Basic Slide for White Box And Black Box Testing with the module of Unit testing is here.

1. White Box & Black Box
Testing
Presented By:
Nitish Mhaske

2. What is White Box Testing ?
 Testing internal coding and infrastructure
 Identify which line of code is actually executed and which is not,
which may indicate that there is either missing logic or a typo.
 Internal Structure known in addition to i/o & Relationships.
 Often used for verification.
 Done by the Developers.
 Structure-based / Glass-box testing
 Called Because here the testers require knowledge of how the
software is implemented.

3. How to encounter a bug in white box
testing?
 It involves testing a series of predefined inputs against expected outputs ,
so when a specific input does not result in the expected output, you have
encountered a bug

4. Advantage of Whitebox Testing
 Testing can be commenced at an earlier stage.
 One need not wait for the GUI to be available.
 Testing is more thorough, with the possibility of covering most paths.
 The other advantage of white box testing is that it helps in optimizing
the code

5. Disadvantage of Whitebox Testing
 As knowledge of code and internal structure is a prerequisite.
 A skilled tester is needed to carry out this type of testing, which
increases the cost
 Not looking at the code in a runtime environment...

6. What is Blackbox Testing?
 Blackbox Testing is a software testing
method in which the internal structure
of the item being tested is not known
to the tester..
 Blackbox testing is often used for
Validation..
 Black box testing is done by the
professional testing team.
 Type
1. Functional
2. Non Functional
3. Reg Test

7. Advantage of Blackbox Testing
 Tester can be non-technical.
 Tester needs no knowledge of implementation, including specific
programming languages
 Tests will be done from an end user's point of view. Because end user
should accept the system.

8. Disadvantage of Blackbox Testing
 Not all properties of a software product can be tested
 The reason for a failure is not found.
 Only a small number of possible inputs can be tested and many
program paths will be left untested..

9. Unit Testing
 Unit testing is that validate individual unit of source code working
properly…
 Unit is smallest testable part of an application..
 Mostly done by developers of the modules..
 Done after Code compilation

10. Goal of Unit Testing
 To isolate each part of program and show that individual parts are
correct..
 Typically Written & run by s/w developer to ensure design &
behaviour

11. Advantage of Unit Testing
 Reduces the level of bugs in production code..
 Unit Testing inspires confidence..
 Makes easier to change and refactor code.
 Concern with the correctness & Completeness
 Isolate each part
 Check conditional logic
 Check for wiring bugs

12. Disadvantage of Unit Testing
 Unit-testing will not catch every error in the program.
 It only tests the functionality of the units….

13. Thank You…