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Answer Posted / shridatt
Hi the different types of software testing are
Black box testing - Internal system design is not
considered in this type of testing. Tests are based on
requirements and functionality.
White box testing - This testing is based on knowledge of
the internal logic of an application’s code. Also known as
Glass box Testing. Internal software and code working
should be known for this type of testing. Tests are based
on coverage of code statements, branches, paths, conditions.
Unit testing - Testing of individual software components or
modules. Typically done by the programmer and not by
testers, as it requires detailed knowledge of the internal
program design and code. may require developing test driver
modules or test harnesses.
Incremental integration testing - Bottom up approach for
testing i.e continuous testing of an application as new
functionality is added; Application functionality and
modules should be independent enough to test separately.
done by programmers or by testers.
Integration testing - Testing of integrated modules to
verify combined functionality after integration. Modules
are typically code modules, individual applications, client
and server applications on a network, etc. This type of
testing is especially relevant to client/server and
distributed systems.
Functional testing - This type of testing ignores the
internal parts and focus on the output is as per
requirement or not. Black-box type testing geared to
functional requirements of an application.
System testing - Entire system is tested as per the
requirements. Black-box type testing that is based on
overall requirements specifications, covers all combined
parts of a system.
End-to-end testing - Similar to system testing, involves
testing of a complete application environment in a
situation that mimics real-world use, such as interacting
with a database, using network communications, or
interacting with other hardware, applications, or systems
if appropriate.
Sanity testing - Testing to determine if a new software
version is performing well enough to accept it for a major
testing effort. If application is crashing for initial use
then system is not stable enough for further testing and
build or application is assigned to fix.
Regression testing - Testing the application as a whole for
the modification in any module or functionality. Difficult
to cover all the system in regression testing so typically
automation tools are used for these testing types.
Acceptance testing -Normally this type of testing is done
to verify if system meets the customer specified
requirements. User or customer do this testing to determine
whether to accept application.
Load testing - Its a performance testing to check system
behavior under load. Testing an application under heavy
loads, such as testing of a web site under a range of loads
to determine at what point the system’s response time
degrades or fails.
Stress testing - System is stressed beyond its
specifications to check how and when it fails. Performed
under heavy load like putting large number beyond storage
capacity, complex database queries, continuous input to
system or database load.
Performance testing - Term often used interchangeably
with ’stress’ and ‘load’ testing. To check whether system
meets performance requirements. Used different performance
and load tools to do this.
Usability testing - User-friendliness check. Application
flow is tested, Can new user understand the application
easily, Proper help documented whenever user stuck at any
point. Basically system navigation is checked in this
testing.
Install/uninstall testing - Tested for full, partial, or
upgrade install/uninstall processes on different operating
systems under different hardware, software environment.
Recovery testing - Testing how well a system recovers from
crashes, hardware failures, or other catastrophic problems.
Security testing - Can system be penetrated by any hacking
way. Testing how well the system protects against
unauthorized internal or external access. Checked if
system, database is safe from external attacks.
Compatibility testing - Testing how well software performs
in a particular hardware/software/operating system/network
environment and different combination s of above.
Comparison testing - Comparison of product strengths and
weaknesses with previous versions or other similar products.
Alpha testing - In house virtual user environment can be
created for this type of testing. Testing is done at the
end of development. Still minor design changes may be made
as a result of such testing.
Beta testing - Testing typically done by end-users or
others. Final testing before releasing application for
commercial purpose
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