public void List_ProvidePageNumber_ShouldReturnProductsForProvidedPageNumber()
{
// Arrange:
const int PAGE_SIZE = 2;
var configurationReaderMock = new Mock <IAppConfigurationReader>();
configurationReaderMock.Setup(reader => reader.GetProductsCountPerPage()).Returns(PAGE_SIZE);
var productsInRepository = new List <Product>
{
new Product {
ProductID = 1, Category = "some category"
},
new Product {
ProductID = 2, Category = "some category"
},
new Product {
ProductID = 3, Category = "some category"
},
new Product {
ProductID = 4, Category = "some category"
},
new Product {
ProductID = 5, Category = "some category"
}
};
var productsSelectorServiceMock = new Mock <IProductsSelectorService>();
productsSelectorServiceMock.Setup(service => service.GetProductsForSelectedCategory(It.IsAny <string>()))
.Returns(productsInRepository.AsQueryable());
var controller = new ProductsListController(configurationReaderMock.Object, productsSelectorServiceMock.Object, new Mock <ILogger>().Object);
const int FIRST_PAGE = 1, SECOND_PAGE = 2, LAST_PAGE = 3;
// Act:
var resultForFirstPage = controller.List("some category", FIRST_PAGE).Model as List <Product>;
var resultForSecondPage = controller.List("some category", SECOND_PAGE).Model as List <Product>;
var resultForLastPage = controller.List("some category", LAST_PAGE).Model as List <Product>;
// Assert:
Assert.AreEqual(expected: 2, actual: resultForFirstPage.Count);
Assert.AreEqual(1, resultForFirstPage[0].ProductID);
Assert.AreEqual(2, resultForFirstPage[1].ProductID);
Assert.AreEqual(2, resultForSecondPage.Count);
Assert.AreEqual(3, resultForSecondPage[0].ProductID);
Assert.AreEqual(4, resultForSecondPage[1].ProductID);
Assert.AreEqual(1, resultForLastPage.Count);
Assert.AreEqual(5, resultForLastPage[0].ProductID);
}
public void List_ProvideFirstPageNumber_ShouldReturnAllProducts_WhenProductsCountDoesNotExceedMaxCountPerPage()
{
// Arrange:
const int PAGE_SIZE = 6;
var configurationReaderMock = new Mock <IAppConfigurationReader>();
configurationReaderMock.Setup(reader => reader.GetProductsCountPerPage()).Returns(PAGE_SIZE);
var productsInRepository = new List <Product>
{
new Product {
ProductID = 1, Category = "some category"
},
new Product {
ProductID = 2, Category = "some category"
},
new Product {
ProductID = 3, Category = "some category"
},
new Product {
ProductID = 4, Category = "some category"
},
new Product {
ProductID = 5, Category = "some category"
}
};
var productsSelectorServiceMock = new Mock <IProductsSelectorService>();
productsSelectorServiceMock.Setup(service => service.GetProductsForSelectedCategory(It.IsAny <string>()))
.Returns(productsInRepository.AsQueryable());
var controller = new ProductsListController(configurationReaderMock.Object, productsSelectorServiceMock.Object, new Mock <ILogger>().Object);
const int FIRST_PAGE = 1;
// Act:
var result = controller.List("some category", FIRST_PAGE).Model as List <Product>;
// Assert:
Assert.AreEqual(expected: productsInRepository, actual: result);
}