Chapter 23 Self-Check Quiz
1. Which of these should every object-oriented model be tested for?
a. completeness
b. consistency
c. correctness
d. all of the above
2. Because if the evolutionary nature of OO software development, there is no
cost savings attributed to early detection of errors.
a. True
b. False
3. The correctness of the OOA and OOD models is judged based on the
a. model's conformance to real world problem domain
b. review of the connections between classes
c. review of the modeling conventions used
d. both a and c
4. To facilitate assessing the consistency of the OOA and OOD models, each
class and its connections to other classes should be examined by reviewing the
a. CRC model
b. object-relationship model
c. state transition function
d. both a and b
5. Class testing for OO software is equivalent to unit testing in conventional
software testing.
a. True
b. False
6. The OO testing integration strategy involves testing
a. groups of classes that collaborate or communicate in some way
b. single operations as they are added to the evolving class
implementation
c. operator programs derived from use-case scenarios
d. none of the above
7. To develop validation tests for OO software the tester should
a. focus on user visible actions
b. derive test cases from the object-behavior model
c. look at use-cases from the analysis model
d. all of the above
8. Test case design for OO software is driven by the algorithmic detail of the
individual operations.
a. True
b. False
9. Encapsulation of attributes and operations inside objects makes it easy to
obtain object state information during testing.
a. True
b. False
10. Use-cases can provide useful input into the design of black-box and statebased tests of OO software.
a. True
b. False
11. Fault-based testing is best reserved for
a. conventional software testing
b. operations and classes that are critical or suspect
c. use-case validation
d. white-box testing of operator algorithms
12. Testing OO class operations is made more difficult by
a. encapsulation
b. inheritance
c. polymorphism
d. both b and c
13. It is not necessary to test operators inherited by other objects.
a. True
b. False
14. Scenario-based testing
a. concentrates on actor and software interaction
b. misses errors in specifications
c. misses errors in subsystem interactions
d. both a and b
15. Deep structure testing is not designed to
a. object behaviors
b. communication mechanisms
c. exercise object dependencies
d. exercise structure observable by the user
16. Random order tests are conducted to exercise different class instance life
histories.
a. True
b. False
17. Which of these techniques is not useful for partition testing at the class level
a. attribute-based partitioning
b. category-based partitioning
c. equivalence class partitioning
d. state-based partitioning
18. Multiple class testing is too complex to be tested using random test cases.
a. True
b. False
19. Test derived from behavioral class models should be based on the
a. data flow diagram
b. object-relation diagram
c. state transition diagram
d. use-case diagram
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