Example for DiDay (from the tests)

gistfile1.cs

[TestClass]
public class DiDayTests
{
    [TestMethod]
    public void ResolveType()
    {
        var di = new DiDay(); // or DiDay.Default;

        di.Register<IBar>(d => new Bar(d.Resolve<IFoo>())); // Register Factory
        di.Register<IFoo>(new Foo("Kristoffer")); // Register Instance

        var bar = di.Resolve<IBar>();

        Assert.IsNotNull(bar);
        Assert.AreEqual(bar.FooInstance.Name, "Kristoffer");
    }

    [TestMethod]
    public void ManualResolveType()
    {
        var di = new DiDay(); // or DiDay.Default;
        di.ManualResolver = type =>
        {
            return type == typeof (IFoo) ? new Foo("Test") : null;
        };

        di.Register<IBar>(d => new Bar(d.Resolve<IFoo>())); // Register Factory
       
        var bar = di.Resolve<IBar>();

        Assert.IsNotNull(bar);
        Assert.AreEqual(bar.FooInstance.Name, "Test");
    }

    [TestMethod]
    [ExpectedExceptionAttribute(typeof(ResolveFailedException))]
    public void ManualResolveFail()
    {
        var di = new DiDay(); // or DiDay.Default;
       
        di.Register<IBar>(d => new Bar(d.Resolve<IFoo>())); // Register Factory

        var bar = di.Resolve<IBar>();

        Assert.IsNotNull(bar);
        Assert.AreEqual(bar.FooInstance.Name, "Test");
    }
}