public void TestCustomInstanceByType()
        {
            var factory = new CustomInstanceFactory();

            var PostingsFormat = factory.GetPostingsFormat("Lucene40");

            assertNotNull(PostingsFormat);
            assertEquals(typeof(CustomNamedPostingsFormat), PostingsFormat.GetType());
        }
        public void TestCustomInstanceByName()
        {
            var factory = new CustomInstanceFactory();

            var PostingsFormat = factory.GetPostingsFormat("ThisIsATest");

            assertNotNull(PostingsFormat);
            assertEquals(typeof(NotIgnoredPostingsFormat), PostingsFormat.GetType());
        }