org.eclipse.emf.cdo.tests.objectivity/src/org/eclipse/emf/cdo/tests/objectivity/ObjyBranchManagementTest.java - cdo/cdo.old - Git at Google

 /*
  * Copyright (c) 2010-2012 Eike Stepper (Loehne, Germany) and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *    Ibrahim Sallam - initial API and implementation
  */
 package org.eclipse.emf.cdo.tests.objectivity;

 import static org.junit.Assert.assertEquals;

 import org.eclipse.emf.cdo.server.internal.objectivity.db.FdManager;
 import org.eclipse.emf.cdo.server.internal.objectivity.db.ObjyConnection;
 import org.eclipse.emf.cdo.server.internal.objectivity.db.ObjySession;
 import org.eclipse.emf.cdo.server.internal.objectivity.schema.ObjyBranch;
 import org.eclipse.emf.cdo.server.internal.objectivity.schema.ObjyBranchManager;
 import org.eclipse.emf.cdo.server.internal.objectivity.utils.ObjyDb;
 import org.eclipse.emf.cdo.spi.common.branch.InternalCDOBranchManager.BranchLoader.BranchInfo;

 import com.objy.db.app.oo;
 import com.objy.db.app.ooObj;

 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;

 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;

 class Temp extends ooObj
 {
   protected long lValue = 0;

   protected int revision = 0;

   private int branchId = 0;

   public Temp(long value)
   {
     lValue = value;
     revision = 1;
   }

   public void revisionIt()
   {
     markModified();
     revision++;
   }

   public void setBranch(int id)
   {
     markModified();
     branchId = id;
   }

   public int getRevision()
   {
     fetch();
     return revision;
   }

   public int getBranchId()
   {
     fetch();
     return branchId;
   }

   public long getValue()
   {
     fetch();
     return lValue;
   }
 }

 /**
  * This class will hide access to Objectivity/Db
  *
  * @author Ibrahim Sallam
  */
 class ObjyDbStore
 {
   // private final String fdName = "c:\\data\\objyBranchTest.boot"; // TODO - this is windows path style, generalise it.

   private final String repoName = "TestRepo";

   private FdManager fdManager;

   private ObjyConnection objyConnection;

   private ObjySession objySession;

   public ObjyDbStore()
   {
     fdManager = new FdManager();
     objyConnection = ObjyConnection.INSTANCE;
   }

   public void startup()
   {
     fdManager.setFdDirPath("\\temp");
     fdManager.configure("objyBrnachTest");
     objyConnection.connect(fdManager.getFd(), oo.LogNone);
     objySession = objyConnection.getWriteSessionFromPool("TestSession");
   }

   public void shutdown()
   {
     fdManager.removeData();
     objyConnection.disconnect();
   }

   public ObjyBranchManager getBranchManager()
   {
     return ObjyDb.getOrCreateBranchManager(repoName);
   }

   public void begin()
   {
     objySession.begin();
   }

   public void commit()
   {
     objySession.commit();
   }

   public Temp newObject()
   {
     return new Temp(System.currentTimeMillis());
   }
 }

 /**
  * @author Ibrahim Sallam
  */
 public class ObjyBranchManagementTest
 {
   private static final String BRANCH_NAME_A = "MyBranchA";

   private static final String BRANCH_NAME_B = "MyBranchB";

   private final int baseBranchId = 0;

   private final long baseBranchTimeStamp = System.currentTimeMillis();

   ObjyDbStore dbStore = null;

   BranchInfo branchInfoA = null;

   BranchInfo branchInfoB = null;

   public static final int NEW_BRANCH = Integer.MAX_VALUE;

   public static final int NEW_LOCAL_BRANCH = Integer.MIN_VALUE;

   @Before
   public void setUp()
   {
     dbStore = new ObjyDbStore();
     branchInfoA = new BranchInfo(BRANCH_NAME_A, baseBranchId, baseBranchTimeStamp);
     branchInfoB = new BranchInfo(BRANCH_NAME_B, baseBranchId, baseBranchTimeStamp);
     dbStore.startup();
   }

