public void weather_data_updates_statistics_correctly()
{
var wd = new WeatherData();
var display = new StatisticsDisplay(wd);
wd.SetMeasurements(20, 15, 73);
Assert.AreEqual("Avg/Max/Min Temperature: 20/20/20", display.Display());
wd.SetMeasurements(40, 15, 73);
Assert.AreEqual("Avg/Max/Min Temperature: 30/40/20", display.Display());
wd.SetMeasurements(0, 15, 73);
Assert.AreEqual("Avg/Max/Min Temperature: 20/40/0", display.Display());
}
public void weather_data_updates_observers_correctly()
{
var wd = new WeatherData();
var conditions = new CurrentConditionsDisplay(wd);
var heat = new HeatIndexDisplay(wd);
var stats = new StatisticsDisplay(wd);
var forecast = new ForecastDisplay(wd);
wd.SetMeasurements(80, 65, 30.4f);
Assert.AreEqual("Current Conditions: 80 celsius and humidity 65", conditions.Display());
Assert.AreEqual("Heat index is 82.95535", heat.Display());
Assert.AreEqual("Avg/Max/Min Temperature: 80/80/80", stats.Display());
Assert.AreEqual("Improving weather on the way!", forecast.Display());
wd.SetMeasurements(78, 90, 29.2f);
Assert.AreEqual("Current Conditions: 78 celsius and humidity 90", conditions.Display());
Assert.AreEqual("Heat index is 83.64967", heat.Display());
Assert.AreEqual("Avg/Max/Min Temperature: 79/80/78", stats.Display());
Assert.AreEqual("Weather is getting bad!", forecast.Display());
}