public void GetNumberOfOrders_OrdersExistInDatabase_NumberOfOrdersIsReturned()
{
//Arrange
var viewModel = new OrderViewModel();
var ordersToAdd = OrderCreator.CreateOrders_TwoOrdersWithSameReuquestId();
viewModel.AddNewOrders(ordersToAdd);
//Action
int numberOfOrders = viewModel.GetNumberOfOrders();
//Assert
Assert.AreEqual(2, numberOfOrders);
}
public void GetAveragePriceOfOrder_OrdersExistInDatabase_AveragePriceIsReturned()
{
//Arrange
var viewModel = new OrderViewModel();
var ordersToAdd = OrderCreator.CreateOrders_TwoOrdersWithSameReuquestId();
viewModel.AddNewOrders(ordersToAdd);
decimal average = 269.6m; // calculated based on the orders added into database
// first request => 12 * 12.2 + 10 * 10 = 246.4, second request => 24 * 12.2 = 292.8
// Average = 269.6
decimal averagePrice = viewModel.GetAveragePriceOfOrder();
//Assert
Assert.AreEqual(average, averagePrice);
}
public void FetchAllOrders_OrdersAreInDatabase_AllOrdersAreReturned()
{
//Arrange
var viewModel = new OrderViewModel();
// create three orders where 2 refere to same request id
var ordersToAdd = OrderCreator.CreateOrders_TwoOrdersWithSameReuquestId();
// add them to database
viewModel.AddNewOrders(ordersToAdd);
//Action
var orders = viewModel.GetAllOrders();
//Assert
Assert.IsTrue(2 == orders.Count);
}
public void GetOrdersInGivenRange_OrdersExistInDatabase_OrdersInGivenRangeAreReturned()
{
//Arrange
var viewModel = new OrderViewModel();
decimal lowerBound = 1.5m;
decimal upperBound = 5.7m;
var ordersToAdd = OrderCreator.CreateOrders_TwoOrdersWithSameReuquestId();
//Action
var ordersInGivenRange = viewModel.GetOrdersInGivenRange(lowerBound, upperBound);
// Assert
// Orders in range( price >= lowerBound && price <= upperBound) are returned
ordersInGivenRange.ForEach(order => Assert.IsTrue(order.Price >= lowerBound && order.Price <= upperBound));
}
public void GetTotalPriceOfOrders_OrdersExistInDatabase_NumberOfOrdersIsReturned()
{
//Arrange
var viewModel = new OrderViewModel();
var ordersToAdd = OrderCreator.CreateOrders_TwoOrdersWithSameReuquestId();
viewModel.AddNewOrders(ordersToAdd);
decimal result = 539.2m; // calculated based on the orders added into database
// first request => 12 * 12.2m = 146.4, second request => 24 * 12.2 = 292.8, third request => 10*10 = 100
// sum = 539.2
//Action
decimal totalPriceOfOrders = viewModel.GetTotalPriceOfOrders();
//Assert
Assert.AreEqual(result, totalPriceOfOrders);
}