   @Test
   public void getNextBranchId()
   {
     dbStore.begin();
     int branchId = dbStore.getBranchManager().nextBranchId();
     dbStore.commit();
     assertEquals(true, branchId > 0);
   }

   @Test
   public void createBranch()
   {
     dbStore.begin();
     int nextBranchId = dbStore.getBranchManager().getLastBranchId() + 1;
     dbStore.commit();

     dbStore.begin();
     int branchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
     dbStore.commit();
     assertEquals(branchId, nextBranchId);
   }

   @Test
   public void getUnavailableBranch()
   {
     dbStore.begin();
     ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(1);
     dbStore.commit();
     assertEquals(true, objyBranch == null);
   }

   @Test
   public void getBranch()
   {
     dbStore.begin();
     int branchId = dbStore.getBranchManager().createBranch(NEW_LOCAL_BRANCH, branchInfoB).getElement1();
     dbStore.commit();
     // using the branchId we'll get it from the dbStore.
     dbStore.begin();
     BranchInfo branchInfo = dbStore.getBranchManager().getBranch(branchId).getBranchInfo();
     dbStore.commit();
     assertEquals(baseBranchId, branchInfo.getBaseBranchID());
     assertEquals(baseBranchTimeStamp, branchInfo.getBaseTimeStamp());
     assertEquals(BRANCH_NAME_B, branchInfo.getName());
   }

   @Test
   public void createBranches()
   {
     // Create a group of branches (no sub-branches)
     dbStore.begin();
     int branchIdA = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
     int branchIdB = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoB).getElement1();
     dbStore.commit();

     dbStore.begin();
     int nextBranchId = dbStore.getBranchManager().nextBranchId();
     dbStore.commit();
     assertEquals(true, branchIdA < nextBranchId);
     assertEquals(true, branchIdB < nextBranchId);
   }

   @Test
   public void getBranches()
   {
     // Get all branches from a created group.

     // Create a group of branches (no sub-branches)
     dbStore.begin();
     int branchIdA = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
     int branchIdB = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoB).getElement1();
     dbStore.commit();

     // using the branchId we'll get it from the dbStore.
     dbStore.begin();
     BranchInfo branchInfoB = dbStore.getBranchManager().getBranch(branchIdB).getBranchInfo();
     dbStore.commit();
     assertEquals(baseBranchId, branchInfoB.getBaseBranchID());
     assertEquals(baseBranchTimeStamp, branchInfoB.getBaseTimeStamp());
     assertEquals(BRANCH_NAME_B, branchInfoB.getName());

     // using the branchId we'll get it from the dbStore.
     dbStore.begin();
     BranchInfo branchInfoA = dbStore.getBranchManager().getBranch(branchIdA).getBranchInfo();
     dbStore.commit();
     assertEquals(baseBranchId, branchInfoA.getBaseBranchID());
     assertEquals(baseBranchTimeStamp, branchInfoA.getBaseTimeStamp());
     assertEquals(BRANCH_NAME_A, branchInfoA.getName());
   }

   @Test
   public void getBrancheRange()
   {
     // Get a range of branches from a created group.
     int thisBaseBranchId = 0;
     long thisBaseBranchTimeStamp = System.currentTimeMillis();

     // Create a group of branches (no sub-branches)
     dbStore.begin();
     String prefixString = "Branch_";
     List<Integer> branchList = new ArrayList<Integer>();
     for (int i = 0; i < 20; i++)
     {
       dbStore.begin();
       BranchInfo branchInfo = new BranchInfo(prefixString + i, thisBaseBranchId, thisBaseBranchTimeStamp);
       int id = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfo).getElement1();
       branchList.add(id);
       dbStore.commit();
     }
     dbStore.commit();

