/*
 * Copyright (c) 2002, 2024, Oracle and/or its affiliates.
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2.0, as published by
 * the Free Software Foundation.
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 * This program is designed to work with certain software that is licensed under separate terms, as designated in a particular file or component or in
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 * Without limiting anything contained in the foregoing, this file, which is part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
 * version 1.0, a copy of which can be found at http://oss.oracle.com/licenses/universal-foss-exception.
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 */

package testsuite.simple;

import static org.junit.jupiter.api.Assertions.assertTrue;

import java.sql.SQLException;

import org.junit.jupiter.api.Test;

import testsuite.BaseTestCase;

public class TransactionTest extends BaseTestCase {

    private static final double DOUBLE_CONST = 25.4312;
    private static final double EPSILON = .0000001;

    @Test
    public void testTransaction() throws SQLException {
        try {
            createTable("trans_test", "(id INT NOT NULL PRIMARY KEY, decdata DOUBLE)", "InnoDB");
            this.conn.setAutoCommit(false);
            this.stmt.executeUpdate("INSERT INTO trans_test (id, decdata) VALUES (1, 1.0)");
            this.conn.rollback();
            this.rs = this.stmt.executeQuery("SELECT * from trans_test");

            boolean hasResults = this.rs.next();
            assertTrue(!hasResults, "Results returned, rollback to empty table failed");
            this.stmt.executeUpdate("INSERT INTO trans_test (id, decdata) VALUES (2, " + DOUBLE_CONST + ")");
            this.conn.commit();
            this.rs = this.stmt.executeQuery("SELECT * from trans_test where id=2");
            hasResults = this.rs.next();
            assertTrue(hasResults, "No rows in table after INSERT");

            double doubleVal = this.rs.getDouble(2);
            double delta = Math.abs(DOUBLE_CONST - doubleVal);
            assertTrue(delta < EPSILON, "Double value returned != " + DOUBLE_CONST);
        } finally {
            this.conn.setAutoCommit(true);
        }
    }

}
