Test invocation: how to do set up common to all test suites

Question

Is there a way to know in a JUnit 4 test Class, if the Class was initiated by a Test-Suite ? I have global things that I want to run before all tests (regarding in-memory DB

Answer 1

You could place some @BeforeClass code in each test suite, which delegates to an auxiliary class that does the common set up. The auxiliary class could have a static boolean that records whether the set up has already been done. If it has already been done, the auxiliary class would do nothing.