Testing Requirements: We will test the application for the features or the modification disclose in the requirement document. Testing Integration: Regression Testing is the main attention of this testing activity. And we will test the entire process or other applications that receive or send data to the precious application.
After that, we will share the test results with the development team on a periodical basis. To maintain continuity, the testing team should be in touch with the development team for instant modification in crucial conditions. In mainframe testing, we have used various commands, which are very helpful while testing an application or software. A tester should have the following information on mainframe operation while performing the mainframe testing on an application:.
If we are performing the mainframe testing on the application, we might have encountered some challenges, and for those challenges, we have some specified approach, as we can see in the below table:. In the first step, we will be performed smoke testing , where we check whether the code installed is in the correct test environment. And it also makes sure that there is no critical issues with the code, which saves the effort of testers' time in testing a faulty build.
After performing the smoke testing, we will do one round of functionality or system testing to test various models' functionalities independently and concerning each other. We will perform the batch testing to authenticate the test result on the output files and data modification completed by the batch job with the testing specification. In online testing, we will test the front-end features of the mainframe applications. The application should be tested for exact entry fields such as interest on the plan, an insurance plan, etc.
The online-batch integration testing can be performed on the systems with the batch processes and online application. And here, we also tested the Integration features of the online process with the backend process.
Basically, in this testing, we validate the data flow's accuracy and the interactions between the screens and the backend system. And the batch job is used to check the data flow and communication between the online screens.
The database testing is used to test the data stored by the transactions for conformance with the system specification. And in database testing, we can also authenticate the data integrity and other database parameters for their ideal performance.
The system integration testing is used to check the systems' functionality relating to the system under test. It is executed after unit-level tests because it is important to test the interface and serval types of messages such as Job Successful, Job Failed, Database updated, etc.
And for correctness, we will test the data flow across the modules and applications. The system integration testing is performed to make sure the readiness of the build for deployment. The most important phase of any testing is regression testing. The regression testing is making sure that the batch jobs and the online screens cannot directly relate to the system under test, which are not affected by the current project release. The regression testing guarantees the modification done in a module and does not affect the parent application's and the overall function along with the integrated application.
A specific set of test cases should be accepted based on their complexity, and a Test cases repository should be created to get a successful regression testing. And the particular test should be modified whenever there is a new functionality moved into the release.
In mainframe testing, the next step is performance testing. In performance testing, we will try to find the bottlenecks in important areas such as front-end data, upgrading online databases, and project the application's scalability.
To overcome the above bugs, we should test the application appropriately with the help of the following:. The security testing includes evaluating the threats, risks, vulnerabilities and recommend remedial actions for applications and networks. In other words, we can say that security testing is performed to check how well the application is designed and developed to conflicting anti-security attacks. Security testing should be completed on the two types of security systems: Mainframe security and Network security.
The Agile methodology is used to simplifies the gradual development of application and responds to modification quickly. We have various types of mainframe automation testing tools available in the market. Some of the most commonly used mainframe automation testing tools are as follows:.
QTP tool is used to test functional regression test cases of the web-based application. It is very helpful for the new test engineer because they can understand this tool quickly. QTP is designed on the scripting language like VB script to automate the application. It is an interpreted programming language, which is established at IBM.
REXX is a high-level, structured programming language designed for reading and learning. It is used as a scripting and macro language. A testing team in co-ordination with the Project management and development team should prepare Test scenarios and test cases well in advance. System requirement document, Business requirement document, other project documents and inputs from the development team will be useful for preparing test plans.
The resources with prerequisite mainframe knowledge should be part of the team. A testing schedule should be drawn in line with the project delivery schedule and it should be realistic. Deliverables should be well defined without any ambiguity and it should be within the scope of test objectives.
Execution should be as per plan and deliverables. There should be periodical reviews with the development team to check the progress and make a course correction. Test results should be shared with the development team on a periodical basis. In case of urgent situations, the testing team can get in touch with the development team for immediate correction to maintain continuity.
The robust testing process avoids unnecessary rework, utilizes resources optimally, reduces production downtime, enhances the user experience, improves customer retention and reduces the cost of IT operation overall. Mainframe computers still play a vital role in hosting legacy ERP applications for large enterprises as well as hosting back end for Digital applications.
Mainframes are here to stay for a longer time. It is paramountly important that Application hosted in mainframe should be tested thoroughly before deployment.
This is a guide to Mainframe Testing. You can also go through our other suggested articles to learn more—. Submit Next Question. By signing up, you agree to our Terms of Use and Privacy Policy. Forgot Password? This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy.
By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to our Privacy Policy. For data setup, homegrown tools can be used as per the need. For fetching existing data, queries should be built in advance. In case of any difficulty, a request can be placed to data management team for creating or cloning required data. Job Setup.
So that the jobs are not submitted with production qualifier or path detail. Job setup tools should be used so as to overcome human errors made during setup. Ad-hoc Request. There may be situations when end to end testing needs to be supported due to a problem in upstream or downstream application issues. These requests increase the time and effort in execution cycle. Use of automation scripts, regression scripts, and skeleton scripts could help in reducing the time and effort overhead.
On-Time Releases for scope change. There may be a situation where the code impact may completely change the look and feel of the system. This may require a change to test cases, scripts, and data. Scope change management process and Impact analysis should be in place. Reason — Reading at the end of the file, file length error, attempt to write into read-only file.
Reason — PDS member does not exist, record length in the program does not match the actual record length. Error Assist — A very popular tool to get detailed information on various types of abends.
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