- Unit Testing
- Integration Testing
- System Testing
- User Acceptance Testing
unit testing is a procedure used to validate that individual units of source code are working properly. A unit is the smallest testable part of an application.
The goal of unit testing is to isolate each part of the program and show that the individual parts are correct.
It is done by developers
Integration Testing
Integration testing is the phase of software testing in which individual software units are combined and tested as a group.
System Testing
System testing is testing conducted on a complete, integrated system to evaluate the system's compliance with its specified requirements.
It includes
- Functional/ Regression Testing
- Usability Testing
- Compatibility Testing
- Performance Testing
- Security Testing etc
System testing is typically done by Testers
User Acceptance Testing
UAT is a process to obtain confirmation by a client that the system meets mutually agreed-upon requirements.
Users of the system perform these tests, which are derived from Requirement Specification
User Acceptance testing is typically done by End User
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