public int GetTableNumberWithHighestTotal()
{
return(_kitchen.GetAllOrders()
.GroupBy(o => o.TableNumber)
.Select(go => new { TableNumber = go.Key, SumTotalPrice = go.Sum(o => o.TotalPrice) })
.OrderByDescending(stp => stp.SumTotalPrice)
.First().TableNumber);
}
public void GettingAverageTotalPrice_ReturnsExpectedResult()
{
//Arrange
var orders = new Order[]
{
new Order()
{
TableNumber = 1, TotalPrice = 10
},
new Order()
{
TableNumber = 2, TotalPrice = 15
},
new Order()
{
TableNumber = 2, TotalPrice = 20
},
};
IKitchen fakeKitchen = A.Fake <IKitchen>();
A.CallTo(() => fakeKitchen.GetAllOrders()).Returns(orders);
var sut = new Restaurant(fakeKitchen);
int expected = 15;
//Act
decimal actual = sut.GetAverageOrderPrice();
//Assert
actual.Should().Be(expected);
}
public void GettingTableNumberWithMostOrders_ReturnsExpectedResult()
{
//Arrange
var orders = new Order[]
{
new Order()
{
TableNumber = 1, TotalPrice = 10
},
new Order()
{
TableNumber = 2, TotalPrice = 1
},
new Order()
{
TableNumber = 2, TotalPrice = 1
},
};
IKitchen fakeKitchen = A.Fake <IKitchen>();
A.CallTo(() => fakeKitchen.GetAllOrders()).Returns(orders);
var sut = new Restaurant(fakeKitchen);
int expected = 2;
//Act
int actual = sut.GetTableNumberWithHighestOrderCount();
//Assert
actual.Should().Be(expected);
}