January 29, 2023

Unit Testing Unit testing is a software testing technique where individual components of a software application are tested in isolation from the rest of the application. The goal of unit testing is to validate that each unit of code is working correctly and as expected. Unit tests are automated, meaning they can be run as many times as needed without manual intervention. They are also repeatable, meaning that they can be run again and again with the same results, providing a consistent level of quality control. Unit testing is a critical component of the software development process and is usually performed during the development phase. It helps identify bugs and defects early in the development process, making it easier and cheaper to fix them. Additionally, unit tests serve as a living documentation of the code and can help to catch any regressions in future development. Overall, unit testing helps ensure that the software application is functioning correctly, reduces the number of defects in the application, and provides confidence to developers and stakeholders that the application will work as expected. Unit testing with one real-life example A real-life example of unit testing would be testing the functionality of a login form in a web application. This can be done using a framework such as JUnit or TestNG. The test cases would cover the following scenarios: Once these test cases are written and executed, the results would indicate whether the login form is functioning correctly or not. If any of the test cases fail, the development team can then fix the issue and rerun the tests to ensure that the form is working as expected. This type of testing helps ensure that the individual components of the web application, in this case, the login form, are working correctly and efficiently. This helps to catch any potential problems before the application is deployed to production, resulting in a smoother user experience for the end-user.

Regression Testing Regression testing is the process of testing a software application after it has been modified or updated to ensure that the changes made do not negatively impact the functionality of the software. This type of testing is used to verify that any new changes or updates to the software do not introduce new bugs or cause existing features to malfunction. Regression testing is typically conducted on a regular basis, such as after each release or update, to ensure that the software remains stable and reliable. The goal of regression testing is to identify and fix any issues before they become major problems for users. What means by retesting? Retesting is the process of testing a software application again after it has been modified or updated. This type of testing is typically conducted after a bug or defect has been identified and fixed, in order to verify that the fix has resolved the issue and that the software is functioning correctly. Retesting is important because it helps to ensure that any bugs or defects that are identified are fully resolved and that the software is stable and reliable. Retesting can also be done after a software update or release to ensure that the new changes have not introduced any new issues or broken existing functionality. What is difference between retesting and regression testing? The main difference between retesting and regression testing is their focus and objectives. Retesting is focused on testing specific areas of the software that have been modified or updated after a bug or defect was identified and fixed, to ensure that the fix has resolved the issue and that the software is functioning correctly. Regression testing, on the other hand, is focused on testing the entire software application after it has been modified or updated to ensure that the changes made do not negatively impact the functionality of the software. This type of testing is used to verify that any new changes or updates to the software do not introduce new bugs or cause existing features to malfunction. In summary, retesting is focused on testing specific areas of the software to ensure that a fix has resolved an issue, while regression testing is focused on testing the entire software application to ensure that changes have not negatively impacted the functionality. Software Testing Jobs

What is mean by manual testing Manual testing is a process in which software is tested manually by a human tester, rather than using automated tools or scripts. There are several types of manual testing, including: Functional testing: This type of testing verifies that the software functions as intended and meets the requirements specified by the client or end-user. Non-functional testing: This type of testing evaluates the software’s performance, security, usability, and other non-functional aspects. Unit testing: This type of testing focuses on individual units or components of the software, such as functions or methods, to ensure they are working correctly. more.. Integration testing: This type of testing verifies that different components of the software work together as expected. System testing: This type of testing evaluates the software as a whole and verifies that it meets the requirements of the end-user or client. Acceptance testing: This type of testing is the final phase of testing and is performed by the end-user or client to determine whether the software meets their expectations and can be accepted for use. Exploratory testing: This type of testing is performed by a tester to explore the system and find defects, without following a specific test plan or script. Regression testing: This type of testing is done to ensure that changes made to the software have not introduced new bugs or broken existing functionality. What are the advantages of manual testing? Manual testing has several advantages, including: Flexibility: Manual testing allows for more flexibility and creativity in testing, as testers can devise their own test cases and test scenarios. Human intuition: Manual testing allows for the use of human intuition and experience, which can be valuable in finding defects that automated testing may miss. Real-world scenario testing: Manual testing allows for testing in real-world scenarios, which can be difficult to replicate with automated testing. Better detection of usability issues: Manual testing allows for the detection of usability issues, such as user-interface design defects, that may not be identified through automated testing. Cost-effective: In some cases, manual testing can be more cost-effective than automated testing, especially for small projects or projects with a short development cycle. Better understanding of the system: Manual testing helps testers to better understand the system, which can be useful for identifying defects and for providing feedback to developers. Better support for exploratory testing: Manual testing allows for more flexibility in exploring the system and finding defects, which can be useful in identifying defects that may not have been found through other types of testing. What are the different types of testing? There are several types of manual testing, including: Functional testing: This type of testing verifies that the software functions as intended and meets the requirements specified by the client or end-user. Non-functional testing: This type of testing evaluates the software’s performance, security, usability, and other non-functional aspects. Unit testing: This type of testing focuses on individual units or components of the software, such as functions or methods, to ensure they are working correctly. Integration testing: This type of testing verifies that different components of the software work together as expected. System testing: This type of testing evaluates the software as a whole and verifies that it meets the requirements of the end-user or client. Acceptance testing: This type of testing is the final phase of testing and is performed by the end-user or client to determine whether the software meets their expectations and can be accepted for use. Exploratory testing: This type of testing is performed by a tester to explore the system and find defects, without following a specific test plan or script. Regression testing: This type of testing is done to ensure that changes made to the software have not introduced new bugs or broken existing functionality. User Acceptance Testing (UAT): This type of testing is done by the end-users of the system to confirm the system meets their requirements and is ready for production. Compatibility testing: This type of testing is done to confirm the software is compatible with different environments such as different OS, browsers, devices, and hardware. Security testing: This type of testing is done to check the security of the software and ensure that it is protected against unauthorized access, hacking, and data breaches. Localization testing: This type of testing is done to ensure that the software is properly translated and works correctly in different languages and locales. Software Testing Jobs Testing Material