     // Get range from 5 to 10.
     {
       dbStore.begin();
       List<ObjyBranch> branchRangeList = dbStore.getBranchManager().getBranches(branchList.get(5), branchList.get(10));
       int index = 5;
       for (ObjyBranch objyBranch : branchRangeList)
       {
         int expectedId = branchList.get(index);
         assertEquals(expectedId, objyBranch.getBranchId());
         assertEquals(thisBaseBranchId, objyBranch.getBaseBranchId());
         assertEquals(thisBaseBranchTimeStamp, objyBranch.getBaseBranchTimeStamp());
         assertEquals("Branch_" + index, objyBranch.getBranchName());
         index++;
       }
       dbStore.commit();
     }

     // Get range from 7 to end.
     {
       dbStore.begin();
       List<ObjyBranch> branchRangeList = dbStore.getBranchManager().getBranches(branchList.get(7), 0);
       assertEquals(13, branchRangeList.size());

       int index = 7;
       for (ObjyBranch objyBranch : branchRangeList)
       {
         int expectedId = branchList.get(index);
         assertEquals(expectedId, objyBranch.getBranchId());
         assertEquals(thisBaseBranchId, objyBranch.getBaseBranchId());
         assertEquals(thisBaseBranchTimeStamp, objyBranch.getBaseBranchTimeStamp());
         assertEquals("Branch_" + index, objyBranch.getBranchName());
         index++;
       }
       dbStore.commit();
     }
   }

   @Test
   public void deleteBranch()
   {
     dbStore.begin();
     int branchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
     dbStore.commit();

     // delete it.
     dbStore.begin();
     assertEquals(true, dbStore.getBranchManager().deleteBranch(branchId));
     dbStore.commit();
   }

   @Test
   public void createSubBranches()
   {
     dbStore.begin();
     int thisBaseBranchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
     dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoB);
     long thisBaseBranchTimeStamp = System.currentTimeMillis();
     // using the created branch we'll create subBranches.
     dbStore.commit();

     String prefixString = "SubBranch_";
     List<Integer> subBranchList = new ArrayList<Integer>();
     for (int i = 0; i < 10; i++)
     {
       dbStore.begin();
       BranchInfo branchInfo = new BranchInfo(prefixString + i, thisBaseBranchId, thisBaseBranchTimeStamp);
       int id = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfo).getElement1();
       subBranchList.add(id);
       dbStore.commit();
     }
     // get sub-branches for 0.
     List<ObjyBranch> objyBranchList = new ArrayList<ObjyBranch>();

     dbStore.begin();
     objyBranchList = dbStore.getBranchManager().getSubBranches(0);
     assertEquals(2, objyBranchList.size());
     dbStore.commit();

     dbStore.begin();
     objyBranchList = dbStore.getBranchManager().getSubBranches(thisBaseBranchId);
     assertEquals(10, objyBranchList.size());
     dbStore.commit();

   }

   @Test
   public void getSubBranches()
   {
     dbStore.begin();
     int thisBaseBranchId = dbStore.getBranchManager().createBranch(NEW_LOCAL_BRANCH, branchInfoA).getElement1();
     long thisBaseBranchTimeStamp = System.currentTimeMillis();
     // using the created branch we'll create subBranches.
     dbStore.commit();

     String prefixString = "SubBranch_";
     List<Integer> subBranchList = new ArrayList<Integer>();
     for (int i = 0; i < 10; i++)
     {
       dbStore.begin();
       BranchInfo branchInfo = new BranchInfo(prefixString + i, thisBaseBranchId, thisBaseBranchTimeStamp);
       int id = dbStore.getBranchManager().createBranch(NEW_LOCAL_BRANCH, branchInfo).getElement1();
       subBranchList.add(id);
       dbStore.commit();
     }
     // verify that we have sub-branches.
     dbStore.begin();
     int i = 0;
     for (Integer iValue : subBranchList)
     {
       BranchInfo branchInfo = dbStore.getBranchManager().getBranch(iValue).getBranchInfo();
       assertEquals(thisBaseBranchId, branchInfo.getBaseBranchID());
       assertEquals(thisBaseBranchTimeStamp, branchInfo.getBaseTimeStamp());
       assertEquals(prefixString + i++, branchInfo.getName());
     }
     dbStore.commit();

