diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /third_party/libwebrtc/api/scoped_refptr_unittest.cc | |
parent | Initial commit. (diff) | |
download | thunderbird-upstream.tar.xz thunderbird-upstream.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | third_party/libwebrtc/api/scoped_refptr_unittest.cc | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/scoped_refptr_unittest.cc b/third_party/libwebrtc/api/scoped_refptr_unittest.cc new file mode 100644 index 0000000000..22b61209cd --- /dev/null +++ b/third_party/libwebrtc/api/scoped_refptr_unittest.cc @@ -0,0 +1,111 @@ +/* + * Copyright 2019 The WebRTC Project Authors. All rights reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "api/scoped_refptr.h" + +#include <utility> +#include <vector> + +#include "test/gtest.h" + +namespace rtc { +namespace { + +struct FunctionsCalled { + int addref = 0; + int release = 0; +}; + +class ScopedRefCounted { + public: + explicit ScopedRefCounted(FunctionsCalled* called) : called_(*called) {} + ScopedRefCounted(const ScopedRefCounted&) = delete; + ScopedRefCounted& operator=(const ScopedRefCounted&) = delete; + + void AddRef() { + ++called_.addref; + ++ref_count_; + } + void Release() { + ++called_.release; + if (0 == --ref_count_) + delete this; + } + + private: + ~ScopedRefCounted() = default; + + FunctionsCalled& called_; + int ref_count_ = 0; +}; + +TEST(ScopedRefptrTest, IsCopyConstructable) { + FunctionsCalled called; + scoped_refptr<ScopedRefCounted> ptr(new ScopedRefCounted(&called)); + scoped_refptr<ScopedRefCounted> another_ptr = ptr; + + EXPECT_TRUE(ptr); + EXPECT_TRUE(another_ptr); + EXPECT_EQ(called.addref, 2); +} + +TEST(ScopedRefptrTest, IsCopyAssignable) { + FunctionsCalled called; + scoped_refptr<ScopedRefCounted> another_ptr; + scoped_refptr<ScopedRefCounted> ptr(new ScopedRefCounted(&called)); + another_ptr = ptr; + + EXPECT_TRUE(ptr); + EXPECT_TRUE(another_ptr); + EXPECT_EQ(called.addref, 2); +} + +TEST(ScopedRefptrTest, IsMoveConstructableWithoutExtraAddRefRelease) { + FunctionsCalled called; + scoped_refptr<ScopedRefCounted> ptr(new ScopedRefCounted(&called)); + scoped_refptr<ScopedRefCounted> another_ptr = std::move(ptr); + + EXPECT_FALSE(ptr); + EXPECT_TRUE(another_ptr); + EXPECT_EQ(called.addref, 1); + EXPECT_EQ(called.release, 0); +} + +TEST(ScopedRefptrTest, IsMoveAssignableWithoutExtraAddRefRelease) { + FunctionsCalled called; + scoped_refptr<ScopedRefCounted> another_ptr; + scoped_refptr<ScopedRefCounted> ptr(new ScopedRefCounted(&called)); + another_ptr = std::move(ptr); + + EXPECT_FALSE(ptr); + EXPECT_TRUE(another_ptr); + EXPECT_EQ(called.addref, 1); + EXPECT_EQ(called.release, 0); +} + +TEST(ScopedRefptrTest, MovableDuringVectorReallocation) { + static_assert( + std::is_nothrow_move_constructible<scoped_refptr<ScopedRefCounted>>(), + ""); + // Test below describes a scenario where it is helpful for move constructor + // to be noexcept. + FunctionsCalled called; + std::vector<scoped_refptr<ScopedRefCounted>> ptrs; + ptrs.reserve(1); + // Insert more elements than reserved to provoke reallocation. + ptrs.emplace_back(new ScopedRefCounted(&called)); + ptrs.emplace_back(new ScopedRefCounted(&called)); + + EXPECT_EQ(called.addref, 2); + EXPECT_EQ(called.release, 0); +} + +} // namespace +} // namespace rtc |