Answer / abdul sameer

Black Box Testing:- Black Box Testing is a System Testing.
Here we check the complete functionality of the application.
Here the tester does not examine the programming code and
does not need the knowledge of any coding standards. Here he
enters an input and check whether we are able to get the
exact output irrespective of what is happening in the code.
Here we have functional testing and non-functional testing.
Again both are of different concepts.


White Box Testing:- White Box Testing is non-system
testing. Here the tester should have the knowledge of coding
standards. Here we should review the entire coding part like
we should go through the statement coverage testing, branch
testing and loop testing, mean to say that we have to check
the complete coding standards and mainly here we do Mutation
testing (like we make some changes to the existing code and
run the code and check whether we are able to get any error
or not). This again has lot of subject to learn, can’t be
described but you have to refer to the books to get the
complete knowledge on it. For more clarification if you have
the book called “Art of Software testing” it will make u
clear on these topics.

Answer / abdul sameer

White Box Testing:- White box testing is based on knowledge
of the internal logic of an application's code. DIfferent
test that take place here are
1. coverage of code statements
2. Branch testing
3. Path Tesitng
4. Condition checking testing.
5. Mutation Testing.

Both are done by Test Engineers but only difference is The
Tester who does Black Box Testing do have the knowledge of
coding part usually we take one of the developers as White
Box Test engineer.


Black Box Testing:- Black box testing is functional testing,
not based on any knowledge of internal software design or
code. Black box testing is based on requirements and
functionality.
Different test that take place here are

1.Boundary value analysis and Equivalence testing
2. Error Guessing
3. Error Handling
4. Compactability testing
5. Parallel testing
6. Configuration Testing.

Apart from these we have lot.

Answer / ram mohan reddy

Black Box Testing : If one perform testing only on the functional part of an Application without having structural knowledge then that method of testing is known as Black box Testing. Usually it is done by Test engineer

White Box Testing : If one perform testing on the structural part of an application then that method of testing is known as
White Box Testing.Usually it is done by Developers.
Ex:coding(Unit Testing)

Regards
Ram Mohan reddy

Answer / aparna

White box testing is done by the person who is having deeper
knowledge about the module and mostly this will be done by
Developers.
Example: Unit Testing

Black Box testing is done by the tester who is not having
deeper knowledge about software, only based on
specifications testing is done
Example: System Acceptance Testing

What is mutation testing and when can it be done?

3 Answers  

---

Hi All, I am new in testing field. I got an interview and the question was asked- What would be your high level test case on the following scenario. There are 2 fields one is SCORE and other is GRADE and there is a go button. Scenario is If score is 90- 100 then grade should be A, if Score is 80-90 then B, if 70- 80 then C Else F. So I told that - I will check Boundary values by giving max +1 and min-1 values. I will check the functionality is working as per the requirement or not. I will include + and - testing. But seems like my answer was not correct, obviously because I don't have much experience. So plz provide me the best answer of this Q ? Thanks in advance. Preeti

11 Answers   Accenture,

---

wht is change management and configuration management?

2 Answers  

---

What r the risks involved in testing?

1 Answers   Wipro,

---

any example for high siviority and low priority bug

2 Answers   Symbiosis,

---

contents of test report

3 Answers   CTS,

---

Can anybody describe what might be the reasons or situations where the developer doesn't accept a bug as a bug , raised by tester ?

13 Answers   Accenture,

---

How will you test or write test cases when you dont have BRS and SRS?

5 Answers  

---

Hello. I am not here to answer your question. I jus found a job as software QA engr. And i am totally new to software testing. So can someone pls help me in the following scenario? there is this registration screen, and it contain: One textbox called Nickname which only accept alphanumerical One textbox called Contact which only accept numerical, One textbox called Email which can be filled with alphanumerical and symbol and One button called Register now becos there is so many textboxes, where i can filled with alphabet, number, symbol, "just space", leading zeros, leading space. there will be lots of combination. can someone pls help.. i will be appreciated if u can post the test case of the scenario i mentioned. Lots of Thanks

0 Answers  

---

what is ur favourite bug?

10 Answers  

---

tell me different deft reports ?

0 Answers  

---

1. when to start and stop testing ?

5 Answers  

---