Start automation tests by initiating different browsers in different modes. You can run your tests locally, remotely, or in a grid using multiple browsers/platforms simultaneously. This library provides a utility to manage WebDriver instances. It helps to create, reuse and dismiss WebDriver instances.
Factory Pattern is one of the creation Patterns. It is mostly used when we need to create an object from one of several possible classes that share a common super class / implements an interface. It creates objects without exposing the instantiation logic to the user. We, as the user, refer to the newly created object through a common interface.
we can address this using a Factory Pattern. Test classes, as the users, should not really care how the drivers are actually created. What it needs is just a WebDriver instance to execute the given test case. So we come up with our own abstract class – DriverManager – which test classes could use to get a driver instance from it and use them in their tests.