Functional & Non-Functional Software Testing
What is Functional Testing?
=> Functional testing is a type of software testing that verifies whether each feature And functions of a software application work as per the specified requirements. It is a Black-Box testing method meaning the tester is not connected of the internal coding but only how applications work externally.
Example: website payments Gateway working as required, form submission, navigation & UI.
There are six types of Functional testing
1. Unit Testing:
Testing one small part of the software to check if it works correctly.
Example: Checking if a calculator adds two numbers correctly.
2. Integration Testing:
Testing how different parts of the software work together.
Example: Checking if the login page correctly connects with the database.
3. System Testing:
Testing the complete software system as a whole.
Example: Testing the entire app to check login, dashboard, and logout work properly.
4. User Acceptance Testing (UAT):
Testing done by end users to confirm the software meets their needs.
Example: Customers checking a shopping app before it is officially launched.
5. Regression Testing:
Testing the software again after changes to ensure existing features still work.
Example: Checking login works properly after adding a new feature.
6. Smoke Testing:
Quick testing to check if the main features of the software work.
Example: Checking if an app opens and the login screen loads.
What is Non-Functional testing?
=> Non-functional testing Test Tests the performance speed security usability and reliability of an application.
Example: checking how fast a website loads 1000 users use it at the same time.
There are six types of Non-Functional testing
1. Performance testing
2. Security testing
3. Usability testing
4. Scalability testing
5. Compatibility testing
6. Reliability testing
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