natTable.getConfigRegistry().registerConfigAttribute(
EditConfigAttributes.CELL_EDITABLE_RULE,
IEditableRule.NEVER_EDITABLE, DisplayMode.NORMAL,
AlternatingRowConfigLabelAccumulator.ODD_ROW_CONFIG_TYPE);
natTable.doCommand(new EditCellCommand(natTable, natTable
.getConfigRegistry(), natTable.getCellByPosition(4,
COLUMN_HEADER_ROW_COUNT + 2)));
assertNotNull(natTable.getActiveCellEditor());
assertNotNull(ActiveCellEditorRegistry.getActiveCellEditor());
natTable.doCommand(new EditCellCommand(natTable, natTable
.getConfigRegistry(), natTable.getCellByPosition(4,
COLUMN_HEADER_ROW_COUNT + 3)));
assertNotNull(natTable.getActiveCellEditor());
assertFalse(natTable.getActiveCellEditor().isClosed());
assertNotNull(ActiveCellEditorRegistry.getActiveCellEditor());