Types of Testing Comes Under Testing Levels

1. Unit Testing

• Unit Testing is primarily carried out by the developers themselves
• Deals functional correctness and the completeness of individual program units
• White box testing methods are employed

2. Integration Testing

• Integration Testing: Deals with testing when several program units are integrated
• Regression testing: Change of behavior due to modification or addition is called ‘Regression’. Used to bring changes from worst to least
• Incremental Integration Testing: Checks out for bugs which encounter when a module has been integrated to the existing
• Smoke Testing: It is the battery of test which checks the basic functionality of program. If fails then the program is not sent for further testing

3. System Testing

• System Testing : Deals with testing the whole program system for its intended purpose
• Recovery testing: System is forced to fail and is checked out how well the system recovers the failure
• Security Testing: Checks the capability of system to defend itself from hostile attack on programs and data
• Load & Stress Testing: The system is tested for max load and extreme stress points are figured out
• Performance Testing: Used to determine the processing speed
• Installation Testing: Installation & uninstallation is checked out in the target platform

4. Acceptance Testing

• UAT: ensures that the project satisfies the customer requirements
• Alpha Testing : It is the test done by the client at the developer’s site
• Beta Testing : This is the test done by the end-users at the client’s site
• Long Term Testing : Checks out for faults occurrence in a long term usage of the product
• Compatibility Testing : Determines how well the product is substantial to product transition