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/*-------------------------------------------------------------------------
*
* Copyright (c) 2004-2008, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgjdbc/org/postgresql/test/jdbc3/Jdbc3SavepointTest.java,v 1.8 2008/01/08 06:56:31 jurka Exp $
*
*-------------------------------------------------------------------------
*/
package org.postgresql.test.jdbc3;
import java.sql.*;
import junit.framework.TestCase;
import org.postgresql.test.TestUtil;
public class Jdbc3SavepointTest extends TestCase {
private Connection _conn;
public Jdbc3SavepointTest(String name) {
super(name);
}
protected void setUp() throws Exception {
_conn = TestUtil.openDB();
TestUtil.createTable(_conn, "savepointtable", "id int primary key");
_conn.setAutoCommit(false);
}
protected void tearDown() throws SQLException {
_conn.setAutoCommit(true);
TestUtil.dropTable(_conn, "savepointtable");
TestUtil.closeDB(_conn);
}
private boolean hasSavepoints() throws SQLException {
return TestUtil.haveMinimumServerVersion(_conn, "8.0");
}
private void addRow(int id) throws SQLException {
PreparedStatement pstmt = _conn.prepareStatement("INSERT INTO savepointtable VALUES (?)");
pstmt.setInt(1, id);
pstmt.executeUpdate();
pstmt.close();
}
private int countRows() throws SQLException {
Statement stmt = _conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT COUNT(*) FROM savepointtable");
rs.next();
int count = rs.getInt(1);
rs.close();
return count;
}
public void testAutoCommitFails() throws SQLException {
if (!hasSavepoints())
return ;
_conn.setAutoCommit(true);
try
{
_conn.setSavepoint();
fail("Can't create a savepoint with autocommit.");
}
catch (SQLException sqle)
{
}
try
{
_conn.setSavepoint("spname");
fail("Can't create a savepoint with autocommit.");
}
catch (SQLException sqle)
{
}
}
public void testCantMixSavepointTypes() throws SQLException {
if (!hasSavepoints())
return ;
Savepoint namedSavepoint = _conn.setSavepoint("named");
Savepoint unNamedSavepoint = _conn.setSavepoint();
try
{
namedSavepoint.getSavepointId();
fail("Can't get id from named savepoint.");
}
catch (SQLException sqle)
{
}
try
{
unNamedSavepoint.getSavepointName();
fail("Can't get name from unnamed savepoint.");
}
catch (SQLException sqle)
{
}
}
public void testRollingBackToSavepoints() throws SQLException {
if (!hasSavepoints())
return ;
Savepoint empty = _conn.setSavepoint();
addRow(1);
Savepoint onerow = _conn.setSavepoint("onerow");
addRow(2);
assertEquals(2, countRows());
_conn.rollback(onerow);
assertEquals(1, countRows());
_conn.rollback(empty);
assertEquals(0, countRows());
}
public void testGlobalRollbackWorks() throws SQLException {
if (!hasSavepoints())
return ;
_conn.setSavepoint();
addRow(1);
_conn.setSavepoint("onerow");
addRow(2);
assertEquals(2, countRows());
_conn.rollback();
assertEquals(0, countRows());
}
public void testContinueAfterError() throws SQLException {
if (!hasSavepoints())
return ;
addRow(1);
Savepoint savepoint = _conn.setSavepoint();
try
{
addRow(1);
fail("Should have thrown duplicate key exception");
}
catch (SQLException sqle)
{
_conn.rollback(savepoint);
}
assertEquals(1, countRows());
addRow(2);
assertEquals(2, countRows());
}
public void testReleaseSavepoint() throws SQLException {
if (!hasSavepoints())
return ;
Savepoint savepoint = _conn.setSavepoint("mysavepoint");
_conn.releaseSavepoint(savepoint);
try
{
savepoint.getSavepointName();
fail("Can't use savepoint after release.");
}
catch (SQLException sqle)
{
}
savepoint = _conn.setSavepoint();
_conn.releaseSavepoint(savepoint);
try
{
savepoint.getSavepointId();
fail("Can't use savepoint after release.");
}
catch (SQLException sqle)
{
}
}
public void testComplicatedSavepointName() throws SQLException {
if (!hasSavepoints())
return ;
Savepoint savepoint = _conn.setSavepoint("name with spaces + \"quotes\"");
_conn.rollback(savepoint);
_conn.releaseSavepoint(savepoint);
}
public void testRollingBackToInvalidSavepointFails() throws SQLException {
if (!hasSavepoints())
return ;
Savepoint sp1 = _conn.setSavepoint();
Savepoint sp2 = _conn.setSavepoint();
_conn.rollback(sp1);
try
{
_conn.rollback(sp2);
fail("Can't rollback to a savepoint that's invalid.");
}
catch (SQLException sqle)
{
}
}
public void testRollbackMultipleTimes() throws SQLException {
if (!hasSavepoints())
return ;
addRow(1);
Savepoint savepoint = _conn.setSavepoint();
addRow(2);
_conn.rollback(savepoint);
assertEquals(1, countRows());
_conn.rollback(savepoint);
assertEquals(1, countRows());
addRow(2);
_conn.rollback(savepoint);
assertEquals(1, countRows());
_conn.releaseSavepoint(savepoint);
assertEquals(1, countRows());
}
}
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