@Test
public void testGetExtensionBundleVersionsWithEmptyFilterParams() {

    final Set<String> bucketIds = new HashSet<>();
    bucketIds.add("1");
    bucketIds.add("2");
    bucketIds.add("3");
    final List<BundleVersionEntity> versionEntities = metadataService.getBundleVersions(
            bucketIds, BundleVersionFilterParams.empty());
    assertEquals(3, versionEntities.size());
}