LogicalRowIdManagerTest.java

/*******************************************************************************
 * Copyright 2010 Cees De Groot, Alex Boisvert, Jan Kotek
 *
 * Licensed 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.
 ******************************************************************************/

package org.apache.jdbm;

/**
 * This class contains all Unit tests for {@link LogicalRowIdManager}.
 */
public class LogicalRowIdManagerTest extends TestCaseWithTestFile {


    /**
     * Test constructor
     */
    public void testCtor() throws Exception {
        PageFile f = newRecordFile();
        PageManager pm = new PageManager(f);
        PageFile free = newRecordFile();
        PageManager pmfree = new PageManager(free);

        LogicalRowIdManager logMgr = new LogicalRowIdManager(f, pm);

        f.forceClose();
    }

    /**
     * Test basics
     */
    public void testBasics() throws Exception {
        PageFile f = newRecordFile();
        PageManager pm = new PageManager(f);
        PageFile free = newRecordFile();
        PageManager pmfree = new PageManager(free);
        LogicalRowIdManager logMgr = new LogicalRowIdManager(f, pm);
        long physid = 20<< Storage.PAGE_SIZE_SHIFT + 234;

        long logid = logMgr.insert(physid);
        assertEquals("check one", physid, logMgr.fetch(logid));

        physid = 10 << Storage.PAGE_SIZE_SHIFT + 567;
        logMgr.update(logid, physid);
        assertEquals("check two", physid, logMgr.fetch(logid));

        logMgr.delete(logid);

        f.forceClose();
    }


    public void testFreeBasics() throws Exception {
        PageFile f = newRecordFile();
        PageManager pm = new PageManager(f);
        LogicalRowIdManager freeMgr = new LogicalRowIdManager(
                f, pm);

        // allocate a rowid - should fail on an empty file
        long loc = freeMgr.getFreeSlot();
        assertTrue("loc is not null?", loc == 0);

        pm.close();
        f.close();
    }

}