public async Task GetSortedProductsQuery_SortByRecommended()
{
//arrange
var sampleProducts = GetSampleProducts();
_mockProductsService.Setup(i => i.GetProducts()).ReturnsAsync(sampleProducts);
var sampleHistory = GetSampleHistory();
_mockProductsService.Setup(i => i.GetShopperHistory()).ReturnsAsync(sampleHistory);
var service = _mockProductsService.Object;
var engine = new RecommendationEngine(service);
var handler = new GetSortedProductsQueryHandler(service, engine);
var query = new GetSortedProductsQuery(SortOrder.Recommended);
//act
var results = await handler.Handle(query, default(CancellationToken));
//assert
_mockProductsService.Verify(i => i.GetProducts(), Times.Once, "Get Products Method should be invoked in produts service");
_mockProductsService.Verify(i => i.GetShopperHistory(), Times.Once, "Get history method should be invoked in products service");
//Assert that first item name is "Product 3" with most quantity
Assert.AreEqual(results.First().Name, "Product 3", "Product with name Product 3 should be the first product");
Assert.AreEqual(results.Last().Name, "Product 1", "Product with name Product 1 should be the last product");
}
public async Task GetProducts_ShouldInvokeGetProductsQuery()
{
//Arrange
var query = new GetSortedProductsQuery(SortOrder.High);
var testProducts = GetTestProducts();
_mediator
.Setup(m => m.Send(It.IsAny <GetSortedProductsQuery>(), default)).ReturnsAsync(testProducts);
var mediatorObject = _mediator.Object;
var controller = new ProductsController(mediatorObject);
//Act
var products = await controller.GetProducts(SortOrder.High);
//Assert
products.Should().NotBeNull();
products.Should().HaveCount(2);
_mediator.Verify(i => i.Send(It.Is <GetSortedProductsQuery>(arg => arg.SortOption == SortOrder.High), It.IsAny <CancellationToken>()), Times.Once, "Should Send Get Sorted Products Query to Mediator");
}
public async Task GetSortedProductsQuery_SortByLow()
{
//arrange
var sampleProducts = GetSampleProducts();
_mockProductsService.Setup(i => i.GetProducts()).ReturnsAsync(sampleProducts);
var service = _mockProductsService.Object;
var engine = _mockEngine.Object;
var handler = new GetSortedProductsQueryHandler(service, engine);
var query = new GetSortedProductsQuery(SortOrder.Low);
//act
var results = await handler.Handle(query, default(CancellationToken));
//assert
_mockProductsService.Verify(i => i.GetProducts(), Times.Once, "Get Products Method should be invoked in produts service");
//Assert that first item name is "Product 1" with Lowes price
Assert.AreEqual(results.First().Name, "Product 1", "Product with name Product 1 should be the first product");
}
