Can you explain the difference between positive and negative testing?

Positive testing is when you test to confirm that the software functions as expected, while negative testing is when you test to identify unexpected or incorrect behavior. In positive testing, you focus on valid inputs and expected outcomes, ensuring that the software meets the specified requirements. On the other hand, negative testing involves testing with invalid inputs or edge cases to see how the software handles them. For example, in positive testing, you would test if a login form accepts valid usernames and passwords and grants access. In negative testing, you would test if the login form rejects invalid usernames or passwords and displays appropriate error messages.

Positive testing focuses on verifying that the software behaves as expected with valid inputs and meets the specified requirements. For example, during positive testing, I developed test cases to check if a registration form accepts valid email addresses and displays a confirmation message upon successful registration. On the other hand, negative testing is about identifying unexpected or incorrect behavior by testing with invalid inputs or edge cases. In my previous role, I performed negative testing by entering invalid characters in a search field and ensuring that an appropriate error message is displayed. These testing approaches require analytical thinking and attention to detail to identify potential issues. Additionally, strong communication skills are crucial to report and document any issues found during testing.

Positive testing involves testing the software with valid inputs to ensure it functions as expected and meets the specified requirements. In my previous role as a Quality Assurance Specialist, I developed and executed comprehensive positive test plans for a web application. For example, when testing the registration process, I created test cases to verify that the system accepts different valid email formats, including special characters and uppercase letters, to ensure a wide range of user inputs. This required thorough analytical thinking and attention to detail to cover all possible variations. On the other hand, negative testing is about testing with invalid inputs or edge cases to identify unexpected behavior. In one instance, I performed negative testing on a payment form by entering invalid credit card numbers to confirm that the system appropriately handles errors and displays clear error messages. This involved collaborating with developers to understand the expected behavior and proposing improvements to enhance the user experience. Communication played a crucial role in conveying my findings and recommendations to the development team, which led to prompt bug fixes and the overall improvement of the application's quality.