Software testing is a process of verifying and validating whether the software program/application/product meets the business Requirements that guided its design and development. In Simple words, Software Testing is a process of executing an application or program with the intent of finding the software errors (bugs) and verifying that the product is fit for use.
There are 2 kinds of software testing:
- Black Box Testing: It is the testing technique that ignores the internal mechanism of the system and focuses on the output generated against any input and execution of the system. It is also called functional testing. Black box testing is used for validation.
- White Box Testing: It is the testing technique that takes into consideration the internal mechanism of a system. It is also called structural testing/glass box testing. White box testing is often used for verification.
Types of Software testing:
Different kinds of testing are as follows:
- Unit Testing
- Integration Testing
- Beta Testing
- Functional Testing
- Performance Testing
- System Testing
- Stress Testing
- Regression Testing
Unit testing is a kind of White Box testing. Unit testing is the testing of an individual unit (small programs) or group of related units.
Integration testing may fall under both white box testing and black box testing; in this testing a group of components are combined to produce output. Also, the interaction between software and hardware is tested in integration testing if their components have any relation.
Beta testing is a kind of Black Box testing. This testing is done by end users, a team outside development, or public releasing full pre-version of the product which is known as beta version. The aim of beta testing is to cover unexpected errors.
Functional testing is a kind of Black Box testing. This testing is performed to ensure that the specified functionality which is required in the system requirements works.
Performance testing is a kind of Black Box testing. This testing is performed to assess the speed and effectiveness of the system and to make sure it is generating results within a specified time as in performance requirements.
System testing is a kind of Black Box testing. This testing is performed to ensure that by putting the software in different environments (e.g., Operating Systems) it still works. System testing is done with full system implementation and environment.
Stress testing is a kind of Black Box testing. This testing is performed to evaluate how system behaves under unfavorable conditions. Testing is conducted at beyond limits of the specifications.
Regression testing is a kind of Black Box testing. This testing is done after the changing of a component, system or group of related units to ensure that the change is working correctly, not damaging or imposing other modules to generate unexpected results.
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