sharing junit tests between different repository types

BaseIntegrationTest.java

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.core.Is.is;

/**
 * Created by rsvihla on 12/2/2015.
 */
public abstract class BaseIntegrationTest {
  protected abstract DataRepository getDataRepository();
  private MyService service;
  
  @Before
  public void before(){
    service = new MyService();
    service.setRepository(getDataRepository());
  }
  
  @Test
  public void testGetInts(){
    assertThat(service.getAllInts().size(), is(0));
  }

  @Test
  public void testSaveInts(){
    service.saveInt(1);
    assertThat(getDataRepository().getAllInts().get(0), is(1));
  }

}

BaseTestCase.java

import org.junit.Test;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.core.Is.is;

/**
 * Created by rsvihla on 12/2/2015.
 */
public abstract class BaseTestCase {
  protected abstract DataRepository getDataRepository();

  @Test
  public void testGetInts(){
    assertThat(getDataRepository().getAllInts().size(), is(0));
  }

  @Test
  public void testSaveInts(){
    getDataRepository().saveInt(1);
    assertThat(getDataRepository().getAllInts().get(0), is(1));
  }

}

CassandraIntegrationTest.java

class CassandraIntegrationTest extends BaseIntegrationTest {
  
   @Override
  protected DataRepository getDataRepository() {
    return new CassandraDataRepository();
  }
}

CassandraTest.java

public class CassandraTest extends BaseTestCase{
  @Override
  protected DataRepository getDataRepository() {
    return new CassandraDataRepository();
  }
}

OracleIntegrationTest.java

class OracleIntegrationTest extends BaseIntegrationTest {
  
   @Override
  protected DataRepository getDataRepository() {
    return new OracleDataRepository();
  }
}

OracleTest.java

public class OracleTest extends BaseTestCase{
  @Override
  protected DataRepository getDataRepository() {
    return new OracleDataRepository();
  }
}