Which can cause the actions of the setUp$()$ method to not be reflected at the start of each test class:

Which can cause the actions of the setUp$()$ method to not be reflected at the start of each test class:

none$-$ the actions of the setUp$()$ method happen only once

if a tearDown$()$ method is used

initialized variables were changed in one of the test mehods

the variables initialized in setUp were also declared locally within setUp