public void GetValue_NullInput_ArgumentNullException()
{
var fruitContravariant = new FruitContravariant();
var ex = Assert.Throws <ArgumentNullException>(() => fruitContravariant.GetValue(null));
Assert.That(ex.ParamName, Is.EqualTo(GetValueInputParam));
}
public void GetValue_ReturnsCorrectValue()
{
const int FruitQuality = 30;
var fruit = new FruitStub(FruitQuality);
var fruitContravariant = new FruitContravariant();
var value = fruitContravariant.GetValue(fruit);
Assert.That(value, Is.EqualTo(FruitQuality));
}