   }

   @Test
   public void addRevisionsToBranch()
   {
     List<Temp> objectList = new ArrayList<Temp>();
     // create 100 objects in Objy (Main Branch).
     dbStore.begin();
     for (int i = 0; i < 100; i++)
     {
       Temp tempObject = dbStore.newObject();
       if (i % 2 == 0)
       {
         objectList.add(tempObject);
       }
     }
     dbStore.commit();

     // create a branch.
     dbStore.begin();
     int branchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
     dbStore.commit();

     // version what we collected in the array, and put them into a new branch.
     {
       dbStore.begin();
       ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);

       for (Temp tempObj : objectList)
       {
         tempObj.setBranch(branchId);
         tempObj.revisionIt();
         objyBranch.addRevision(tempObj);
       }
       dbStore.commit();
     }
     // verify that the number of revisions in a branch is the same as what
     // we added.
     {
       dbStore.begin();
       ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);
       assertEquals(objectList.size(), objyBranch.numberOfRevisions());
       dbStore.commit();
     }
   }

   @Test
   public void getRevisionsFromBranch()
   {
     List<Temp> objectList = new ArrayList<Temp>();
     // create 100 objects in Objy (Main Branch).
     dbStore.begin();
     for (int i = 0; i < 200; i++)
     {
       Temp tempObject = dbStore.newObject();
       if (i % 2 == 0)
       {
         objectList.add(tempObject);
       }
     }
     dbStore.commit();

     // create a branch.
     dbStore.begin();
     int branchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
     dbStore.commit();

     // version what we collected in the array, and put them into a new branch.
     {
       dbStore.begin();
       ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);

       for (Temp tempObj : objectList)
       {
         tempObj.setBranch(branchId);
         tempObj.revisionIt();
         objyBranch.addRevision(tempObj);
       }
       dbStore.commit();
     }
     // Get the objects from the branch.
     {
       dbStore.begin();
       ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);
       Iterator<?> itr = objyBranch.getRevisions().iterator();
       List<Temp> actualList = new ArrayList<Temp>();
       while (itr.hasNext())
       {
         Temp tempObj = (Temp)itr.next();
         assertEquals(tempObj.getBranchId(), branchId);
         assertEquals(true, tempObj.getRevision() > 1);
         actualList.add(tempObj);
       }
       assertEquals(objectList.size(), actualList.size());
       dbStore.commit();
     }
   }

   @Test
   public void deleteRevisionsFromBranch()
   {
     List<Temp> objectList = new ArrayList<Temp>();
     // create 100 objects in Objy (Main Branch).
     dbStore.begin();
     for (int i = 0; i < 100; i++)
     {
       Temp tempObject = dbStore.newObject();
       if (i % 2 == 0)
       {
         objectList.add(tempObject);
       }
     }
     dbStore.commit();

     // create a branch.
     dbStore.begin();
     int branchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
     dbStore.commit();

     // version what we collected in the array, and put them into a new branch.
     {
       dbStore.begin();
       ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);

       for (Temp tempObj : objectList)
       {
         tempObj.setBranch(branchId);
         tempObj.revisionIt();
         objyBranch.addRevision(tempObj);
       }
       dbStore.commit();
     }
     // verify that the number of revisions in a branch is the same as what
     // we added.
     {
       dbStore.begin();
       ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);
       assertEquals(objectList.size(), objyBranch.numberOfRevisions());
       dbStore.commit();
     }

     // delete revisions
     {
       dbStore.begin();
       ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);
       for (Temp tempObj : objectList)
       {
         assertEquals(true, objyBranch.deleteRevision(tempObj));
       }
       dbStore.commit();
     }

     // verify that the number of revisions are 0
     {
       dbStore.begin();
       ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);
       assertEquals(0, objyBranch.numberOfRevisions());
       dbStore.commit();
     }
   }

   @Test(expected = IndexOutOfBoundsException.class)
   public void empty()
   {
     new ArrayList<Object>().get(0);
   }

