public void EmptyConfigThrowsException()
{
var mockRateCalculatorFactory = Substitute.For <IRateCalculatorFactory>();
var mockCalculatorFactory = Substitute.For <IRateCalculator>();
var parameters = new ParkingParameters
{
Entry = DateTime.Today,
Exit = DateTime.Now
};
mockRateCalculatorFactory.GetRateCalculator(parameters).Returns(mockCalculatorFactory);
mockCalculatorFactory.GetAmount(parameters).Returns(10.00m);
mockCalculatorFactory.GetRateName().Returns("standard");
var rateService = new RateService(mockRateCalculatorFactory);
var result = rateService.GetTicket(parameters);
Assert.Equal(10.00m, result.Result.Amount);
Assert.Equal("standard", result.Result.RateName);
}