public async Task Delete_Valid_Data()
        {
            //Arrange

            var producer = new Producer
            {
                Id      = 1,
                Name    = "Ilon",
                Phone   = "+380343434394",
                Email   = "*****@*****.**",
                WebSite = "https://lol.com"
            };

            context.Add(producer);
            context.SaveChanges();


            //Act
            var actualResult   = (await controller.Delete(producer.Id) as RedirectToActionResult).ActionName;
            var expectedResult = "Index";

            //Assert
            Assert.AreEqual(actualResult, expectedResult);
        }