public void GetProductsTest()
{
// Arrange
IProductsService productsService = new ProductsService();
ITextToSpeech mockTextToSpeech = new MockTextToSpeach();
var vm = new ProductsViewModel(productsService, mockTextToSpeech);
// Act
vm.DownloadProducts();
// Assert
var expected = productsService.Getproducts();
var actual = vm.Products;
Assert.AreEqual(expected, actual);
}