80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
/*
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* This file is open source software, licensed to you under the terms
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* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
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* distributed with this work for additional information regarding copyright
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* ownership. You may not use this file except in compliance with the License.
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*
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/*
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* Copyright (C) 2019 Lightbits Labs Ltd. - All Rights Reserved
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*/
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#define BOOST_TEST_MODULE core
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#include <boost/test/unit_test.hpp>
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#include <seastar/core/deleter.hh>
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using namespace seastar;
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struct TestObject {
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TestObject() : has_ref(true){}
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TestObject(TestObject&& other) {
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has_ref = true;
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other.has_ref = false;
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}
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~TestObject() {
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if (has_ref) {
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++deletions_called;
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}
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}
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static int deletions_called;
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int has_ref;
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};
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int TestObject::deletions_called = 0;
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BOOST_AUTO_TEST_CASE(test_deleter_append_does_not_free_shared_object) {
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{
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deleter tested;
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{
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auto obj1 = TestObject();
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deleter del1 = make_object_deleter(std::move(obj1));
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auto obj2 = TestObject();
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deleter del2 = make_object_deleter(std::move(obj2));
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del1.append(std::move(del2));
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tested = del1.share();
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auto obj3 = TestObject();
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deleter del3 = make_object_deleter(std::move(obj3));
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del1.append(std::move(del3));
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}
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// since deleter tested still holds references to first two objects, last objec should be deleted
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BOOST_REQUIRE(TestObject::deletions_called == 1);
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}
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BOOST_REQUIRE(TestObject::deletions_called == 3);
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}
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BOOST_AUTO_TEST_CASE(test_deleter_append_same_shared_object_twice) {
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TestObject::deletions_called = 0;
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{
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deleter tested;
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{
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deleter del1 = make_object_deleter(TestObject());
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auto del2 = del1.share();
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tested.append(std::move(del1));
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tested.append(std::move(del2));
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}
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BOOST_REQUIRE(TestObject::deletions_called == 0);
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}
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BOOST_REQUIRE(TestObject::deletions_called == 1);
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}
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