图 4.2.1 Black-box test Also called structured,data-driven,functional,or input/output-driven testing. Seeks to verify that the module conforms to the specified input and output while ignoring the actual code. It is rarely possible to test all modules for all possible input cases,which may be a huge number of modules. Usually time constraints permit only about 1000 test cases per module,so tests should be chosen carefully. Exhaustive testing is feasible only when input combinations are small. >校长办公室 >Office of the President¾校长办公室 ¾Office of the President 4.2.1 Black-box test ‹ Also called structured, data-driven, functional, or input/output-driven testing. ‹ Seeks to verify that the module conforms to the specified input and output while ignoring the actual code. ‹ It is rarely possible to test all modules for all possible input cases, which may be a huge number of modules. ‹ Usually time constraints permit only about 1000 test cases per module, so tests should be chosen carefully. ‹ Exhaustive testing is feasible only when input combinations are small