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 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));
}