The validate that the internal program logic is

The purpose of testing is
to discover errors. Testing is the process of trying to discover every
conceivable fault or weakness in a work product. It provides a way to check the
functionality of components, sub-assemblies, assemblies and/or a finished
product It is the process of exercising software with the intent of ensuring
that the

Software system meets its
requirements and user expectations and does not fail in an unacceptable manner.

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There are various types of test. Each test type addresses a specific testing
requirement.

TYPES OF TESTS

Unit Testing

 Unit testing
involves the design of test cases that validate that the internal program logic
is functioning properly, and that program inputs produce valid outputs. All
decision branches and internal code flow should be validated. It is the testing
of individual software units of the application. It is done after the
completion of an individual unit before integration. This is a structural
testing, that relies on knowledge of its construction and is invasive. Unit
tests perform basic tests at the component level and test a specific business
process, application, and/or system configuration. Unit tests ensure that each
unique path of a business process performs accurately to the documented
specifications and contains clearly defined inputs and expected results.

Unit testing is usually
conducted as part of a combined code and unit test phase of the software
lifecycle, although it is not uncommon for coding and unit testing to be
conducted in two distinct phases.

Test strategy and approach

Field testing will be
performed manually and functional tests will be written in detail.

 

Test objectives

·      
All field entries must work properly.

·      
Pages must be activated from the identified
link.

·      
The entry screen, messages and responses must
not be delayed.

Features to be tested

·      
Verify that the entries are of the correct
format

·      
No duplicate entries should be allowed

·      
All links should take the user to the correct
page.

Integration Testing

 Integration tests
are designed to test integrated software components to determine if they run as
one program.  Testing is event driven and is more concerned with the basic
outcome of screens or fields. Integration tests demonstrate that although the
components were individually satisfaction, as shown by successfully unit
testing, the combination of components is correct and consistent. Integration
testing is specifically aimed at exposing the problems that arise from the
combination of components.

Software integration
testing is the incremental integration testing of two or more integrated
software components on a single platform to produce failures caused by
interface defects.

The task of the
integration test is to check that components or software applications, e.g.

components in a software system or – one step up – software applications at the
company level – interact without error.

Test Results: All
the test cases mentioned above passed successfully. No defects encountered.

 

 

Acceptance Testing

User Acceptance Testing is
a critical phase of any project and requires significant participation by the
end user. It also ensures that the system meets the functional requirements.

Test Results: All
the test cases mentioned above passed successfully. No defects encountered.

Functional Testing

Functional tests provide
systematic demonstrations that functions tested are available as specified by
the business and technical requirements, system documentation, and user
manuals.

Functional testing is
centered on the following items:

Valid Input
              :
 identified classes of valid input must be accepted.

Invalid Input
            :
identified classes of invalid input must be rejected.

Functions
                 :
identified functions must be exercised.

Output
                    : identified classes of application
outputs must be exercised.

Systems/Procedures:
interfacing systems or procedures must be invoked.

Organization and
preparation of functional tests is focused on requirements, key functions, or
special test cases. In addition, systematic coverage pertaining to identify
Business process flows; data fields, predefined processes, and successive
processes must be considered for testing. Before functional testing is
complete, additional tests are identified and the effective value of current
tests is determined.

System Testing

 System testing
ensures that the entire integrated software system meets requirements. It tests
a configuration to ensure known and predictable results. An example of system
testing is the configuration oriented system integration test. System testing is
based on process descriptions and flows, emphasizing pre-driven process links
and integration points. There will be different layers to test and this system
testing comes under higher environment will restricted access to normal
testers.

White Box Testing

White Box Testing is a
testing in which the software tester has knowledge of the inner workings,
structure and language of the software, or at least its purpose. It is purpose.

It is used to test areas that cannot be reached from a black box level.

Black Box Testing

Black Box Testing is
testing the software without any knowledge of the inner workings, structure or
language of the module being tested. Black box tests, as most other kinds of
tests, must be written from a definitive source document, such as specification
or requirements document, such as specification or requirements document. It is
a testing in which the software under test is treated, as a black box. You
cannot “see” into it. The test provides inputs and responds to outputs without
considering how the software works.