Minimalistic DI class for .Net - https://www.nuget.org/packages/InstanceResolverFor?NormalizedVersion=1.0.0

InstanceResolver.cs

public abstract class InstanceResolverFor<SomeType>
{
    public static Func<SomeType> InstanceBuilder = () =>
    {
        throw new Exception(string.Format("The type '{0}' does not have a valid factory.", typeof(SomeType).FullName));
    };

    public static SomeType Instance { get { return InstanceBuilder(); } }
}

public abstract class InstanceResolverFor<SomeType, TConstructorParam>
{
    public static Func<TConstructorParam, SomeType> InstanceBuilder = 
        param => throw new Exception(string.Format("The type '{0}' does not have a valid factory.", typeof(SomeType).FullName));

    public static SomeType GetInstance(TConstructorParam param) => InstanceBuilder(param);
}

Tests.cs

[TestMethod]
public void Get_Instance_From_Valid_Object()
{
    InstanceResolverFor<ISomeInterface>.InstanceBuilder =
        () => new InterfaceImplementation();

    var instance = InstanceResolverFor<ISomeInterface>.Instance;
    Assert.IsNotNull(instance);
}

[TestMethod]
public void Get_Instance_From_Invalid_Object()
{
    try
    {
        var a = InstanceResolverFor<object>.Instance;
        Assert.Fail("Object should not have being returned.", a);
   }
    catch { }
}