing.
- JMeter: For performance testing.
- SonarQube: Quality checks
- CM evolveIT: Deep static code analysis to track objects upstream and downstream of the affected program.
- Fortra Automate: Automate testing.
Benefits of Comprehensive Testing
Comprehensive testing during the conversion process offers numerous benefits:
- Reduces Production Failures: Catching bugs early in the development cycle reduces the chances of failures in production.
- Increases On-Time Delivery: Rigorous testing helps detect and fix issues early, reducing delivery delays.
- Enhances Software Quality: Testing ensures the converted application meets the desired quality standards.
Final Thoughts
Testing is a crucial component of the COBOL to Java conversion process. It mitigates risks, ensures the successful transition of applications, and maintains software quality. By adhering to best practices and using appropriate tools and techniques, businesses can achieve a smooth and successful transition from COBOL to Java.
CM First Group Can Help
Our deep experience with legacy enterprise systems puts us uniquely positioned to help reinvent your modernization efforts and set the stage for COBOL to Java conversions that can transform your organization.
Please contact us for more information or to schedule a demonstration of our CM evolveIT software and how its impact analysis capabilities can set your COBOL to Java project up for long-term success. You can also call us at 888-866-6179 or email us at info@cmfirstgroup.com.
