This is the final stage in testing, which determines whether the system is ready for the final release or not. The acceptance test is generally carried out by end users to determine whether the application meets the requirements, and has covered all the necessary functionalities to give the final acceptance. It gives a feel of the final application in the production environment.

In this chapter, we will carry out unit testing, integration testing, and system testing in three phases. However, before moving ahead, let's take an overview of the testing tools available in the market.