### Question:
MySQLUndoUpdateExecutor extends AbstractUndoExecutor { @Override protected TableRecords getUndoRows() { return sqlUndoLog.getBeforeImage(); } MySQLUndoUpdateExecutor(SQLUndoLog sqlUndoLog);   }### Answer:
@Test public void getUndoRows() { Assertions.assertEquals(executor.getUndoRows(), executor.getSqlUndoLog().getBeforeImage()); }