Testing Strategies

Black Box Test: The tester views the program (or the unit to be tested) as black box whose internals are not known. The test cases are solely derived from the specification but not from informations about the implementation.

White Box Test: Test cases are derived from the internal structure (of the unit or the whole program) and the specification (to compare the actual vs the expected results). This strategy assumes that many faults are hidden in individual expressions, statements, and conditions. Test cases are developed to cover all statements, possible branches, conditions, and/or paths.

	Black Box Test: The tester views the program (or the unit to be tested) as black box whose internals are not known. The test cases are solely derived from the specification but not from informations about the implementation.
	White Box Test: Test cases are derived from the internal structure (of the unit or the whole program) and the specification (to compare the actual vs the expected results). This strategy assumes that many faults are hidden in individual expressions, statements, and conditions. Test cases are developed to cover all statements, possible branches, conditions, and/or paths.