What is Integration Testing?What is Bottom Up & Top Down
Testing?
What actually the Stub & Driver is?
Explain me giving practical example?

Answer Posted / hardik

Integration Test
Purpose:
To ensure that code is implemented and designed properly
to take unit tested modules and build a program structure that has been dictated by design
 IT only after UT
Combining the individual components to uncover errors associated with interfacing
Normally: Black box oriented
Doer: independent Test team
Tests interactions between two or more units or
components. Usually done by programmers.
Emphasizes interfaces.

Issues:
In what order are units combined?
How do you assure the compatibility and correctness of externally-supplied components?
How are units integrated? What are the implications of this order?

Top-down => need stubs; top-level tested repeatedly.
Bottom-up => need drivers; bottom-levels tested repeatedly.
Critical units first => stubs & drivers needed; critical units tested repeatedly.

Is This Answer Correct ?    0 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how mapp the defect id in quality center?

1697


Please can any one tell me 1).Types of reports 2).Types of Meetings.

1315


Unix question: 1)command to print a list of files containing a particular word. 2) what does a .profile mean. 3) what is a file server? 4) Command to move towards left in vi editor explain grep and find commands using example.

2077


1...DIFF BETWEEN QTP AND WIN RUNNER? 2... CHECKPOINTS AND EXPLAIN EACH OF THEM? 3...WHY IS STEP GENERATOR? 4... WHAT IS THE DIFF BETWEEN FUNCTIONS AND SUB ROUTINE?

1451


How could you present test strategy for the product testing?

654






Changes and enhancements to system?

1597


can u merge 10GUI map files into a single GUI map file in winrunner?

1560


Should testing be done only after the build and execution phases are complete?

1087


could u pls anyone tel me .."which is the best instute that provides eficient practical knowledge and also real-time oriented knowldge to do a project in manual and automation testing..in hyd" pls send me to dis mail-id if u find any..? sinducute17@gmail.com

1658


Hi to all, im vaibhav i joined a MNC as a tester and i got a banking (HSBC) project can any one tell me as a fresher what kind of strategy i sholud use to perform better. thanx

1894


How do u prepare test environment for ur application?

1681


Write test cases on duster

4255


How to test the search functionality.For example in naukri advance search is there.how ca i test that page.

1667


Please let me know how to test labels in web application manually and how the testcases would be. Please provide me a sample testcase

1131


Hi guys,I have 3+ years of exp in manual testing in a bangalore based MNC company.I Like to jump in chennai.So please if u know any jobs in chennai firms please let me know in my email-id. anbarasu2k@rediffmail.com. cheers, anbarasu.

1475