public void Test_GetAllOpportunity()
        {
            //Initialize SqlQueryHelper object
            var sqlConnection = new SqlConnection(ConnectionString);

            sqlConnection.Open();

            var command  = new SqlCommand("select count(*) from opportunity", sqlConnection);
            var oppCount = Convert.ToInt32(command.ExecuteScalar());

            //Opportunity
            Opportunity        opp     = new Opportunity();
            List <Opportunity> oppList = opp.GetAllOpportunities();

            Assert.AreEqual(oppCount, oppList.Count);
        }