Quote Originally Posted by vahinigoud View Post
When the developer do not accepts it is a bug then what to do?

what is blackbox testing and white box testing?
Its hard to convince the developer that there is a bug in the application developed by him/her, for that you need to

1. Reporduce that in the earlier versions
2. Write the steps in detail, from the scratch(even if the developer is aware) of the steps
3. Give as much as info you can, attach the relevant materila , screenshots etc.
4. Try to say on which database/version etc is the issue happening.

Blackbox Testing:Black box testing takes an external perspective of the test object to derive test cases. These tests can be functional or non-functional, though usually functional. The test designer selects valid and invalid input and determines the correct output. There is no knowledge of the test object's internal structure.

White Box Testing;White box testing (a.k.a. clear box testing, glass box testing or structural testing) uses an internal perspective of the system to design test cases based on internal structure. It requires programming skills to identify all paths through the software. The tester chooses test case inputs to exercise paths through the code and determines the appropriate outputs. In electrical hardware testing, every node in a circuit may be probed and measured; an example is in-circuit testing (ICT).