Clojure - tests with components strategy

I am implementing an app using Stuart Sierra component. As he states in the README :

Having a coherent way to set up and tear down all the state associated with an application enables rapid development cycles without restarting the JVM. It can also make unit tests faster and more independent, since the cost of creating and starting a system is low enough that every test can create a new instance of the system.

What would be the preferred strategy here ? Something similar to JUnit oneTimeSetUp / oneTimeTearDown , or really between each test (similar to setUp / tearDown) ?

And if between each test, is there a simple way to start/stop a system for all tests (before and after) without repeating the code every time ?

Note : I am talking about unit-testing here.