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- /*
- * Copyright 2016-present Facebook, Inc.
- *
- * Licensed 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 <folly/io/async/DestructorCheck.h>
- #include <folly/Memory.h>
- #include <folly/portability/GTest.h>
- using namespace folly;
- using namespace testing;
- class Derived : public DestructorCheck {};
- TEST(DestructorCheckTest, WithoutGuard) {
- Derived d;
- }
- TEST(DestructorCheckTest, SingleGuard) {
- Derived d;
- Derived::Safety s(d);
- ASSERT_FALSE(s.destroyed());
- }
- TEST(DestructorCheckTest, SingleGuardDestroyed) {
- auto d = std::make_unique<Derived>();
- Derived::Safety s(*d);
- ASSERT_FALSE(s.destroyed());
- d.reset();
- ASSERT_TRUE(s.destroyed());
- }
- TEST(DestructorCheckTest, MultipleGuards) {
- Derived d;
- auto s1 = std::make_unique<Derived::Safety>(d);
- auto s2 = std::make_unique<Derived::Safety>(d);
- auto s3 = std::make_unique<Derived::Safety>(d);
- // Remove the middle of the list.
- ASSERT_FALSE(s2->destroyed());
- s2.reset();
- // Add in a link after a removal has occurred.
- auto s4 = std::make_unique<Derived::Safety>(d);
- // Remove the beginning of the list.
- ASSERT_FALSE(s1->destroyed());
- s1.reset();
- // Remove the end of the list.
- ASSERT_FALSE(s4->destroyed());
- s4.reset();
- // Remove the last remaining of the list.
- ASSERT_FALSE(s3->destroyed());
- s3.reset();
- }
- TEST(DestructorCheckTest, MultipleGuardsDestroyed) {
- auto d = std::make_unique<Derived>();
- auto s1 = std::make_unique<Derived::Safety>(*d);
- auto s2 = std::make_unique<Derived::Safety>(*d);
- auto s3 = std::make_unique<Derived::Safety>(*d);
- auto s4 = std::make_unique<Derived::Safety>(*d);
- // Remove something from the list.
- ASSERT_FALSE(s2->destroyed());
- s2.reset();
- ASSERT_FALSE(s1->destroyed());
- ASSERT_FALSE(s3->destroyed());
- ASSERT_FALSE(s4->destroyed());
- d.reset();
- ASSERT_TRUE(s1->destroyed());
- ASSERT_TRUE(s3->destroyed());
- ASSERT_TRUE(s4->destroyed());
- }
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