What is Positive and Negative Testing?
In the realm of Functional Testing, which falls under Software Testing, positive and negative testing are essential methodologies used to ensure software behaves as expected.
Positive Testing
Positive testing, also known as "happy path testing," involves verifying that the software functions correctly when provided with valid input or conditions. The main goal is to check that the application meets the specified requirements and delivers the expected outcomes. For instance, if a user enters valid credentials into a login form, positive testing would confirm that the user gains access to their account. This type of testing helps to ensure that essential features work correctly under normal circumstances.
Negative Testing
In contrast, negative testing is concerned with ensuring that the software can gracefully handle invalid input or unexpected conditions. The objective is to identify potential failures and establish that the application does not produce unwanted or erroneous behavior when presented with bad data. For example, if a user enters an incorrect password, negative testing would verify that an appropriate error message is displayed, and access is denied. This testing is crucial for enhancing the robustness and security of the application.
In summary, both positive and negative testing play vital roles in the comprehensive assessment of software functionality, ensuring both expected and edge-case scenarios are adequately tested.