Tavern Wench

Inspired on Ruby's factory_girl and starting as a fork of FactoryGirl.NET, Tavern Wench implements a factory that maps key-attributes in explicitly defined object instances, assuring that every call over a value of a key-attribute will return the instance you're working with.

Suppose you're testing a feature that references a User instance called "Jenna". Every time you ask TavernWench for "Jenna" she will return the same "Jenna". Here's how you do it:

First teach the wench how to deal with your class (or don't if you're fine with the default behavior):

    TavernWench.Configure<User>(m => {
                                       m.SetKey(u => u.FirstName);
                                });

Then, explicitly declare your object:

    TavernWench.Remember(() => new User {
                                  FirstName = "Jenna",
                                  LastName = "Jameson"
                                });

Now ask nicely for it:

    var user = TavernWench.Gimme<User>("Jenna");

Persistence Support

Configuration is for phonies

If you're lazy like me and don't want to use TavernWench.Configure to determine how the factory should behave, the wench will work fine as well. The default behavior is to not persist the objects and to use ToString() as the Key. So to properly get a Fruit with no previous configuration at all we should query the wench like this:

	public class Fruit {
        public string Name;
        public int Color { get; set; }

        public override string ToString() {
            return "A " + this.Color.ToString() + " " + this.Name;
        }
    }

    TavernWench.Remember(() => new Fruit { Name = "banana", Color = "yellow" });
    var banana = TavernWench.Gimme<Fruit>("A yellow banana");

Context

The TavernWench will store everything you tell her to remember, but if, perchance, you want her to forget everything you said to her just invoke TavernWench.Forget(). That feature is specially useful if you want to prevent leaky tests.

    [SetUp]
    public void LetsTestStuff() {
        TavernWench.Remember(() => new Fruit { Name = "banana", Color = "yellow" });
    }

    [TearDown]
    public void TheTestWasAwesomeBye() {
        TavernWench.Forget();
    }