| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #include <catch.hpp> |
| #include <sstream> |
| |
| #include <req_sketch.hpp> |
| #include <test_allocator.hpp> |
| #include <test_type.hpp> |
| |
| namespace datasketches { |
| |
| using req_test_type_sketch = req_sketch<test_type, test_type_less, test_type_serde, test_allocator<test_type>>; |
| |
| TEST_CASE("req sketch custom type", "[req_sketch]") { |
| |
| // setup section |
| test_allocator_total_bytes = 0; |
| |
| SECTION("compact level zero") { |
| req_test_type_sketch sketch(4); |
| REQUIRE_THROWS_AS(sketch.get_quantile(0), std::runtime_error); |
| REQUIRE_THROWS_AS(sketch.get_min_value(), std::runtime_error); |
| REQUIRE_THROWS_AS(sketch.get_max_value(), std::runtime_error); |
| REQUIRE(sketch.get_serialized_size_bytes() == 8); |
| |
| for (int i = 0; i < 24; ++i) sketch.update(i); |
| //std::cout << sketch.to_string(true); |
| |
| REQUIRE(sketch.is_estimation_mode()); |
| REQUIRE(sketch.get_n() > sketch.get_num_retained()); |
| REQUIRE(sketch.get_min_value().get_value() == 0); |
| REQUIRE(sketch.get_max_value().get_value() == 23); |
| } |
| |
| SECTION("merge small") { |
| req_test_type_sketch sketch1(4); |
| sketch1.update(1); |
| |
| req_test_type_sketch sketch2(4); |
| sketch2.update(2); |
| |
| sketch2.merge(sketch1); |
| |
| //std::cout << sketch2.to_string(true); |
| |
| REQUIRE_FALSE(sketch2.is_estimation_mode()); |
| REQUIRE(sketch2.get_num_retained() == sketch2.get_n()); |
| REQUIRE(sketch2.get_min_value().get_value() == 1); |
| REQUIRE(sketch2.get_max_value().get_value() == 2); |
| } |
| |
| SECTION("merge higher levels") { |
| req_test_type_sketch sketch1(4); |
| for (int i = 0; i < 24; ++i) sketch1.update(i); |
| |
| req_test_type_sketch sketch2(4); |
| for (int i = 0; i < 24; ++i) sketch2.update(i); |
| |
| sketch2.merge(sketch1); |
| |
| //std::cout << sketch2.to_string(true); |
| |
| REQUIRE(sketch2.is_estimation_mode()); |
| REQUIRE(sketch2.get_n() > sketch2.get_num_retained()); |
| REQUIRE(sketch2.get_min_value().get_value() == 0); |
| REQUIRE(sketch2.get_max_value().get_value() == 23); |
| } |
| |
| SECTION("serialize deserialize") { |
| req_test_type_sketch sketch1(12); |
| |
| const int n = 1000; |
| for (int i = 0; i < n; i++) sketch1.update(i); |
| |
| std::stringstream s(std::ios::in | std::ios::out | std::ios::binary); |
| sketch1.serialize(s); |
| REQUIRE((size_t) s.tellp() == sketch1.get_serialized_size_bytes()); |
| auto sketch2 = req_test_type_sketch::deserialize(s); |
| REQUIRE((size_t) s.tellg() == sketch2.get_serialized_size_bytes()); |
| REQUIRE(s.tellg() == s.tellp()); |
| REQUIRE(sketch2.is_empty() == sketch1.is_empty()); |
| REQUIRE(sketch2.is_estimation_mode() == sketch1.is_estimation_mode()); |
| REQUIRE(sketch2.get_n() == sketch1.get_n()); |
| REQUIRE(sketch2.get_num_retained() == sketch1.get_num_retained()); |
| REQUIRE(sketch2.get_min_value().get_value() == sketch1.get_min_value().get_value()); |
| REQUIRE(sketch2.get_max_value().get_value() == sketch1.get_max_value().get_value()); |
| REQUIRE(sketch2.get_quantile(0.5).get_value() == sketch1.get_quantile(0.5).get_value()); |
| REQUIRE(sketch2.get_rank(0) == sketch1.get_rank(0)); |
| REQUIRE(sketch2.get_rank(n) == sketch1.get_rank(n)); |
| REQUIRE(sketch2.get_rank(n / 2) == sketch1.get_rank(n / 2)); |
| } |
| |
| SECTION("moving merge") { |
| req_test_type_sketch sketch1(4); |
| for (int i = 0; i < 10; i++) sketch1.update(i); |
| req_test_type_sketch sketch2(4); |
| sketch2.update(10); |
| sketch2.merge(std::move(sketch1)); |
| REQUIRE(sketch2.get_min_value().get_value() == 0); |
| REQUIRE(sketch2.get_max_value().get_value() == 10); |
| REQUIRE(sketch2.get_n() == 11); |
| } |
| |
| // cleanup |
| if (test_allocator_total_bytes != 0) { |
| REQUIRE(test_allocator_total_bytes == 0); |
| } |
| } |
| |
| } /* namespace datasketches */ |