public void TestNightRate()
{
// Requirements:
// Name: Night Rate
// Type: Flat Rate
// Total Price: $6.50
// Entry Condition: Enter between 6:00 PM to Midnight
// Exit Condition: Exit before 8 AM
// Assumption: Exiting before 8 AM is intended to be 8 AM the next day
var engine = new CarparkRE_Lib.RateEngine();
var ret = engine.LoadRates("CarParkRates.json");
Assert.IsTrue(ret == 0);
DateTime dtTest = new DateTime(2021, 4, 15);
CPRateRQ rq = new CPRateRQ();
// Night Rate - Normal weekday test
rq.EntryDT = dtTest.AddHours(18).AddMinutes(30); // Thursday 18:30 (6:30PM)
rq.ExitDT = dtTest.AddDays(1).AddHours(7); // Friday 07:00 AM
var rs = engine.CalculateParkingCharge(rq);
Assert.IsTrue(rs.RateName == "Night Rate");
Assert.IsTrue(rs.TotalPrice == 6.5m);
// Night Rate - Friday night test
rq.EntryDT = dtTest.AddDays(1).AddHours(18).AddMinutes(30); // Friday 18:30 (6:30PM)
rq.ExitDT = dtTest.AddDays(2).AddHours(7); // Saturday 07:00 AM
rs = engine.CalculateParkingCharge(rq);
Assert.IsTrue(rs.RateName == "Night Rate");
Assert.IsTrue(rs.TotalPrice == 6.5m);
}
public void TestStandardRates()
{
// Requirement:
// 0 - 1 Hours : $5
// 1 - 2 Hours : $10
// 2 - 3 Hours : $15
// 3+ Hours : $20 flat rate for each calendar day of parking
var engine = new CarparkRE_Lib.RateEngine();
var ret = engine.LoadRates("CarParkRates.json");
Assert.IsTrue(ret == 0);
DateTime dtTest = new DateTime(2021, 4, 15);
CPRateRQ rq = new CPRateRQ();
// Standard Rate - 47 Mins
rq.EntryDT = dtTest.AddHours(9); // Thursday 9:00 AM
rq.ExitDT = dtTest.AddHours(9).AddMinutes(47); // Thursday 9:47 AM
var rs = engine.CalculateParkingCharge(rq);
Assert.IsTrue(rs.RateName == "Standard Rate");
Assert.IsTrue(rs.TotalPrice == 5);
// Standard Rate - 1 Hour 47 Mins
rq.EntryDT = dtTest.AddHours(9); // Thursday 9:00 AM
rq.ExitDT = dtTest.AddHours(10).AddMinutes(47); // Thursday 10:47 AM
rs = engine.CalculateParkingCharge(rq);
Assert.IsTrue(rs.RateName == "Standard Rate");
Assert.IsTrue(rs.TotalPrice == 10);
// Standard Rate - 2 Hours 47 Mins
rq.EntryDT = dtTest.AddHours(9); // Thursday 9:00 AM
rq.ExitDT = dtTest.AddHours(11).AddMinutes(47); // Thursday 11:47 AM
rs = engine.CalculateParkingCharge(rq);
Assert.IsTrue(rs.RateName == "Standard Rate");
Assert.IsTrue(rs.TotalPrice == 15);
// Standard Rate - 3 Hours 47 Mins
rq.EntryDT = dtTest.AddHours(9); // Thursday 9:00 AM
rq.ExitDT = dtTest.AddHours(12).AddMinutes(47); // Thursday 12:47
rs = engine.CalculateParkingCharge(rq);
Assert.IsTrue(rs.RateName == "Standard Rate");
Assert.IsTrue(rs.TotalPrice == 20);
// Standard Rate - 2 Days 7 Hours 47 Mins - Maximum Rate $20 per day
rq.EntryDT = dtTest.AddHours(9); // Thursday 9:00 AM
rq.ExitDT = dtTest.AddDays(2).AddHours(16).AddMinutes(47); // Saturday 16:47 (4:47 PM)
rs = engine.CalculateParkingCharge(rq);
Assert.IsTrue(rs.RateName == "Standard Rate");
Assert.IsTrue(rs.TotalPrice == 60);
}
public void TestWeekendRate()
{
// Requirements:
// Name: Weekend Rate
// Type: Flat Rate
