public void ShouldSumOrdersAmountWhenThereAreNoOrders()
{
var repository = Mock.Of <IOrderRepository>(r => r.GetList() == GetOrdersEmpty());
var notifier = Mock.Of <INotifier>();
var sut = new OrdersStatisticCalculator(repository, notifier);
var res = sut.Sum();
Assert.That(res, Is.EqualTo(0));
}
public void UserIsNotifiedWhenSumIsCalculated()
{
var repository = Mock.Of <IOrderRepository>(r => r.GetList() == GetOrdersEmpty());
var notifier = Mock.Of <INotifier>();
var sut = new OrdersStatisticCalculator(repository, notifier);
var res = sut.Sum();
Mock.Get(notifier).Verify(m => m.Notify(res), Times.Once);
}
public void ShouldSumOrdersAmount()
{
var repositoryMock = new Mock <IOrderRepository>();
repositoryMock.Setup(m => m.GetList()).Returns(new[] { 50, 50 }.Select(x => new Order(x)));
var notifier = Mock.Of <INotifier>();
var sut = new OrdersStatisticCalculator(repositoryMock.Object, notifier);
var res = sut.Sum();
Assert.That(res, Is.EqualTo(100));
}
