public void TestDispose()
{
var manager = new TestManager();
manager.Extend(() => new InterfaceImpl());
manager.Extend(() => new InterfaceImpl(), "name-2");
manager.Get();
manager.Get("name-2");
Assert.AreEqual(true, manager.Contains());
Assert.AreEqual(true, manager.Contains("name-2"));
manager.Dispose();
Assert.AreEqual(false, manager.Contains());
Assert.AreEqual(false, manager.Contains("name-2"));
}