Testing the application with the knowledge of the internal
structure ..it comes under white box testing..In General
Developers are responsible for white box testing?

Testing the application with specific knowledge on the
domain and internal logic is called WB testing.
  Developers will conduct the WB testing

testing the functionality of the application who has
knowledge on the structure and internal flow of the program

this is usually done by developer but in bigger company u
have a separate white box testing team where as in small
company developer will do this testing

testing an application at (program)coding level for any 
faults or malfunction of the program execution is generaly 
treated as white box testing.
the person who has done the program will to conduct the WB 
testing.

This testing is done by the one who is having Programming
knoeledge.But mostly programmers are responsible for this
because we cant except a tester with programming knowledge.

White Box Testing is the testing which is done having the
complete knowledge of the internal structure of the software.

 nitin9360@yahoo.com

It is a method of testing in which one can perform testing 
on the program part of an application, having internal 
structural knowledge of it.

      This type of testing focus upon structural part of an 
application.This type of testing is done by Developers.

It is a type of testing in which code is accessible to 
you,mostly developers are responsible for white box testing.

Testing the application with the knowledge of Internal
workings/structure of the program is said to be white box
testing.

It will be done by the tester who has the knowledge of that
code.

White box testing involves coding. Testing the internal 
structure (coding) of the application is known as White box 
testing.  White box testing is performed by the developer.