单元测试 - 设置模型属性值

我目前正在编写单元测试，但失败了...它指出：failed. Expected:<0>. Actual:<16>.我知道发生这种情况是因为RateManagement模型设置不正确，但不确定如何在我的测试中设置此数据。

问：如何填充RateManagement模型以便正确测试值？

测试失败

[TestMethod]
public void BabysitterBusiness_StartTimeBedTimeAndEndTimeAreRecorded_ReturnsCorrectAmountDue()
{
    // Arrange
    var data = new RateManagement
    {
        TotalBedtimeHours = TimeSpan.FromHours(3),
        TotalHoursBeforeBedtime = TimeSpan.FromHours(2),
        TotalOvertimeHours = TimeSpan.FromHours(4)
    };
    // Act
    var result = _business.CalculatePaymentDue();
    // Assert
    Assert.AreEqual(result, 16M);
}

费率管理类

public class RateManagement 
    {
        public TimeSpan TotalBedtimeHours { get; set; }
        public TimeSpan TotalOvertimeHours { get; set; }
        public TimeSpan TotalHoursBeforeBedtime { get; set; }
    }

公务舱

using System;
using System.Globalization;
using BabysitterKata.Models;
namespace BabysitterKata.Business
{
    public class BabysitterBusiness
    {
        private readonly TimeManagement _timeManagement;
        private readonly RateManagement _rateManagement;
        private readonly HourlyRate _hourlyRate = new HourlyRate
        {
            StartingRate = 12M,
            BedtimeRate = 8M,
            OvertimeRate = 16M
        };
        public BabysitterBusiness(TimeManagement timeManagement, RateManagement rateManagement)
        {
            _timeManagement = timeManagement;
            _rateManagement = rateManagement;
        }
        public decimal CalculatePaymentDue()
        {
            // calculate amount due for total hours
            var beforeBedtimeAmountDue = _hourlyRate.StartingRate * _rateManagement.TotalHoursBeforeBedtime.Hours;
            var duringBedtimeAmountDue = _hourlyRate.BedtimeRate * _rateManagement.TotalBedtimeHours.Hours;
            var afterHoursAmountDue = _hourlyRate.OvertimeRate * _rateManagement.TotalOvertimeHours.Hours;
            // rounding up if not at start of hour
            if (_rateManagement.TotalHoursBeforeBedtime.Minutes != 00)
            {
                beforeBedtimeAmountDue += _hourlyRate.StartingRate;
            }
            if (_rateManagement.TotalBedtimeHours.Minutes != 00)
            {
                duringBedtimeAmountDue += _hourlyRate.BedtimeRate;
            }
            if (_rateManagement.TotalOvertimeHours.Minutes != 00)
            {
                afterHoursAmountDue += _hourlyRate.OvertimeRate;
            }
            return beforeBedtimeAmountDue + duringBedtimeAmountDue + afterHoursAmountDue;
        }
    }
}

// Arrange
var data = new RateManagement
{
    TotalBedtimeHours = TimeSpan.FromHours(3),
    TotalHoursBeforeBedtime = TimeSpan.FromHours(2),
    TotalOvertimeHours = TimeSpan.FromHours(4)
};
var timeData = new TimeManagement { // your properties };
// Act
var business = new BabysitterBusiness(timeData, data);
var result = business.CalculatePaymentDue();
// Assert
Assert.AreEqual(result, 16M);