storagetest.java

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/*
 * $URL: StorageTest.java $ 
 * $Rev: 147 $ 
 * $Date: 2005-07-08 19:43:40 +0400 (Fri, 08 Jul 2005) $
 *
 * Copyright 2005 Netup, Inc. All rights reserved.
 * URL:    http://www.netup.biz
 * e-mail: [e-mail]
 */

package org.garret.perst;

import static org.garret.perst.Storage.INFINITE_PAGE_POOL;
import junit.framework.*;

import java.util.*;
import java.io.File;

/**
 * These tests verifies an implementation of the <code>Storage</code> interface. <br />
 * The implementation is created by the following way :
 * <pre>
 *   storage = org.garret.perst.StorageFactory.getInstance().createStorage()
 * </pre>
 * <p>
 * In test are used simple <CODE>Persistent</CODE> class <CODE>Stored</CODE>:
 * <pre>
 *   class Stored extends Persistent {
 *       public String name;
 *   }
 * </pre>
 */
public class StorageTest extends TestCase {
    Storage storage;

    public StorageTest(String testName) {
        super(testName);
    }

    public static junit.framework.Test suite()
    {
        junit.framework.TestSuite suite =
                new junit.framework.TestSuite(StorageTest.class);

        return suite;
    }

    protected void setUp() throws java.lang.Exception {
        storage = StorageFactory.getInstance().createStorage();
    }

    protected void tearDown() throws java.lang.Exception {
        if(storage.isOpened()){
            storage.close();
        }
        try {
            (new File("StorageTest.dbs")).delete();
        } catch (Exception e) {
        }
    }

    /**
     * <B>Goal:</B> To verify the functionality of the <CODE>open(...)</CODE> method.
     * <P>
     * <B>Conditions:</B>
     * <ul>
     * <li>The <code>open(...)</code> method is invoked.</li>
     * </ul>
     * <P>
     * <B>Result:</B>
     * <ul>
     * <li>no exceptions are thrown.</li>
     * <li><code>isOpened()</code> returned <i>true</i>.</li>
     * </ul>
     */
    public void testOpen(){
        storage.open(new NullFile(), INFINITE_PAGE_POOL);
        assertTrue(storage.isOpened());
    }

    /**
     * <B>Goal:</B> To verify the functionality of the <CODE>createQuery()</CODE> method.
     * <P>
     * <B>Conditions:</B>
     * <ul>
     * <li><code>createQuery()</code> are invoked.</li>
     * </ul>
     * <P>
     * <B>Result:</B>
     * <ul>
     * <li>no exceptions are thrown.</li>
     * <li><code>createQuery()</code> returned not-<i>null</i> object.</li>
     * </ul>
     */
    public void testCreateQuery(){
        storage.open(new NullFile(), INFINITE_PAGE_POOL);
        assertTrue(storage.isOpened());
        Query q = storage.createQuery();
        assertNotNull(q);
    }

    /**
     * <B>Goal:</B> To verify the functionality of the <CODE>createIndex()</CODE> method.
     * <P>
     * <B>Conditions:</B>
     * <ul>
     * <li><code>createIndex()</code> are invoked.</li>
     * </ul>
     * <P>
     * <B>Result:</B>
     * <ul>
     * <li>no exceptions are thrown.</li>
     * <li><code>createIndex()</code> returned not-<i>null</i> object.</li>
     * </ul>
     */
    public void testCreateIndex() {
        storage.open(new NullFile(), INFINITE_PAGE_POOL);
        assertTrue(storage.isOpened());
        Index<Root> idx = storage.createIndex(Root.class, false);
        assertNotNull(idx);
    }

    /**
     * <B>Goal:</B> To verify the functionality of the <CODE>createFieldIndex()</CODE> method.
     * <P>
     * <B>Conditions:</B>
     * <ul>
     * <li><code>createFieldIndex()</code> are invoked.</li>
     * </ul>
     * <P>
     * <B>Result:</B>
     * <ul>
     * <li>no exceptions are thrown.</li>
     * <li><code>createFieldIndex()</code> returned not-<i>null</i> object.</li>
     * </ul>
     */
    public void testCreateFieldIndex() {
        storage.open(new NullFile(), INFINITE_PAGE_POOL);
        assertTrue(storage.isOpened());
        FieldIndex<Root> idx = storage.createFieldIndex(Root.class, "i", false);
        assertNotNull(idx);
    }

    /**
     * <B>Goal:</B> To verify the functionality of the <CODE>createLink()</CODE> method.
     * <P>
     * <B>Conditions:</B>
     * <ul>
     * <li><code>createLink()</code> are invoked.</li>
     * </ul>
     * <P>
     * <B>Result:</B>
     * <ul>
     * <li>no exceptions are thrown.</li>
     * <li><code>createLink()</code> returned not-<i>null</i> object.</li>
     * </ul>
     */
    public void testCreateLink() {
        storage.open(new NullFile(), INFINITE_PAGE_POOL);
        assertTrue(storage.isOpened());
        Link<Root> l = storage.createLink();
        assertNotNull(l);
    }

