package org.apache.torque.adapter;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import junit.framework.TestCase;
import org.apache.torque.util.Query;
import org.apache.torque.util.UniqueList;
public class DBOracleTest extends TestCase
{
/**
* Tests whether replacing the select columns in limit/offset
* treatment works (double column names must be aliased)
*/
public void testSelectColumnsForLimitOffset()
{
Query query = new Query();
UniqueList input = new UniqueList();
input.add("c1");
input.add("c2");
input.add("c1 a1");
input.add("c1 a2");
input.add("t.c1 a4");
// A list with no duplicates must remain unchanged
query.setSelectClause(new UniqueList(input));
new DBOracle().generateLimits(query, 0, 1);
assertEquals(input, query.getSelectClause());
// double column names must be aliased
input.set(1, "t.c1");
query.setSelectClause(new UniqueList(input));
new DBOracle().generateLimits(query, 0, 1);
UniqueList expected = new UniqueList(input);
expected.set(1, "t.c1 a0");
assertEquals(expected, query.getSelectClause());
// a column name which is the same as an alias name must be replaced
input.set(1, "c2");
input.set(0, "t.a1");
query.setSelectClause(new UniqueList(input));
new DBOracle().generateLimits(query, 0, 1);
expected = new UniqueList(input);
expected.set(0, "t.a1 a0");
assertEquals(query.getSelectClause(), expected);
// triple column names must be made unique
input.set(1, "t2.a1");
query.setSelectClause(new UniqueList(input));
new DBOracle().generateLimits(query, 0, 1);
expected = new UniqueList(input);
expected.set(0, "t.a1 a0");
expected.set(1, "t2.a1 a3");
assertEquals(expected, query.getSelectClause());
}
}