public PriceCalculatorTest()
{
var discountConfig = GetTestDiscountConfig();
var rules = DiscountHelper.GetDiscountRuleFromConfig(discountConfig);
_calculator = new PriceCalculator(rules);
}
public void GetValidConfigTest()
{
var _config = GetTestDiscountConfig();
var rules = DiscountHelper.GetDiscountRuleFromConfig(_config);
Assert.IsType <List <IDiscountRule> >(rules);
Assert.Equal(4, rules.Count);
var firstRule = rules.First();
Assert.IsType <Discount10>(firstRule);
Assert.Equal("Discount 10%", firstRule.AssignedName);
}
static void Main(string[] args)
{
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);
IConfiguration config = builder.Build();
var discountConfig = new Discount();
config.GetSection("Discount").Bind(discountConfig);
var discountRules = DiscountHelper.GetDiscountRuleFromConfig(discountConfig);
var calculator = new PriceCalculator(discountRules);
//due to important part is Price calculator model, so skip input args and validation here
//assume all data is correct and invalid data will be reject before this
Console.WriteLine("-- Start Calculate input");
Console.WriteLine("Test with 1 person, code DIS10, price 500");
var bestRule = calculator.GetBestRule(1, "DIS10", 500);
if (!string.IsNullOrEmpty(bestRule.Name))
{
Console.WriteLine("-Match with promotion : " + bestRule.Name.ToString());
Console.WriteLine("-Amount : " + bestRule.Price.ToString());
}
Console.WriteLine("Test with 1 person, code STARCARD, price 2000");
bestRule = calculator.GetBestRule(1, "STARCARD", 2000);
if (!string.IsNullOrEmpty(bestRule.Name))
{
Console.WriteLine("-Match with promotion : " + bestRule.Name.ToString());
Console.WriteLine("-Amount : " + bestRule.Price.ToString());
}
Console.WriteLine("Test with 2 person, code DIS10, price 1500");
bestRule = calculator.GetBestRule(2, "DIS10", 1500);
if (!string.IsNullOrEmpty(bestRule.Name))
{
Console.WriteLine("-Match with promotion : " + bestRule.Name.ToString());
Console.WriteLine("-Amount : " + bestRule.Price.ToString());
}
Console.WriteLine("-- End Calculation");
}
