KeyboardOperationMoveUp extends KeyboardOperationMove { @Override SelectionExtension getSelectionExtension() { return SelectionExtension.UP; } KeyboardOperationMoveUp(final GridLayer gridLayer);  KeyboardOperationMoveUp(final GridLayer gridLayer,
                                   final GridLienzoScrollable panel); @Override int getKeyCode();  }
@Test public void testGetSelectionExtension() { final SelectionExtension actual = keyboardOperation.getSelectionExtension(); assertEquals(SelectionExtension.UP, actual); }