public void Select_Credits_From_Lookups_Table_In_Descending_Order_From_DropDownListRequest_As_LookUpsModel()
        {
            //arrange
            var selectorLambdaOperatorDescriptor = GetExpressionDescriptor <IQueryable <LookUpsModel>, IEnumerable <LookUpsModel> >
                                                   (
                GetBodyForLookupsModel(),
                "q"
                                                   );
            IMapper           mapper     = serviceProvider.GetRequiredService <IMapper>();
            ISchoolRepository repository = serviceProvider.GetRequiredService <ISchoolRepository>();

            //act
            var expression = mapper.MapToOperator(selectorLambdaOperatorDescriptor).Build();
            var list       = RequestHelpers.GetLookupSelect
                             (
                new Business.Requests.GetTypedDropDownListRequest
            {
                Selector        = selectorLambdaOperatorDescriptor,
                ModelType       = typeof(LookUpsModel).AssemblyQualifiedName,
                DataType        = typeof(LookUps).AssemblyQualifiedName,
                ModelReturnType = typeof(IEnumerable <LookUpsModel>).AssemblyQualifiedName,
                DataReturnType  = typeof(IEnumerable <LookUps>).AssemblyQualifiedName
            },
                repository,
                mapper
                             ).Result.DropDownList.ToList();

            //assert
            AssertFilterStringIsCorrect(expression, "q => Convert(q.Where(l => (l.ListName == \"Credits\")).OrderByDescending(l => l.NumericValue).Select(l => new LookUpsModel() {NumericValue = l.NumericValue, Text = l.Text}))");
            Assert.Equal(5, list.Count);
        }
 public async Task <GetLookupDropDownListResponse> GetLookupDropDown([FromBody] GetTypedDropDownListRequest request)
 {
     return(await RequestHelpers.GetLookupSelect
            (
                request,
                repository,
                mapper
            ));
 }