public void WaterholeCanNotBeEatenByPredatorNoFood()
{
var wateringhole = new WateringHole();
var species = new MockSpecies();
species.IsPredator = true;
Assert.IsFalse(wateringhole.CanBeEatenBy(species));
Assert.AreEqual(0, wateringhole.FoodAmount);
}
public void WaterHoleThrowsExceptionIfEatIsEmptyAndPredator()
{
var wateringhole = new WateringHole();
var species = new MockSpecies();
species.IsPredator = true;
Assert.ThrowsException <InvalidOperationException>(() => wateringhole.Eat(species));
Assert.AreEqual(0, wateringhole.FoodAmount);
}
public void WaterholeCanBeEatenByNoPredatorWithFood()
{
var wateringhole = new WateringHole();
var species = new MockSpecies();
species.IsPredator = false;
wateringhole.AddFood(10);
Assert.IsTrue(wateringhole.CanBeEatenBy(species));
Assert.AreEqual(10, wateringhole.FoodAmount);
}
public void WaterHoleEatCannotEatAsPredator()
{
var wateringhole = new WateringHole();
var species = new MockSpecies();
species.IsPredator = true;
wateringhole.AddFood(10);
Assert.ThrowsException <InvalidOperationException>(() => wateringhole.Eat(species));
Assert.AreEqual(10, wateringhole.FoodAmount);
}
public void WaterHoleCannotTryEatIfHoleIsEmpty()
{
var wateringhole = new WateringHole();
var species = new MockSpecies();
species.IsPredator = false;
var result = wateringhole.TryEat(species, out int food);
Assert.AreEqual(0, food);
Assert.IsFalse(result);
Assert.AreEqual(0, wateringhole.FoodAmount);
}
public void WaterHoleEatCanEat()
{
var wateringhole = new WateringHole();
var species = new MockSpecies();
species.IsPredator = false;
wateringhole.AddFood(10);
var result = wateringhole.Eat(species);
Assert.AreEqual(9, wateringhole.FoodAmount);
Assert.AreEqual(1, result);
}
public void WaterHoleTryEatCanEat()
{
var wateringhole = new WateringHole();
var species = new MockSpecies();
species.IsPredator = false;
wateringhole.AddFood(10);
Assert.AreEqual(10, wateringhole.FoodAmount);
var result = wateringhole.TryEat(species, out int food);
Assert.AreEqual(1, food);
Assert.AreEqual(9, wateringhole.FoodAmount);
Assert.IsTrue(result);
}