Object Oriented Testing(OOT) presentation slides

Represented By : Zain Raza, Haris Jameel &
Ateeq Butt.
Discipline : Information Technology .
5th Semester.
Group # 8.

 OO-Testing.
 Requirement Testing
 Analysis and Design Testing
 Code Testing
 User Testing
 Integration Tests
 System Tests
 Testing Methods

 Object-Oriented Testing is a collection of testing techniques to
verify and validate object-oriented software.
 Testing takes place
 To complete the OOT cycle mention below testing are required.
 Requirement Testing
 Analysis and Design Testing
 Code Testing
 Integration Tests
 System Tests
 User Testing
 It’s used to discuss test plans and execution for projects.
Analysis Design Code TestRequire
ment

Requirement Testing
Analysis Testing
Design Testing
Code testing
Integration Testing
Unit Testing
User Testing
System Testing

Requirements based Testing :
Requirements-based testing is a testing approach in which test
cases, conditions and data are derived from requirements. It
includes functional tests and also non-functional attributes such
as performance, reliability or usability.
Requirements Testing process:
 Testing must be carried out in a timely manner.
 Testing process should add value to the software life cycle, hence
it needs to be effective.
 Requirement testing process needs to be efficient as well.
 Testing must provide the overall status of the project, hence it
should be manageable.

Stages in Requirements based Testing:
 Defining Test Completion Criteria - Testing is completed
only when all the functional and non-functional testing is
complete.
 Design Test Cases - A Test case has five parameters namely
the initial state or precondition, data setup, the inputs,
expected outcomes and actual outcomes.
 Execute Tests - Execute the test cases against the system
under test and document the results.
 Verify Test Results - Verify if the expected and actual results
match each other.
 Verify Test Coverage - Verify if the tests cover both functional
and non-functional aspects of the requirement.
 Track and Manage Defects - Any defects detected during the
testing process goes through the defect life cycle and are
tracked to resolution. Defect Statistics are maintained which
will give us the overall status of the project.

Analysis Testing :
Analysis testing is the process of looking at
something that can be used to derive information.
In analysis we collect information that is needed in
order to start the test, In it we make documentation
on requirements, design specifications, product risk
analysis,
architecture and interfaces.
Analysis testing is used to understand what
the system should do once built.
Sometimes analysis testing can be based on user’s
experienced knowledge about system or software
which may not be documented.

Design Testing :
By design testing we create a plan how to
implement an idea and technique.
So, Design Testing creating a set of inputs
for the given software that will provide a set of
expected outputs.
There are two main Design Testing Techniques :
 Static Testing.
 Dynamic Testing.

Static & Dynamic Testing Techniques

•It does not need computer as
the testing of program is
done without executing the
program. For
example: reviewing the code.
•It starts early in the Life cycle
and so it is done during the
verification process.
•Most static testing techniques
can be used to test documents
like source code, design
documents and models,
functional specifications and
requirement specifications.
•Dynamic testing technique
needs computer for testing.
•It is done during Validation
process.
•Example of this Dynamic
Testing Technique: Unit
testing, integration
testing, system testing.

Code-Based Testing:
Code-based testing corresponds to the testing that is carried out on code
development, code inspection, unit testing in software development
process.
The Code-based testing consists of following testing:
 Dynamic Testing - Statement coverage, Branch coverage, Path
coverage.
 Checking for Complexity of Code using techniques like Cyclomatic
Complexity.
 Static Testing - Code Inspection, Code Walkthrough, Code Review, Code
Audit.

Object Oriented Testing(OOT) presentation slides

Unit testing, a testing technique in which individual modules or
units of source code are tested by the developer to find out the
issues and to make sure that code meets its design and
requirements and behaves as expected.
Unit Testing - Advantages:
 Reduces Defects in the Newly developed features or reduces
bugs when changing the existing functionality.
 Reduces Cost of Testing as defects are captured in very early
phase.
 Improves design and allows better refactoring of code.
 Unit Tests, when integrated with build gives the quality of the
build as well.

Unit Testing Techniques:
Black Box Testing - Using in which the
user interface, input and output are tested.
White Box Testing - used to test each
functions behavior of the software.
Gray Box Testing - Used to execute tests,
risks and assessment methods.

Testing phase in which individual software modules are combined
and tested as a group. It occurs after unit testing and before
validation testing.
Purpose of Integration Testing :
The purpose of integration testing is to verify the functional, performance,
and reliability between the modules that are integrated.
Integration Strategies:
 Big-Bang Integration
 Top Down Integration
 Bottom Up Integration
 Hybrid Integration

The process of performing a variety of test on a system to
explore functionality or to identify problems.
Client test the system to find out the bugs in system/software.
For example : a tester may put a wrong input in a field that
basically designed to only accept states of USA , for just check
how the system will respond to the incorrect input.
Purposes of System Testing :
• System testing is most often the final test to verify that the system to be
delivered meets the specification and its purpose.
• System testing is carried out by specialists testers or independent
testers.
• System testing should investigate both functional and non-functional
requirements of the testing.

(UAT) is the last phase of the
software testing process.
It’s a testing methodology, clients/end
users involved in testing the product to
check or validate the software against their
requirements. It is performed at client
location at developer's site.

Following are the steps involved in in-house UAT:
 Planning: The UAT strategy is outlined during the planning step.
 Designing test cases: Test cases are designed to cover all the functional
scenarios of the software in real-world usage. They are designed in a simple
language and manner to make the test process easier for the testers.
 Selection of testing team: The testing team is comprised of real world end-
users.
 Executing test cases and documenting: The testing team executes the
designed test cases. Sometimes it also executes some relevant random
tests. All bugs are logged in a testing document with relevant comments.
 Bug fixing: Responding to the bugs found by the testing team, the software
development team makes final adjustments to the code to make the
software bug-free.
 Sign-off: When all bugs have been fixed, the testing team indicates
acceptance of the software application. This shows that the application
meets user requirements and is ready to be rolled out in the market.

Fault based testing.
Scenario based testing.

Scenario Base testing :-
Scenario testing is a software testing technique by which we test the software
activity that uses scenarios. concentrate on the principal objectives and
requirements. If the scenario runs from start to finish, then it passes.
scenario is just a story which explains the usage of the software by any end user.
Characteristics of Good Scenarios:-
0-Scenario testing helps testers to explore how the software will work in the hands of an
end user.
1- It's helps to test the complex system in a better way.
2- It's credible or reliable.
3- Easy to evaluate or understandable.
4- It's helps in finding lot of defects which cannot be found with other types of testing.
Scenario Testing Risks:-
1-When the product is unstable, scenario testing becomes complicated.
2-Scenario testing are not designed for test coverage.
3-Time-consuming to generate.
4-Difficult to manage.

Fault Base Testing :
• best reserved for operations and the class level
• uses the inheritance structure
• tester examines the OOA model and hypothesizes a set of plausible
• defects that may be encountered in operation calls and message
connections and
• builds appropriate test cases
• misses incorrect specification and errors in subsystem interactions
State-Based Testing :-
A program moves from state to state. In a given state,
some inputs are valid, and others are ignored or rejected.
In response to a valid input, the program under test does something
that it can do and does not attempt something that it cannot do.
In state-based testing, we walk the program through a large set of state
transitions
and check the results carefully, every time.

Object Oriented Testing(OOT) presentation slides

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Object Oriented Testing(OOT) presentation slides