I expected adding @Execution(ExecutionMode.SAME_THREAD) to work but it doesn’t. Other tests run in parallel. Is there some annotation to synchronize test threads and make them actually wait?

As an example I would expect all other tests hold until AaInitialStateITCase is finished. But it doesn’t it runs dummies in parallel.

So basically I want some tests to be executed alone, especially initialization.

This is what actually happens with forkCount = 4:

1. Running pl.mol.molnet.initsaas.Dummy2ITCase
2. Running pl.mol.molnet.initsaas.Dummy1ITCase
3. Running pl.mol.molnet.initsaas.AaInitialStateITCase
4. Running pl.mol.molnet.initsaas.Dummy3ITCase
5. Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 27.68 s — in pl.mol.molnet.initsaas.Dummy1ITCase
6. Running pl.mol.molnet.initsaas.Dummy4ITCase
7. Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.008 s — in pl.mol.molnet.initsaas.Dummy4ITCase

Example ITCase

/**
 * Init main database objects.
 * @author Maciej Nux Jaros
 */
@ExtendWith(SpringExtension.class)
@ContextConfiguration({"/testContextPg.xml"})
@TestInstance(TestInstance.Lifecycle.PER_CLASS)
@Execution(ExecutionMode.SAME_THREAD)   // cannot be run in paralel
public class AaInitialStateITCase extends TestDatabaseCleaner {
    @BeforeAll
    public void mockTenantService() throws SaasException {
        initAll();
    }

    @Test
    public void testInit_shouldInitTenants() throws Exception {
        assertNotNull(tenant1);
        assertNotNull(tenant2);
    }
}

/**
 * Artificial test exhausting threads.
 * @author Maciej Nux Jaros
 */
@ExtendWith(SpringExtension.class)
@ContextConfiguration({"/testContextPg.xml"})
@TestInstance(TestInstance.Lifecycle.PER_CLASS)
public class Dummy1ITCase extends TestDatabaseCleaner {
    @Test
    public void test_forthreads() throws Exception {
        assertEquals(2, 1+1);
    }
}