   @After
   public void tearDown()
   {
     dbStore.shutdown();
   }

 }
	/*
	* Copyright (c) 2010-2012 Eike Stepper (Loehne, Germany) and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Ibrahim Sallam - initial API and implementation
	*/
	package org.eclipse.emf.cdo.tests.objectivity;

	import static org.junit.Assert.assertEquals;

	import org.eclipse.emf.cdo.server.internal.objectivity.db.FdManager;
	import org.eclipse.emf.cdo.server.internal.objectivity.db.ObjyConnection;
	import org.eclipse.emf.cdo.server.internal.objectivity.db.ObjySession;
	import org.eclipse.emf.cdo.server.internal.objectivity.schema.ObjyBranch;
	import org.eclipse.emf.cdo.server.internal.objectivity.schema.ObjyBranchManager;
	import org.eclipse.emf.cdo.server.internal.objectivity.utils.ObjyDb;
	import org.eclipse.emf.cdo.spi.common.branch.InternalCDOBranchManager.BranchLoader.BranchInfo;

	import com.objy.db.app.oo;
	import com.objy.db.app.ooObj;

	import org.junit.After;
	import org.junit.Before;
	import org.junit.Test;

	import java.util.ArrayList;
	import java.util.Iterator;
	import java.util.List;

	class Temp extends ooObj
	{
	protected long lValue = 0;

	protected int revision = 0;

	private int branchId = 0;

	public Temp(long value)
	{
	lValue = value;
	revision = 1;
	}

	public void revisionIt()
	{
	markModified();
	revision++;
	}

	public void setBranch(int id)
	{
	markModified();
	branchId = id;
	}

	public int getRevision()
	{
	fetch();
	return revision;
	}

	public int getBranchId()
	{
	fetch();
	return branchId;
	}

	public long getValue()
	{
	fetch();
	return lValue;
	}
	}

	/**
	* This class will hide access to Objectivity/Db
	*
	* @author Ibrahim Sallam
	*/
	class ObjyDbStore
	{
	// private final String fdName = "c:\\data\\objyBranchTest.boot"; // TODO - this is windows path style, generalise it.

	private final String repoName = "TestRepo";

	private FdManager fdManager;

	private ObjyConnection objyConnection;

	private ObjySession objySession;

	public ObjyDbStore()
	{
	fdManager = new FdManager();
	objyConnection = ObjyConnection.INSTANCE;
	}

	public void startup()
	{
	fdManager.setFdDirPath("\\temp");
	fdManager.configure("objyBrnachTest");
	objyConnection.connect(fdManager.getFd(), oo.LogNone);
	objySession = objyConnection.getWriteSessionFromPool("TestSession");
	}

	public void shutdown()
	{
	fdManager.removeData();
	objyConnection.disconnect();
	}

	public ObjyBranchManager getBranchManager()
	{
	return ObjyDb.getOrCreateBranchManager(repoName);
	}

	public void begin()
	{
	objySession.begin();
	}

	public void commit()
	{
	objySession.commit();
	}

	public Temp newObject()
	{
	return new Temp(System.currentTimeMillis());
	}
	}

	/**
	* @author Ibrahim Sallam
	*/
	public class ObjyBranchManagementTest
	{
	private static final String BRANCH_NAME_A = "MyBranchA";

	private static final String BRANCH_NAME_B = "MyBranchB";

	private final int baseBranchId = 0;

	private final long baseBranchTimeStamp = System.currentTimeMillis();

	ObjyDbStore dbStore = null;

	BranchInfo branchInfoA = null;

	BranchInfo branchInfoB = null;

	public static final int NEW_BRANCH = Integer.MAX_VALUE;

	public static final int NEW_LOCAL_BRANCH = Integer.MIN_VALUE;

	@Before
	public void setUp()
	{
	dbStore = new ObjyDbStore();
	branchInfoA = new BranchInfo(BRANCH_NAME_A, baseBranchId, baseBranchTimeStamp);
	branchInfoB = new BranchInfo(BRANCH_NAME_B, baseBranchId, baseBranchTimeStamp);
	dbStore.startup();
	}

