Software testing methods are essential for ensuring the quality, reliability, and performance of software applications. These methods are categorized based on their approach to testing and the level of knowledge required about the system's internal workings.

Black-Box Testing

Black-box testing focuses on testing the software's functionality without any knowledge of its internal structure or code. Testers interact with the system's user interface by providing inputs and verifying outputs.

Example:

• Testing a login page by entering valid and invalid credentials.

Advantages:

• Suitable for large codebases.

• Does not require knowledge of the programming language or system architecture.

Disadvantages:

• Limited coverage as internal code is not tested.

• Test case design can be challenging.

White-Box Testing

White-box testing involves examining the internal logic and structure of the code. Testers need access to the source code to identify and test specific code paths.

Example:

• Testing individual functions or loops in the code.