What Functional Testing?
functional testing
Functional testing is a form of testing and a quality
assurance process helps to validate a system or component to a variety of
functional specifications and requirements outlined. Functional testing is a
kind of black box testing as the source code of the application is not
considered during the testing process.
The main purpose of the form of software testing is to test
every function of the application to provide specific input and output
validates against functional requirements.
In simple words, this form of testing to verify that the
software performs in a way users expect. As this type of testing is really
based on the specifications of the program, also known as specification-based
testing. In the process of this testing, QA engineers to focus on validating
the system to verify functional specifications and specific set of features to
the user's specifications.
Why Functional Testing is required?
Functional testing service
The need for functional testing is very important in
validating the quality and functionality of the software. Through this software
testing techniques, quality assurance team to verify the functionality of the
software-based Software Requirements Specification (SRS) and ensure the system
functions according to specifications.
Tests help to check whether the system is fixed to the
release and error free. This test does not depend on assumptions about the
structure of the system, however, make sure to provide high quality products.
Basically, this test method is used to test usability features, certain error
conditions, accessibility features joint examination by testing another
important function of the software.
What kind of Functional Testing?
type of functional
testing
Unit Testing:
Functional testing - Unit Testing
Unit testing is the first phase of software testing in
software development life cycle (SDLC). This type of functional testing
performed by the developer and they write scripts to validate whether small
units work according to the requirements of the application or not.
Component Testing:
-Component functional testing Testing
This type of testing is similar to functional unit testing,
but the important difference is that it is done by the examiner and it will
examine each object independently of the application with or without isolation
of other software objects.
Smoking Tests:
Functional testing - Smoke Testing
Smoke testing is done after each build is released. Type of
functional testing is also known as build verification testing. This process
helps to test whether all aspects of the test environment running successfully
and whether the build is stable or not and justify if a building can be used
for further testing process.
Sanity Testing:
Functional testing - Sanity Testing
Sanity testing is usually done after the smoke testing, ie
after receiving the software build with minor changes were made. In simple
words, it is used to validate code changes introduced continue to work as
expected.
Integration tests:
Functional testing - Integration Testing
Integration Testing is one of the important methods of
software testing in which individual application modules are combined and
tested as a group to identify the function after combining the different
modules.
Regression Testing:
regression testing
Functional software testing method is helpful to ensure the
new changes made to the code does not affect the features or functionality of
existing applications.
System Testing:
Functional Testing System testing
It is also a method of functional testing performed after
integration testing. This testing phase system used to validate the integrated
software application.
User Acceptance Testing (UAT)
This is the end software testing phase, in which the end
user or the client takes the role of test engineers to validate whether the
application has been developed to meet the requirements or not. UAT is kind of
important functional testing performed prior to moving the application to
production.
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