/*
* Copyright 2004-2011 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.test.db;
import java.io.File;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import org.h2.test.TestBase;
/**
* Tests if disk space is reused after deleting many rows.
*/
public class TestSpaceReuse extends TestBase {
/**
* Run just this test.
*
* @param a ignored
*/
public static void main(String... a) throws Exception {
TestBase.createCaller().init().test();
}
public void test() throws SQLException {
if (config.memory) {
return;
}
deleteDb("spaceReuse");
long first = 0, now = 0;
for (int i = 0; i < 10; i++) {
Connection conn = getConnection("spaceReuse");
Statement stat = conn.createStatement();
stat.execute("create table if not exists t(i int)");
stat.execute("insert into t select x from system_range(1, 500)");
conn.close();
conn = getConnection("spaceReuse");
conn.createStatement().execute("delete from t");
conn.close();
now = new File(getBaseDir() + "/spaceReuse.data.db").length();
if (first == 0) {
first = now;
}
}
if (now > first) {
fail("first: " + first + " now: " + now);
}
deleteDb("spaceReuse");
}
}