Introduction
Black box testing is testing the application program without knowing the internal details of the application code, design, etc. The Tester executes a test case and observes the test output. It comes under the Functional Testing of the application. Functional testing is executing functional test cases of the application to check if the application is working as intended as per the Functional requirements document.
Black box testing techniques
- Boundary Value Analysis (BVA)
- Equivalence Class Testing
- Decision Table based testing
- Special Value Testing
We use these black-box techniques to make the tests intelligent. We all know that exhaustive testing is not possible. In BVA, the testers check the boundaries of the input domain for the defects.
In Equivalence class testing, the QA team divides the input test cases into equivalence classes. So, if the testing team has less time for testing, executing at least one test case in an equivalence class is more intelligent testing.