    /**
     * <B>Goal:</B> To verify the functionality of the <CODE>createBlob()</CODE> method.
     * <P>
     * <B>Conditions:</B>
     * <ul>
     * <li><code>createBlob()</code> are invoked.</li>
     * </ul>
     * <P>
     * <B>Result:</B>
     * <ul>
     * <li>no exceptions are thrown.</li>
     * <li><code>createBlob()</code> returned not-<i>null</i> object.</li>
     * </ul>
     */
    public void testCreateBlob() {
        storage.open(new NullFile(), INFINITE_PAGE_POOL);
        assertTrue(storage.isOpened());
        Blob b = storage.createBlob();
        assertNotNull(b);
    }

    /**
     * <B>Goal:</B> To verify the functionality of the <CODE>createSet()</CODE> method.
     * <P>
     * <B>Conditions:</B>
     * <ul>
     * <li><code>createSet()</code> are invoked.</li>
     * </ul>
     * <P>
     * <B>Result:</B>
     * <ul>
     * <li>no exceptions are thrown.</li>
     * <li><code>createSet()</code> returned not-<i>null</i> object.</li>
     * </ul>
     */
    public void testCreateSet(){
        storage.open(new NullFile(), INFINITE_PAGE_POOL);
        assertTrue(storage.isOpened());
        IPersistentSet ps = storage.createSet();
        assertNotNull(ps);
    }

    /**
     * <B>Goal:</B> To verify the functionality of the <CODE>getRoot()</CODE> method.
     * <P>
     * <B>Conditions:</B>
     * <ul>
     * <li>The <code>getRoot()</code> method is invoked.</li>
     * </ul>
     * <P>
     * <B>Result:</B>
     * <ul>
     * <li>no exceptions are thrown.</li>
     * <li><code>getRoot()</code> returned <i>null</i>.</li>
     * </ul>
     */
    public void testGetRoot(){
        storage.open(new NullFile(), INFINITE_PAGE_POOL);
        assertNull(storage.getRoot());
    }

    /**
     * <B>Goal:</B> To verify the functionality of the <CODE>setRoot(...)</CODE> and
     * <CODE>getRoot()</CODE> methods.
     * <P>
     * <B>Conditions:</B>
     * <ul>
     * <li>The <code>setRoot(root)</code> method is invoked.</li>
     * <li>The <code>getRoot()</code> method is invoked.</li>
     * </ul>
     * <P>
     * <B>Result:</B>
     * <ul>
     * <li>no exceptions are thrown.</li>
     * <li><code>getRoot()</code> returned <i>root</i>.</li>
     * </ul>
     */
    public void testSetRoot(){
        storage.open(new NullFile(), INFINITE_PAGE_POOL);
        Root root = new Root( (IPersistentSet)storage.createSet() );
        storage.setRoot(root);
        assertEquals(storage.getRoot(), root);
    }

    /**
     * <B>Goal:</B> To verify the functionality of the <CODE>commit()</CODE> method.
     * <P>
     * <B>Conditions:</B>
     * <ul>
     * <li><code>root</code> object implements the <code>Persistent</code>
     * interface.</li>
     * <li>The <code>setRoot(root)</code> method is invoked.</li>
     * <li>The <code>commit()</code> method is invoked.</li>
     * <li>The <code>getRoot()</code> method is invoked.</li>
     * </ul>
     * <P>
     * <B>Result:</B>
     * <ul>
     * <li>no exceptions are thrown.</li>
     * <li><code>getRoot()</code> returned <i>root</i>.</li>
     * </ul>
     */
    public void testCommit(){
        storage.open(new NullFile(), INFINITE_PAGE_POOL);
        Root root = new Root( (IPersistentSet) storage.createSet() );
        root.i = 64;
        storage.setRoot(root);
        storage.commit();
        root = (Root)storage.getRoot();
        assertEquals(root.i, 64);
    }

    /**
     * <B>Goal:</B> To verify the transaction functionality.
     * <P>
     * <B>Conditions:</B>
     * <ul>
     * <li>The <code>setRoot(root)</code> method is invoked.</li>
     * <li>The <code>commit()</code> method is invoked.</li>
     * <li>The <code>rollback()</code> method is invoked.</li>
     * <li>The <code>getRoot()</code> method is invoked.</li>
     * </ul>
     * <P>
     * <B>Result:</B>
     * <ul>
     * <li>no exceptions are thrown.</li>
     * <li><code>getRoot()</code> returned <i>root</i>.</li>
     * </ul>
     */
    public void testTransaction00(){
        storage.open(new NullFile(), INFINITE_PAGE_POOL);
        Root root = new Root( (IPersistentSet) storage.createSet() );
        root.i = 128;
        storage.setRoot(root);
        storage.commit();
        storage.rollback();
        root = (Root)storage.getRoot();
        assertEquals(root.i, 128);
    }