@Test
void filter() {

    PrivateKeyFilter filter = new PrivateKeyFilter();
    Bundle filteredBundle = new Bundle();
    filteredBundle.addEntity(createPolicy("my-policy", "1", "", "", null, ""));
    Bundle bundle = FilterTestUtils.getBundle();
    bundle.setDependencyMap(
            ImmutableMap.of(
                    new Dependency("1", Policy.class, "my-policy", EntityTypes.POLICY_TYPE), Arrays.asList(new Dependency("2", PrivateKey.class, "SSL", EntityTypes.PRIVATE_KEY_TYPE), new Dependency("3", PrivateKey.class, "pk3", EntityTypes.PRIVATE_KEY_TYPE)),
                    new Dependency("2", Policy.class, "my-policy2", EntityTypes.POLICY_TYPE), Collections.singletonList(new Dependency("4", PrivateKey.class, "pk4", EntityTypes.PRIVATE_KEY_TYPE))));
    bundle.addEntity(new PrivateKey.Builder().setAlias("pk1").setId("1").build());
    bundle.addEntity(new PrivateKey.Builder().setAlias("SSL").setId("2").build());
    bundle.addEntity(new PrivateKey.Builder().setAlias("pk3").setId("3").build());
    bundle.addEntity(new PrivateKey.Builder().setAlias("pk4").setId("4").build());
    bundle.addEntity(new PrivateKey.Builder().setAlias("ssl").setId("5").build());
    FilterConfiguration filterConfiguration = new FilterConfiguration();
    List<PrivateKey> filteredEntities = filter.filter("/my/folder/path", filterConfiguration, bundle, filteredBundle);
    assertEquals(1, filteredEntities.size());
    assertTrue(filteredEntities.stream().anyMatch(c -> "pk3".equals(c.getName())));
    filterConfiguration.getEntityFilters().put(filter.getFilterableEntityName(), new HashSet<>());
    filterConfiguration.getEntityFilters().get(filter.getFilterableEntityName()).add("ssl");
    filterConfiguration.getEntityFilters().get(filter.getFilterableEntityName()).add("pk1");
    filteredEntities = filter.filter("/my/folder/path", filterConfiguration, bundle, filteredBundle);
    assertEquals(3, filteredEntities.size());
    assertTrue(filteredEntities.stream().anyMatch(c -> "pk3".equals(c.getName())));
    assertTrue(filteredEntities.stream().anyMatch(c -> "pk1".equals(c.getName())));
    assertTrue(filteredEntities.stream().anyMatch(c -> "ssl".equals(c.getName())));
    filterConfiguration.getEntityFilters().get(filter.getFilterableEntityName()).add("non-existing-entity");
    EntityFilterException entityFilterException = assertThrows(EntityFilterException.class, () -> filter.filter("/my/folder/path", filterConfiguration, bundle, filteredBundle));
    assertTrue(entityFilterException.getMessage().contains("non-existing-entity"));
}