Unit
Unit 13
13
Software Testing
Software Testing
, Testing methodologies in software
development
Software testing methodologies are the various strategies or so called approaches that can be used
to test an application to make sure it behaves and works as expected. This involves everything from
front to back-end testing including other system testing..
• Functional vs Non-Functional Testing
The main target of utilizing number of testing methodologies in our development process is to ensure that our
software can successfully operate in different environments and across different platforms. Those can usually be
broken down between functional and non-functional testing. Functional testing involves a type of testing towards the
application which is against the requirements of the bussiness. This would include all test types that are designed
to guarantee each part of a piece of software that behaves as expected. Those tests usually include the following:
- User testing
- Integration testing
- System testing
- Acceptance testing
Non functional testing methods incorporate all test types that are focusing on the operational aspect of a software.
Those involve:
- Performance testing
- Security Testing
- Usability Testing
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• Unit Testing
Compatibility Testing
Unit Testing is the very first level of testing and is quite often performed by the developers of the
software. It is the process the ensures single components of a software in terms of code are fully
functional are work as they were designed to. Developers in a test-driven environment will typically write
and run tests prior to the software or feature being passed to the test team. Unit testing will also make
finding errors (debugging) much easier because finding those issues earlier means that they will take less
time to fix than if they were discovered later in the software.