Testing Strategies - White Box (Code) and Black Box (Specification) Testing

Testing Strategies:

- A Test Case is a set of data that the system will process as normal input.
- Each Test Case is designed with the intent of finding errors.

There are two general strategies for testing software.

Code Testing: (White Box Testing)

- It examines the logic of the program.

• Every Instruction and Path is tested in this strategies.
• Virtually impossible to perform this kind of testing for large business system.
• It doesn’t guarantee against software failure,even if we perform it.
• We can’t check whether software meets its specification.
• It doesn’t check the range of data that the program will accept.

Specification Testing: (Black Box Testing)

• We can check whether software meets its specification under various condition.
• Assumption is that “If program meets the specification, It will not fail.
• More efficient because it focus on the way software is expected to be used.