protected static void Because_of()
        {
            entity = ExchangeData.CreateBasicEntityWithOneMapping();
            mapping = entity.Mappings[0];
            client = new HttpClient(ServiceUrl["Exchange"] + string.Format("{0}/mapping/{1}", entity.Id, mapping.Id));

            response = client.Get();
            mappingResponse = response.Content.ReadAsDataContract<EnergyTrading.Mdm.Contracts.MappingResponse>();
        }
        protected static void Because_of()
        {
            entity = ExchangeData.CreateBasicEntityWithOneMapping();
            mapping = entity.Mappings[0];
            client = new HttpClient(ServiceUrl["Exchange"] + string.Format("{0}/mapping/{1}", entity.Id, mapping.Id));

            response = client.Get();
            mappingResponse = response.Content.ReadAsDataContract<EnergyTrading.Mdm.Contracts.MappingResponse>();
        }