What are the different levels of testing

The four levels of software testing goes from unit testing towards integration testing on the following list:This is a guide to manual testing types.Unit testing is performed at the unit or component or module level independently by the module developer.Unit/component testing, integration testing, system testing, and acceptance testing.Test cases are designed to test the program logic, functionality, interfaces etc.

In general, mainly four levels of testing in software testing:These types of tests are more expensive to run as they require multiple parts of the application.The different levels of testing are:unit testing,,integration testing,system testing.There are many different testing levels that are used or help to check actions and performance for software testing.There are generally four recognized levels of testing:

For example, for unit testing test object code, classes, component.The unit testing is done to test the individual module of the software.The code and a guide to it.Levels of testing include different methodologies that can be used while conducting software testing.In software engineering, the software testers perform test operations in these four test levels before launching the final product.