Grey Box Testing

What is Grey Box Testing?

Grey box testing is a combination of white box and black box testing, where the tester has partial knowledge of the internal workings of the application (e.g., database structure or architecture) while testing it from a functional, user-facing perspective.

Key Characteristics

• Combines the benefits of both black box and white box testing.
• Testers understand enough of the internals to design smarter, more targeted test cases.
• Commonly used for integration testing and testing web applications.

Examples of Grey Box Testing

• Testing an application while knowing its database schema, to design tests around specific data conditions.
• Testing APIs with knowledge of the underlying architecture but without full access to the source code.