import org.junit.Test;

/**
 * Abstract base class for testing directed {@link Graph} implementations defined in this package.
 */
@NullUnmarked
public abstract class AbstractStandardDirectedGraphTest extends AbstractGraphTest {

  @Override
  @Test
  public void nodes_checkReturnedSetMutability() {
    assume().that(graphIsMutable()).isTrue();

    Set<Integer> nodes = graph.nodes();

  protected void setUp() {
    future = TestedFuture.create();
    delegate = newDelegate();
  }

  public void testPending() {
    assertPending(future);
  }

  public void testSuccessful() throws Exception {
    assertThat(future.set(1)).isTrue();
    assertSuccessful(future, 1);
  }

  public void testFailed() throws Exception {
    Exception cause = new Exception();

    }

    public void test_execute_withEmptyIndexName() {
        // Configure empty index name
        documentUpdateIndex = "";
        fessConfig = new TestFessConfig() {
            @Override
            public String getIndexFieldExpires() {
                return expiresFieldName;
            }

            @Override
            public String getIndexDocumentUpdateIndex() {

            public String getClassifier() {
                return classifier;
            }

            @Override
            public String getExtension() {
                return extension;
            }

            @Override
            public String getType() {
                return type;
            }

            @Override
            public String getCoordinatesString() {

    public ColumnInfo columnName() {
        return _columnName;
    }

    public ColumnInfo columnPermissions() {
        return _columnPermissions;
    }

    public ColumnInfo columnSortOrder() {
        return _columnSortOrder;
    }

    public ColumnInfo columnUpdatedBy() {
        return _columnUpdatedBy;
    }

    public ColumnInfo columnUpdatedTime() {
        return _columnUpdatedTime;

    @Override
    public String getProjectName() {
        return null;
    }

    @Override
    public String getProjectPrefix() {
        return null;
    }

    @Override
    public String getGenerationGapBasePrefix() {
        return null;
    }

    @Override
    public DBDef getCurrentDBDef() {
        return null;
    }

    @Override
    public String getProjectName() {
        return null;
    }

    @Override
    public String getProjectPrefix() {
        return null;
    }

    @Override
    public String getGenerationGapBasePrefix() {
        return null;
    }

    @Override
    public DBDef getCurrentDBDef() {
        return null;
    }

    @Override
    public String getProjectName() {
        return null;
    }

    @Override
    public String getProjectPrefix() {
        return null;
    }

    @Override
    public String getGenerationGapBasePrefix() {
        return null;
    }

    @Override
    public DBDef getCurrentDBDef() {
        return null;
    }

     * Test component class for testing factory operations
     */
    public static class TestComponent {
        private static AtomicInteger instanceCounter = new AtomicInteger(0);
        private final int id;
        private boolean destroyed = false;

        public TestComponent() {
            this.id = instanceCounter.incrementAndGet();
        }

        public int getId() {
            return id;
        }

        public void columnCreatedBy() {
            doColumn("createdBy");
        }

        public void columnCreatedTime() {
            doColumn("createdTime");
        }

        public void columnMaxSize() {
            doColumn("maxSize");
        }

        public void columnQuery() {
            doColumn("query");
        }

        public void columnTerm() {
            doColumn("term");