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The tests may vary from being functional to non-functional, subject to test requirements. In a tech-advanced world where automation tools and frameworks are making life easier for test engineers, it would be normal to assume that manual testing is obsolete. This is, however, completely untrue. This article will explain everything one should know about manual testing.
Manual testing, as the term suggests, refers to a test process in which a QA manually tests the software application in order to identify bugs. To do so, QAs follow a written test plan that describes a set of unique test scenarios. QAs verify the actual behavior of software against expected behavior, and any difference is reported as a bug. A developer has created a website and wants to test it for functionality. In this case, the expected behavior is that the user must be able to enter the username and password and submit the credentials by clicking the Login button.
In such a case, the QA will report a bug to the developer. Since manual testing is carried out by a human without the intervention of test automation frameworks, it judges software from the most important metric: User Experience. Manual testing plays a vital role in exploratory testing or in test cases that are executed once or twice.
This helps QAs to discover bugs in the early stages of the development cycle. Unit Testing involves verification of individual components or units of source code. A unit can be referred to as the smallest testable part of any software. It focuses on testing the functionality of individual components within the application. It is often used by developers to discover bugs in the early stages of the development cycle. A unit test case would be as fundamental as clicking a button on a web page and verifying whether it performs the desired operation.
For example, ensuring that a share button on a webpage lets you share the correct page link. Integration testing is the next step after unit testing. Multiple units are integrated to be tested as a whole.
For example, testing a series of webpages in a particular order to verify interoperability. This approach helps QAs evaluate how several components of the application work together to provide the desired result. Performing integration testing in parallel with development allows developers to detect and locate bugs faster.
As the name suggests, system testing involves testing all the integrated modules of the software as a whole.
It helps QAs verify whether the system meets the desired requirements. It includes multiple tests like validating output based on specific input, testing user experience and more. Teams perform several types of system testing like regression testing, stress testing, functional testing and more, depending on their access to time and resources.
The main goal of acceptance testing is to verify whether the system as a whole is fit for use in the real world. Acceptance testing is performed both internally and externally.
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