Unittests.EnvironmentTest.RenameDatabase C# (CSharp) Метод

        private void RenameDatabase()
        {
            Upscaledb.Environment env = new Upscaledb.Environment();
            byte[] k = new byte[5];
            byte[] r = new byte[5];
            try {
                env.Create("ntest.db");
                Database db = env.CreateDatabase((short)13);
                db.Insert(k, r);
                db.Close();
                env.RenameDatabase((short)13, (short)15);
                db = env.OpenDatabase((short)15);
                byte[] f = db.Find(k);
                checkEqual(r, f);
                // db.Close();
                env.Close();
            }
            catch (DatabaseException e) {
                Assert.Fail("unexpected exception " + e);
            }
        }