scoped_ptr<HarnessHelper> harnessHelper( newHarnessHelper() );
scoped_ptr<SortedDataInterface> sorted( harnessHelper->newSortedDataInterface() );

scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() );
scoped_ptr<SortedDataInterface::Cursor> cursor( sorted->newCursor( opCtx.get(), 1 ) );

cursor->locate( minKey, minDiskLoc );

vector<const BSONElement*> keyEnd( 1 );
vector<bool> keyEndInclusive( 1 );

cursor->advanceTo( key1, 1, true, keyEnd, keyEndInclusive );