	@Test
	public void getNextBranchId()
	{
	dbStore.begin();
	int branchId = dbStore.getBranchManager().nextBranchId();
	dbStore.commit();
	assertEquals(true, branchId > 0);
	}

	@Test
	public void createBranch()
	{
	dbStore.begin();
	int nextBranchId = dbStore.getBranchManager().getLastBranchId() + 1;
	dbStore.commit();

	dbStore.begin();
	int branchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
	dbStore.commit();
	assertEquals(branchId, nextBranchId);
	}

	@Test
	public void getUnavailableBranch()
	{
	dbStore.begin();
	ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(1);
	dbStore.commit();
	assertEquals(true, objyBranch == null);
	}

	@Test
	public void getBranch()
	{
	dbStore.begin();
	int branchId = dbStore.getBranchManager().createBranch(NEW_LOCAL_BRANCH, branchInfoB).getElement1();
	dbStore.commit();
	// using the branchId we'll get it from the dbStore.
	dbStore.begin();
	BranchInfo branchInfo = dbStore.getBranchManager().getBranch(branchId).getBranchInfo();
	dbStore.commit();
	assertEquals(baseBranchId, branchInfo.getBaseBranchID());
	assertEquals(baseBranchTimeStamp, branchInfo.getBaseTimeStamp());
	assertEquals(BRANCH_NAME_B, branchInfo.getName());
	}

	@Test
	public void createBranches()
	{
	// Create a group of branches (no sub-branches)
	dbStore.begin();
	int branchIdA = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
	int branchIdB = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoB).getElement1();
	dbStore.commit();

	dbStore.begin();
	int nextBranchId = dbStore.getBranchManager().nextBranchId();
	dbStore.commit();
	assertEquals(true, branchIdA < nextBranchId);
	assertEquals(true, branchIdB < nextBranchId);
	}

	@Test
	public void getBranches()
	{
	// Get all branches from a created group.

	// Create a group of branches (no sub-branches)
	dbStore.begin();
	int branchIdA = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
	int branchIdB = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoB).getElement1();
	dbStore.commit();

	// using the branchId we'll get it from the dbStore.
	dbStore.begin();
	BranchInfo branchInfoB = dbStore.getBranchManager().getBranch(branchIdB).getBranchInfo();
	dbStore.commit();
	assertEquals(baseBranchId, branchInfoB.getBaseBranchID());
	assertEquals(baseBranchTimeStamp, branchInfoB.getBaseTimeStamp());
	assertEquals(BRANCH_NAME_B, branchInfoB.getName());

	// using the branchId we'll get it from the dbStore.
	dbStore.begin();
	BranchInfo branchInfoA = dbStore.getBranchManager().getBranch(branchIdA).getBranchInfo();
	dbStore.commit();
	assertEquals(baseBranchId, branchInfoA.getBaseBranchID());
	assertEquals(baseBranchTimeStamp, branchInfoA.getBaseTimeStamp());
	assertEquals(BRANCH_NAME_A, branchInfoA.getName());
	}

	@Test
	public void getBrancheRange()
	{
	// Get a range of branches from a created group.
	int thisBaseBranchId = 0;
	long thisBaseBranchTimeStamp = System.currentTimeMillis();

	// Create a group of branches (no sub-branches)
	dbStore.begin();
	String prefixString = "Branch_";
	List<Integer> branchList = new ArrayList<Integer>();
	for (int i = 0; i < 20; i++)
	{
	dbStore.begin();
	BranchInfo branchInfo = new BranchInfo(prefixString + i, thisBaseBranchId, thisBaseBranchTimeStamp);
	int id = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfo).getElement1();
	branchList.add(id);
	dbStore.commit();
	}
	dbStore.commit();

	// Get range from 5 to 10.
	{
	dbStore.begin();
	List<ObjyBranch> branchRangeList = dbStore.getBranchManager().getBranches(branchList.get(5), branchList.get(10));
	int index = 5;
	for (ObjyBranch objyBranch : branchRangeList)
	{
	int expectedId = branchList.get(index);
	assertEquals(expectedId, objyBranch.getBranchId());
	assertEquals(thisBaseBranchId, objyBranch.getBaseBranchId());
	assertEquals(thisBaseBranchTimeStamp, objyBranch.getBaseBranchTimeStamp());
	assertEquals("Branch_" + index, objyBranch.getBranchName());
	index++;
	}
	dbStore.commit();
	}