// Total Price: $10.00
// Entry Condition: Enter anytime past midnight on Friday
// Exit Condition: Exit any time before midnight on Sunday
var engine = new CarparkRE_Lib.RateEngine();
var ret = engine.LoadRates("CarParkRates.json");
Assert.IsTrue(ret == 0);
DateTime dtTest = new DateTime(2021, 4, 17);
CPRateRQ rq = new CPRateRQ();
// Weekend Rate
rq.EntryDT = dtTest.AddMinutes(12); // Saturday 00:12 AM
rq.ExitDT = dtTest.AddDays(1).AddHours(12).AddMinutes(47); // Sunday 12:47 PM
var rs = engine.CalculateParkingCharge(rq);
Assert.IsTrue(rs.RateName == "Weekend Rate");
Assert.IsTrue(rs.TotalPrice == 10);
}
public void TestEarlyBirdRate()
{
// Requirements:
// Name: Early Bird
// Type: Flat Rate
// Total Price: $13.00
// Entry Condition: Enter between 6:00 AM to 9:00 AM
// Exit Condition: Exit between 3:30 PM to 11:30 PM
var engine = new CarparkRE_Lib.RateEngine();
var ret = engine.LoadRates("CarParkRates.json");
Assert.IsTrue(ret == 0);
DateTime dtTest = new DateTime(2021, 4, 15);
CPRateRQ rq = new CPRateRQ();
rq.EntryDT = dtTest.AddHours(6).AddMinutes(30); // Thursday 06:30 AM
rq.ExitDT = dtTest.AddHours(16).AddMinutes(30); // Thursday 16:30 (4:30 PM)
var rs = engine.CalculateParkingCharge(rq);
Assert.IsTrue(rs.RateName == "Early Bird");
Assert.IsTrue(rs.TotalPrice == 13);
}
/// <summary>
/// Starts up the Carpark Rate Engine Library, loads the rates and gets the calculated rate to charge the customer for the given carpark session
/// </summary>
/// <param name="oInput"></param>
/// <returns></returns>
private string GetCalculatedRate(CPRateRQ oInput, Rates oRateCard)
{
// Create a return object
CPRateRS oRate = new CPRateRS();
try
{
// Create and instance of the Rate Engine and load the Rate table
var cpEngine = new CarparkRE_Lib.RateEngine();
if (cpEngine.LoadRates(oRateCard) >= 0)
{
// Get the Rate and Total Amount to charge the customer
oRate = cpEngine.CalculateParkingCharge(oInput);
}
else
{
// Add a custom message if the rates failed to load
oRate.ErrorHResult = -1;
oRate.ErrorMsg = "Failed to load rates.";
}
}
catch (Exception e)
{
// Record any errors in the return object
oRate = new CPRateRS()
{
ErrorHResult = e.HResult,
ErrorMsg = e.ToString()
};
}
// Return as a Json string
return(JsonConvert.SerializeObject(oRate));
}
public void TestCheapestRate()
{
// Requirements:
// The customer should get the cheapest deal based on the rules which apply to the time period
var engine = new CarparkRE_Lib.RateEngine();
var ret = engine.LoadRates("CarParkRates.json");
Assert.IsTrue(ret == 0);
DateTime dtTest = new DateTime(2021, 4, 15);
CPRateRQ rq = new CPRateRQ();
// Crossover Case: Qualifies for Standard Rate - 7 Hours 47 Mins ($20) or Early Bird Rate ($13)
rq.EntryDT = dtTest.AddHours(9); // Thursday 9:00 AM
rq.ExitDT = dtTest.AddHours(16).AddMinutes(47); // Thursday 16:47 (4:47 PM)
var rs = engine.CalculateParkingCharge(rq);
Assert.IsTrue(rs.RateName == "Early Bird");
Assert.IsTrue(rs.TotalPrice == 13);
}