Caricature usage snippet

describe PersonTest, "when testing an isolation" do
  before :each do
    @isolation = Isolation.for IPerson
    @pt = PersonTest.new(@isolation)
    @pt.set_person_age_to_twenty
  end
  
  it "should have the age set to 20" do
    @pt.person.age.should be(20)
  end
end


**** C# code ****

public interface IPerson
{
    int age { get; set; }
    string name { get; set; }
}

public class Person : IPerson
{
    public int age { get; set; }
    public string name { get; set; }
}

public class PersonTest
{
    IPerson _person;

    public IPerson Person
    { get { return _person; } }

    public PersonTest() : this(null) { }
    public PersonTest(IPerson person)
    {
        _person = person ?? new Person();
    }

    public void SetPersonAgeToTwenty()
    {
        _person.age = 20;
    }
}