	// Get range from 7 to end.
	{
	dbStore.begin();
	List<ObjyBranch> branchRangeList = dbStore.getBranchManager().getBranches(branchList.get(7), 0);
	assertEquals(13, branchRangeList.size());

	int index = 7;
	for (ObjyBranch objyBranch : branchRangeList)
	{
	int expectedId = branchList.get(index);
	assertEquals(expectedId, objyBranch.getBranchId());
	assertEquals(thisBaseBranchId, objyBranch.getBaseBranchId());
	assertEquals(thisBaseBranchTimeStamp, objyBranch.getBaseBranchTimeStamp());
	assertEquals("Branch_" + index, objyBranch.getBranchName());
	index++;
	}
	dbStore.commit();
	}
	}

	@Test
	public void deleteBranch()
	{
	dbStore.begin();
	int branchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
	dbStore.commit();

	// delete it.
	dbStore.begin();
	assertEquals(true, dbStore.getBranchManager().deleteBranch(branchId));
	dbStore.commit();
	}

	@Test
	public void createSubBranches()
	{
	dbStore.begin();
	int thisBaseBranchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
	dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoB);
	long thisBaseBranchTimeStamp = System.currentTimeMillis();
	// using the created branch we'll create subBranches.
	dbStore.commit();

	String prefixString = "SubBranch_";
	List<Integer> subBranchList = new ArrayList<Integer>();
	for (int i = 0; i < 10; i++)
	{
	dbStore.begin();
	BranchInfo branchInfo = new BranchInfo(prefixString + i, thisBaseBranchId, thisBaseBranchTimeStamp);
	int id = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfo).getElement1();
	subBranchList.add(id);
	dbStore.commit();
	}
	// get sub-branches for 0.
	List<ObjyBranch> objyBranchList = new ArrayList<ObjyBranch>();

	dbStore.begin();
	objyBranchList = dbStore.getBranchManager().getSubBranches(0);
	assertEquals(2, objyBranchList.size());
	dbStore.commit();

	dbStore.begin();
	objyBranchList = dbStore.getBranchManager().getSubBranches(thisBaseBranchId);
	assertEquals(10, objyBranchList.size());
	dbStore.commit();

	}

	@Test
	public void getSubBranches()
	{
	dbStore.begin();
	int thisBaseBranchId = dbStore.getBranchManager().createBranch(NEW_LOCAL_BRANCH, branchInfoA).getElement1();
	long thisBaseBranchTimeStamp = System.currentTimeMillis();
	// using the created branch we'll create subBranches.
	dbStore.commit();

	String prefixString = "SubBranch_";
	List<Integer> subBranchList = new ArrayList<Integer>();
	for (int i = 0; i < 10; i++)
	{
	dbStore.begin();
	BranchInfo branchInfo = new BranchInfo(prefixString + i, thisBaseBranchId, thisBaseBranchTimeStamp);
	int id = dbStore.getBranchManager().createBranch(NEW_LOCAL_BRANCH, branchInfo).getElement1();
	subBranchList.add(id);
	dbStore.commit();
	}
	// verify that we have sub-branches.
	dbStore.begin();
	int i = 0;
	for (Integer iValue : subBranchList)
	{
	BranchInfo branchInfo = dbStore.getBranchManager().getBranch(iValue).getBranchInfo();
	assertEquals(thisBaseBranchId, branchInfo.getBaseBranchID());
	assertEquals(thisBaseBranchTimeStamp, branchInfo.getBaseTimeStamp());
	assertEquals(prefixString + i++, branchInfo.getName());
	}
	dbStore.commit();

