public void ShowSuppliersTest()
        {
            mockRepository.Setup(x => x.ShowSuppliers())
            .Returns(listaSuppliersDTO);

            var handler = new ShowSuppliersHandler(mockRepository.Object);

            // Act
            ShowSuppliers su = new ShowSuppliers();

            var res = handler.Handle(su, ct);


            Assert.IsNotNull(res.Result);
        }
 public Task <IEnumerable <SupplierDTO> > Handle(ShowSuppliers request, CancellationToken cancellationToken)
 {
     return(Task.Run(() => {
         return supplierRepository.ShowSuppliers();
     }));
 }