Setup method arranges specific logic for every test method or performs necessary preparations that are appropriate to a specific test method within a test suite or test class.

The Setup method will be called every time before the execution of every test. 

The Setup method will be called once, before the execution of all test cases within a test class. 

Setup method arranges common mocking logic for all test methods or performs necessary preparations that are shared among multiple test methods within a test suite or test class.