/* This file is part of the db4o object database http://www.db4o.com

Copyright (C) 2004 - 2011  Versant Corporation http://www.versant.com

db4o is free software; you can redistribute it and/or modify it under
the terms of version 3 of the GNU General Public License as published
by the Free Software Foundation.

db4o is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License along
with this program.  If not, see http://www.gnu.org/licenses/. */

using Db4objects.Db4o.Internal;
using Db4oUnit;
using Db4oUnit.Extensions;

namespace Db4objects.Db4o.Tests.Common.Header
{
    public class IdentityTestCase : AbstractDb4oTestCase
    {
        public static void Main(string[] arguments)
        {
            new IdentityTestCase().RunAll();
        }

        public virtual void TestIdentitySignatureIsNotNull()
        {
            var identity = Db().Identity();
            Assert.IsNotNull(identity.GetSignature());
        }

        /// <exception cref="System.Exception"></exception>
        public virtual void TestIdentityPreserved()
        {
            var ident = Db().Identity();
            Reopen();
            var ident2 = Db().Identity();
            Assert.IsNotNull(ident);
            Assert.AreEqual(ident, ident2);
        }

        /// <exception cref="System.Exception"></exception>
        public virtual void TestGenerateIdentity()
        {
            if (IsMultiSession())
            {
                return;
            }
            var oldSignature = Db().Identity().GetSignature();
            GenerateNewIdentity();
            Reopen();
            ArrayAssert.AreNotEqual(oldSignature, Db().Identity().GetSignature());
        }

        private void GenerateNewIdentity()
        {
            ((LocalObjectContainer) Db()).GenerateNewIdentity();
        }
    }
}