TestLargeData.java

package org.apache.jdbm;

import java.io.IOException;
import java.util.Arrays;

public class TestLargeData extends TestCaseWithTestFile {

    public void testLargeData() throws IOException {

        DBAbstract db = new DBStore(newTestFile(), false, false,false);

        byte[] data = UtilTT.makeRecord(1000000, (byte) 12);
        final long id = db.insert(data);
        data = (byte[]) db.fetch(id);
        UtilTT.checkRecord(data, 1000000, (byte) 12);
        db.commit();

        data = UtilTT.makeRecord(2000000, (byte) 13);
        db.update(id, data);
        db.commit();
        data = (byte[]) db.fetch(id);
        UtilTT.checkRecord(data, 2000000, (byte) 13);
        db.commit();

        data = UtilTT.makeRecord(1500000, (byte) 14);
        db.update(id, data);
        data = (byte[]) db.fetch(id);
        UtilTT.checkRecord(data, 1500000, (byte) 14);
        db.commit();

        data = UtilTT.makeRecord(2500000, (byte) 15);
        db.update(id, data);
        db.rollback();
        data = (byte[]) db.fetch(id);
        UtilTT.checkRecord(data, 1500000, (byte) 14);
        db.commit();

        data = UtilTT.makeRecord(1, (byte) 20);
        db.update(id, data);
        data = (byte[]) db.fetch(id);
        UtilTT.checkRecord(data, 1, (byte) 20);
        db.commit();
    }
    
    
    public void testAllSizes() throws IOException {
        //use in memory store to make it faster
        DBStore db = (DBStore) DBMaker.openFile(newTestFile()).disableCache().disableTransactions().make();
        for(int i = 1;i<RecordHeader.MAX_RECORD_SIZE-100;i+=111111){
            //System.out.println(i);
            byte[] rec = UtilTT.makeRecord(i, (byte) 11);
            long recid = db.insert(rec);
            byte[] rec2 = db.fetch(recid);
            assertTrue("error at size: "+i, Arrays.equals(rec,rec2));
            db.delete(recid);
        }
    }
    

}