public async void CalculateTrolley_WhenTrolleyInfoIsNull_ReturnsZero()
{
// Arrange
var sutFactory = new SutTrolleyCalculatorFactory();
var sutTrolleyCalculator = sutFactory.Create();
// Act
var result = await sutTrolleyCalculator.CalculateTrolley(null);
// Assert
result.Should().Be(0);
}
public void CalculateTrolley_WhenTrolleyInfoPropertyIsNull_ReturnsZero(TrolleyInfo trolleyInfo)
{
// Arrange
var sutFactory = new SutTrolleyCalculatorFactory();
var sutTrolleyCalculator = sutFactory.Create();
// Act
Func <Task> action = async() => await sutTrolleyCalculator.CalculateTrolley(trolleyInfo);
// Assert
action.Should().ThrowExactlyAsync <ArgumentException>()
.WithMessage("Products, Quantities and Specials properties cannot be null.");
}
public async void CalculateTrolley_WhenTrolleyInfoIsValid_ReturnsTotalReceivedFromTheExternalApi()
{
// Arrange
var trolleyInfo = new TrolleyInfo();
decimal expectedResult = 10.2m;
var sutFactory = new SutTrolleyCalculatorFactory();
sutFactory.SetupCalculatorTrolleyApiResult(trolleyInfo, expectedResult);
var sutTrolleyCalculator = sutFactory.Create();
// Act
var result = await sutTrolleyCalculator.CalculateTrolley(trolleyInfo);
// Assert
result.Should().Be(expectedResult);
}