import com.xxx.yyy.zzz.OracleBlockUtils;
import static junit.framework.Assert.assertEquals;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

/**
 * OracleBlockUtilsTest
 * Author: me
 * Date: Sep 17, 2008
 * Time: 3:06:14 AM
 */
public class OracleBlockUtilsTest {
    private File testFile;
    @Before
    public void setup() {
        testFile = new File("tool/src/test/data/g.log");
    }
    @After
    public void teardown() {

    }
    @Test
    public void basic() throws IOException {
        FileInputStream fis = new FileInputStream(testFile);
        fis.skip(512);
        byte[] buffer = new byte[512];
        int bytesRead = fis.read(buffer);
        System.out.println("checksum: " + OracleBlockUtils.readBlockChecksum(buffer));
        assertEquals(bytesRead, buffer.length);
        int checksum = OracleBlockUtils.readBlockChecksum(buffer);
        assertEquals(checksum, OracleBlockUtils.computeChecksum(buffer));
        assertEquals(checksum, OracleBlockUtils.readBlockChecksum(buffer));
        fis.close();
    }
}