public void Given30Messages2DaysApart_StartingAt100AndDecreasingBy2BetweenEachMessage_DaysLeftEquals59()
{
Guid customerId = Guid.NewGuid();
Guid deviceId = Guid.NewGuid();
List <MonitoringMessage> messages =
new MonitoringMessageListBuilder(customerId, deviceId).AListOfMessages(29, 1, 100, 1).Build();
ForecastingEngine engine = new ForecastingEngine();
DeviceForecast forecast = engine.CalculateDeviceConsumableForecast(messages, deviceId);
// 4 consumables for this device, all are decreasing at the same rate of 1 percent per day
// which means they have 50 days left until hitting 10 percent
Assert.AreEqual(4, forecast.ConsumableForecasts.Count);
Assert.IsFalse(forecast.ConsumableForecasts.Any(x => x.CurrentLevel != 61));
Assert.IsFalse(forecast.ConsumableForecasts.Any(x => x.AverageDailyUse != 1));
Assert.IsFalse(forecast.ConsumableForecasts.Any(x => x.DaysRemainingToTenPercent != 50));
}
public DeviceForecast CalculateDeviceConsumableForecast(List <MonitoringMessage> messages, Guid deviceId)
{
DeviceForecast forecast = new DeviceForecast();
foreach (MonitoringMessage message
in messages.OrderByDescending(x => x.LastReportedAt))
{
//if level is greater than last reported, they probably replaced the cartridge and this report should not be counted toward average
//calculate average daily use, keep in mind it might not have been reported every day (some days may have been skipped)
//calculate Days remaining until ten percent left
//if level is 0, stop counting usage towards average
}
return(forecast);
}
public DeviceForecast CalculateDeviceConsumableForecast(List<MonitoringMessage> messages, Guid deviceId)
{
DeviceForecast forecast = new DeviceForecast();
foreach (MonitoringMessage message
in messages.OrderByDescending(x => x.LastReportedAt))
{
//if level is greater than last reported, they probably replaced the cartridge and this report should not be counted toward average
//calculate average daily use, keep in mind it might not have been reported every day (some days may have been skipped)
//calculate Days remaining until ten percent left
//if level is 0, stop counting usage towards average
}
return forecast;
}