	}

	@Test
	public void addRevisionsToBranch()
	{
	List<Temp> objectList = new ArrayList<Temp>();
	// create 100 objects in Objy (Main Branch).
	dbStore.begin();
	for (int i = 0; i < 100; i++)
	{
	Temp tempObject = dbStore.newObject();
	if (i % 2 == 0)
	{
	objectList.add(tempObject);
	}
	}
	dbStore.commit();

	// create a branch.
	dbStore.begin();
	int branchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
	dbStore.commit();

	// version what we collected in the array, and put them into a new branch.
	{
	dbStore.begin();
	ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);

	for (Temp tempObj : objectList)
	{
	tempObj.setBranch(branchId);
	tempObj.revisionIt();
	objyBranch.addRevision(tempObj);
	}
	dbStore.commit();
	}
	// verify that the number of revisions in a branch is the same as what
	// we added.
	{
	dbStore.begin();
	ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);
	assertEquals(objectList.size(), objyBranch.numberOfRevisions());
	dbStore.commit();
	}
	}

	@Test
	public void getRevisionsFromBranch()
	{
	List<Temp> objectList = new ArrayList<Temp>();
	// create 100 objects in Objy (Main Branch).
	dbStore.begin();
	for (int i = 0; i < 200; i++)
	{
	Temp tempObject = dbStore.newObject();
	if (i % 2 == 0)
	{
	objectList.add(tempObject);
	}
	}
	dbStore.commit();

	// create a branch.
	dbStore.begin();
	int branchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
	dbStore.commit();

	// version what we collected in the array, and put them into a new branch.
	{
	dbStore.begin();
	ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);

	for (Temp tempObj : objectList)
	{
	tempObj.setBranch(branchId);
	tempObj.revisionIt();
	objyBranch.addRevision(tempObj);
	}
	dbStore.commit();
	}
	// Get the objects from the branch.
	{
	dbStore.begin();
	ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);
	Iterator<?> itr = objyBranch.getRevisions().iterator();
	List<Temp> actualList = new ArrayList<Temp>();
	while (itr.hasNext())
	{
	Temp tempObj = (Temp)itr.next();
	assertEquals(tempObj.getBranchId(), branchId);
	assertEquals(true, tempObj.getRevision() > 1);
	actualList.add(tempObj);
	}
	assertEquals(objectList.size(), actualList.size());
	dbStore.commit();
	}
	}

	@Test
	public void deleteRevisionsFromBranch()
	{
	List<Temp> objectList = new ArrayList<Temp>();
	// create 100 objects in Objy (Main Branch).
	dbStore.begin();
	for (int i = 0; i < 100; i++)
	{
	Temp tempObject = dbStore.newObject();
	if (i % 2 == 0)
	{
	objectList.add(tempObject);
	}
	}
	dbStore.commit();

	// create a branch.
	dbStore.begin();
	int branchId = dbStore.getBranchManager().createBranch(NEW_BRANCH, branchInfoA).getElement1();
	dbStore.commit();

	// version what we collected in the array, and put them into a new branch.
	{
	dbStore.begin();
	ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);

	for (Temp tempObj : objectList)
	{
	tempObj.setBranch(branchId);
	tempObj.revisionIt();
	objyBranch.addRevision(tempObj);
	}
	dbStore.commit();
	}
	// verify that the number of revisions in a branch is the same as what
	// we added.
	{
	dbStore.begin();
	ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);
	assertEquals(objectList.size(), objyBranch.numberOfRevisions());
	dbStore.commit();
	}

	// delete revisions
	{
	dbStore.begin();
	ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);
	for (Temp tempObj : objectList)
	{
	assertEquals(true, objyBranch.deleteRevision(tempObj));
	}
	dbStore.commit();
	}

	// verify that the number of revisions are 0
	{
	dbStore.begin();
	ObjyBranch objyBranch = dbStore.getBranchManager().getBranch(branchId);
	assertEquals(0, objyBranch.numberOfRevisions());
	dbStore.commit();
	}
	}

	@Test(expected = IndexOutOfBoundsException.class)
	public void empty()
	{
	new ArrayList<Object>().get(0);
	}

	@After
	public void tearDown()
	{
	dbStore.shutdown();
	}

	}