public void PickCoinsForChange_NoEuroLeft_ReturnsChangeAsCents()
{
VendingCoinInventoryService vis = new VendingCoinInventoryService();
var invSnapshot = vis.CreateInventorySnapshot();
VendingCoinRepository.VendingCoins.Clear();
VendingCoinRepository.VendingCoins = new List <VendingCoin>()
{
new VendingCoin()
{
Value = .10M, Quantity = 100
},
new VendingCoin()
{
Value = .20M, Quantity = 100
},
new VendingCoin()
{
Value = .50M, Quantity = 100
},
};
var result = vis.PickCoinsForChange(1.30M);
var changeAmount = result.Sum(s => s.Amount);
Assert.Equal(1.30M, changeAmount);
Assert.Equal(0, result.Count(c => Math.Truncate(c.Value) > 0));
vis.RestoreInventorySnapshot(invSnapshot.ToList());
}
public void PickCoinsForChange_ValidateEuroCentChangeAmount_ReturnsCorrectAmount()
{
VendingCoinInventoryService vis = new VendingCoinInventoryService();
var result = vis.PickCoinsForChange(1.30M);
var changeAmount = result.Sum(s => s.Amount);
Assert.Equal(1.30M, changeAmount);
}
public void WithdrawVendingItem_WithdrawItemReturnChangeFromInsertedCoins_ReturnsFewerCoinsChange()
{
List <VendingCoin> insertedCoins = new List <VendingCoin>()
{
new VendingCoin()
{
Value = 1, Quantity = 1
},
new VendingCoin()
{
Value = .20M, Quantity = 1
},
new VendingCoin()
{
Value = .50M, Quantity = 1
},
new VendingCoin()
{
Value = .10M, Quantity = 1
},
new VendingCoin()
{
Value = .20M, Quantity = 1
},
};
VendingCoinInventoryService vis = new VendingCoinInventoryService();
var invSnapshot = vis.CreateInventorySnapshot();
VendingCoinRepository.VendingCoins.ToList().Clear();
VendingCoinRepository.VendingCoins = new List <VendingCoin>()
{
new VendingCoin()
{
Value = .10M, Quantity = 1
},
};
VendingMachineService vms = new VendingMachineService(new VendingCoinInventoryService());
var result = vms.WithdrawVendingItem(new VendingItem()
{
Name = "Tea", Price = 1.80M, Quantity = 10
},
insertedCoins);
Assert.Equal(.20M, result.ReturnedAmount);
Assert.Equal(.20M, result.ReturnedCoins.Where(w => w.Value == .20M).Select(s => s.Amount).FirstOrDefault());
Assert.Contains("Thank You", result.Message);
vis.RestoreInventorySnapshot(invSnapshot.ToList());
}
public void WithdrawVendingItem_WithdrawItemNoChange_ReturnsInsertedCoins()
{
List <VendingCoin> insertedCoins = new List <VendingCoin>()
{
new VendingCoin()
{
Value = 1, Quantity = 1
},
new VendingCoin()
{
Value = .50M, Quantity = 1
},
new VendingCoin()
{
Value = .50M, Quantity = 1
},
};
VendingCoinInventoryService vis = new VendingCoinInventoryService();
var invSnapshot = vis.CreateInventorySnapshot();
VendingCoinRepository.VendingCoins.Clear();
VendingCoinRepository.VendingCoins = new List <VendingCoin>()
{
new VendingCoin()
{
Value = .10M, Quantity = 1
},
};
VendingMachineService vms = new VendingMachineService(new VendingCoinInventoryService());
var result = vms.WithdrawVendingItem(new VendingItem()
{
Name = "Tea", Price = 1.80M, Quantity = 10
},
insertedCoins);
Assert.Equal(2, result.ReturnedAmount);
Assert.Contains("Not enough coins", result.Message);
vis.RestoreInventorySnapshot(invSnapshot.ToList());
}
