Grey box testing – Black box testing

Grey box testing – Black box testing

Grey box testing is a software testing technique that combines elements of black box and white box testing. In grey box testing, the tester has partial knowledge of the internal workings or code structure of the application, but does not have complete access to the source code.

Grey box testing is used to identify defects or issues in the software that may not be apparent from black box testing alone, while also ensuring that the software meets the specified requirements and behaves as expected. Grey box testing can be especially useful for testing complex applications, where a combination of black box and white box testing may be necessary to ensure adequate test coverage.

Some examples of grey box testing techniques include:

Data-driven testing: This technique involves using test data that is based on knowledge of the internal workings of the application. Test cases are designed to test specific parts of the code or data structures.

API testing: This technique involves testing the application’s API (Application Programming Interface) using knowledge of the API structure and functionality.

Integration testing: This technique involves testing the interaction between different modules or components of the application using knowledge of the internal architecture and data flows.

Code review: This technique involves reviewing the code to identify potential defects or issues based on knowledge of the application’s internal workings. Grey box testing can be a powerful tool for software testers, as it combines the advantages of both black box and white box testing. By using a combination of black box and white box testing techniques, testers can identify defects or issues in the software more effectively and ensure that it meets the specified requirements and behaves as expected.

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