public void CreateAliasForIndex2()
        {
            var indexAliasDtoTest = new IndexAliasDtoTest { Id = 1, Description = "Test index for aliases" };

            var aliasParameters = new AliasParameters
            {
                Actions = new List<AliasBaseParameters>
                {
                    new AliasAddParameters("test2", "indexaliasdtotests"),
                    new AliasAddParameters("test3", "indexaliasdtotests")
                }
            };

            using (var context = new ElasticsearchContext(ConnectionString, _elasticsearchMappingResolver))
            {
                context.AddUpdateDocument(indexAliasDtoTest, indexAliasDtoTest.Id);
                context.SaveChanges();

                var result = context.Alias(aliasParameters.ToString());
                Assert.IsTrue(result);

                Assert.IsTrue(context.AliasExists("test2"));
                Assert.IsTrue(context.AliasExists("test3"));

            }
        }
        public void CreateAliasForIndex3()
        {
            var indexAliasDtoTest3 = new IndexAliasDtoTest { Id = 3, Description = "no" };
            var indexAliasDtoTest4 = new IndexAliasDtoTest { Id = 4, Description = "boo" };
            var indexAliasDtoTest5 = new IndexAliasDtoTest { Id = 5, Description = "boo" };

            var aliasParameters = new AliasParameters
            {
                Actions = new List<AliasBaseParameters>
                {
                    new AliasAddParameters("test4", "indexaliasdtotests")
                    {
                        Routing="newroute",
                        Filter= new TermFilter("description", "boo") // "{ \"term\" : { \"description\" : \"boo\" } }"
                    }
                }
            };

            const bool userDefinedRouting = true;
            var elasticsearchSerializerConfiguration = new ElasticsearchSerializerConfiguration(_elasticsearchMappingResolver,
                true, false, userDefinedRouting);

            using (var context = new ElasticsearchContext(ConnectionString, elasticsearchSerializerConfiguration))
            {
                context.AddUpdateDocument(indexAliasDtoTest3, indexAliasDtoTest3.Id, new RoutingDefinition { RoutingId = "newroute" });
                context.AddUpdateDocument(indexAliasDtoTest4, indexAliasDtoTest4.Id, new RoutingDefinition { RoutingId = "newroute" });
                context.AddUpdateDocument(indexAliasDtoTest5, indexAliasDtoTest5.Id, new RoutingDefinition { RoutingId = "newroute" });
                context.SaveChanges();

                var result = context.Alias(aliasParameters.ToString());
                Assert.IsTrue(result);

                Assert.IsTrue(context.AliasExists("test4"));

                // using the index
                var doc3 = context.GetDocument<IndexAliasDtoTest>(3, new RoutingDefinition {RoutingId = "newroute"});
                Assert.IsTrue(doc3.Id == 3);
                var doc4 = context.GetDocument<IndexAliasDtoTest>(4, new RoutingDefinition { RoutingId = "newroute" });
                Assert.IsTrue(doc4.Id == 4);

            }

            IElasticsearchMappingResolver elasticsearchMappingResolver = new ElasticsearchMappingResolver();

            elasticsearchMappingResolver.AddElasticSearchMappingForEntityType(
                typeof(IndexAliasDtoTest),
                MappingUtils.GetElasticsearchMapping<IndexAliasDtoTest>("test4", "indexaliasdtotest")
            );

            using (var context = new ElasticsearchContext(ConnectionString, elasticsearchMappingResolver))
            {
                // using the alias
                var xx = context.GetDocument<IndexAliasDtoTest>(4);
                Assert.IsTrue(xx.Id == 4);

                // should not be found due to filter
                var result = context.SearchById<IndexAliasDtoTest>(3);
                Assert.IsNull(result);
            }
        }