Must be implemented so that time-sensitive applications are not adversely affected
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Regression Testing is defined as a type of software testing to confirm that a recent program or code change has not adversely affected existing features. Regression Testing is nothing but a full or partial selection of already executed test cases that are re-executed to ensure existing functionalities work fine. Show
This testing is done to ensure that new code changes do not have side effects on the existing functionalities. It ensures that the old code still works once the latest code changes are done. Why Regression Testing?There is a need for regression testing whenever the code is changed, and you need to determine whether the modified code will affect other parts of the software application. Moreover, regression testing is needed when a new feature is added to the software application. Regression tests may also be performed when a functional or performance defect/issue is fixed. How to do Regression TestingIn order to do Regression Testing process, we need to first debug the code to identify the bugs. Once the bugs are identified, required changes are made to fix it, then the regression testing is done by selecting relevant test cases from the test suite that covers both modified and affected parts of the code. Software maintenance is an activity which includes enhancements, error corrections, optimization and deletion of existing features. These modifications may cause the system to work incorrectly. Therefore, Regression Testing becomes necessary. Regression Testing can be carried out using the following techniques: Retest AllThis is one of the methods for Regression Testing in which all the tests in the existing test bucket or suite should be re-executed. This is very expensive as it requires huge time and resources. Regression Test SelectionRegression Test Selection is a technique in which some selected test cases from test suite are executed to test whether the modified code affects the software application or not. Test cases are categorized into two parts, reusable test cases which can be used in further regression cycles and obsolete test cases which can not be used in succeeding cycles. Prioritization of Test CasesPrioritize the test cases depending on business impact, critical & frequently used functionalities. Selection of test cases based on priority will greatly reduce the regression test suite. Selecting test cases for regression testingIt was found from industry data that a good number of the defects reported by customers were due to last minute bug fixes creating side effects and hence selecting the Test Case for regression testing is an art and not that easy. Effective Regression Tests can be done by selecting the following test cases –
Regression Testing ToolsIf your software undergoes frequent changes, regression testing costs will escalate. In such cases, Manual execution of test cases increases test execution time as well as costs. Automation of regression test cases is the smart choice in such cases. The extent of automation depends on the number of test cases that remain re-usable for successive regression cycles. Following are the most important tools used for both functional and regression testing in software engineering: 1) testRigortestRigor helps you to directly express tests as executable specifications in plain English. Users of all technical abilities are able to build end-to-end tests of any complexity covering mobile, web, and API steps in one test. Test steps are expressed on the end-user level instead of relying on details of implementation like XPaths or CSS Selectors. Features:
Visit testRigor >> 2) Avo AssureAvo Assure is a technology agnostic, no-code test automation solution that helps you test end-to-end business processes with a few clicks of the buttons. This makes regression testing more straightforward and faster.  Features
Visit Avo Assure >> 3) Subject7Subject7 is a cloud-based, “true codeless” test automation solution that unifies all testing in a single platform and empowers anyone to become an automation expert. Our easy-to-use software enables fast, easy, and sophisticated authoring of regression tests without writing a line of code, and high scale execution that runs thousands of nightly tests. Features:
Visit Subject7 >> Selenium: This is an open source tool used for automating web applications. Selenium can be used for browser-based regression testing. Quick Test Professional (QTP): HP Quick Test Professional is automated software designed to automate functional and regression test cases. It uses VBScript language for automation. It is a Data-driven, Keyword based tool. Rational Functional Tester (RFT): IBM’s rational functional tester is a Java tool used to automate the test cases of software applications. This is primarily used for automating regression test cases and it also integrates with Rational Test Manager. Regression Testing and Configuration ManagementConfiguration Management during Regression Testing becomes imperative in Agile Environments where a code is being continuously modified. To ensure effective regression tests, observe the following :
Difference between Re-Testing and Regression TestingRetesting means testing the functionality or bug again to ensure the code is fixed. If it is not fixed, Defect needs to be re-opened. If fixed, Defect is closed. Regression testing means testing your software application when it undergoes a code change to ensure that the new code has not affected other parts of the software. Also, Check out the complete list of differences over here. Challenges in Regression TestingFollowing are the major testing problems for doing regression testing:
Practical Application of Regression Testing Example with a VideoClick here if the video is not accessible Conclusion
What is intrusion detection in information security?An Intrusion Detection System (IDS) is a monitoring system that detects suspicious activities and generates alerts when they are detected. Based upon these alerts, a security operations center (SOC) analyst or incident responder can investigate the issue and take the appropriate actions to remediate the threat.
Can use stream normalization techniques to reduce or eliminate many of the network security evasion capabilities that exist?Overrunning IPS sensor capabilities with too much traffic does negatively affect the performance of the network. Being inline, an IPS sensor can use stream normalization techniques to reduce or eliminate many of the network evasion capabilities that exist.
Which security control is a consequence of Nonmalicious activity generally representing an error?False positive: A situation in which normal user activity triggers an alarm or response. This is a consequence of nonmalicious activity. This represents an error and generally is caused by excessively tight proactive controls or excessively relaxed reactive controls.
How are Intrusion Prevention System IPS and Intrusion Detection System IDS components used in conjunction?An intrusion detection system (IDS) monitors traffic on your network, analyzes that traffic for signatures matching known attacks, and when something suspicious happens, you're alerted. In the meantime, the traffic keeps flowing. An intrusion prevention system (IPS) also monitors traffic.
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