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.
