mockobjects-java-dev

[Joe W. <joe...@us...>]

Update of /cvsroot/mockobjects/nmock/sample/random
In directory usw-pr-cvs1:/tmp/cvs-serv29083/sample/random

Added Files:
	Weather.cs WeatherTest.cs 
Log Message:
Part of the WeatherRandom sample added.


--- NEW FILE: Weather.cs ---
namespace NMockSample.Random 
{

	public class Weather 
	{
		private WeatherRandom random;
		private bool isRaining = false;
		private double temperature = 0.0;
			
		public Weather( WeatherRandom random ) 
		{
			this.random = random;
		}
		
		public bool IsRaining() 
		{
			return isRaining;
		}
		
		public double GetTemperature() 
		{
			return temperature;
		}
		
		public void Randomize() 
		{
			temperature = random.NextTemperature();
			isRaining = random.NextIsRaining();
			if( isRaining ) temperature *= 0.5;
		}
		
	}

	public interface WeatherRandom 
	{
		bool NextIsRaining();
		double NextTemperature();
	}
	
	public class DefaultWeatherRandom : WeatherRandom
	{
		private const double CHANCE_OF_RAIN = 0.2;
		private const double MIN_TEMPERATURE = 20;
		private const double MAX_TEMPERATURE = 30;
		
		private const double TEMPERATURE_RANGE = (MAX_TEMPERATURE-MIN_TEMPERATURE);
    
		private System.Random rng;
    
		public DefaultWeatherRandom( System.Random rng ) 
		{
			this.rng = rng;
		}
		
		public bool NextIsRaining() {
			return rng.NextDouble() < CHANCE_OF_RAIN;
		}
		
		public double NextTemperature() {
			return MIN_TEMPERATURE + rng.NextDouble() * TEMPERATURE_RANGE;
		}
	}

}

--- NEW FILE: WeatherTest.cs ---
using NUnit.Framework;
using NMock;

namespace NMockSample.Random 
{

	[TestFixture]
	public class WeatherTest
	{

		private IMock random;
		private Weather weather;
    
    	[SetUp]
    	public void SetUp() {
			random = new DynamicMock(typeof(WeatherRandom));
			weather = new Weather((WeatherRandom)random.Object);    		
    	}
    	
		[Test]    
		public void RandomRaining() {
			random.ExpectAndReturn("NextTemperature", 1.0);
			random.ExpectAndReturn("NextIsRaining", true);
			weather.Randomize();
			Assertion.Assert("is raining", weather.IsRaining());
		}
    
		[Test]    
		public void RandomNotRaining() {
			random.ExpectAndReturn("NextTemperature", 1.0);
			random.ExpectAndReturn("NextIsRaining", false);
			weather.Randomize();
			Assertion.Assert("is not raining", !weather.IsRaining());
		}
    
    	[Test]
 		public void RandomTemperatureSunny() {
			double TEMPERATURE = 20.0;
			random.ExpectAndReturn("NextTemperature", TEMPERATURE);
			random.ExpectAndReturn("NextIsRaining", false);
			weather.Randomize();
			Assertion.AssertEquals("temperature", TEMPERATURE, weather.GetTemperature());
	    }

    	[Test]
 		public void RandomTemperatureRaining() {
			double TEMPERATURE = 20.0;
			random.ExpectAndReturn("NextTemperature", TEMPERATURE);
			random.ExpectAndReturn("NextIsRaining", true);
			weather.Randomize();
			Assertion.AssertEquals("temperature", TEMPERATURE / 2.0, weather.GetTemperature());
	    }

	}

}