| // Copyright 2016 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "core/fxcrt/cfx_retain_ptr.h" |
| |
| #include <utility> |
| #include <vector> |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace { |
| |
| class PseudoRetainable { |
| public: |
| PseudoRetainable() : retain_count_(0), release_count_(0) {} |
| void Retain() { ++retain_count_; } |
| void Release() { ++release_count_; } |
| int retain_count() const { return retain_count_; } |
| int release_count() const { return release_count_; } |
| |
| private: |
| int retain_count_; |
| int release_count_; |
| }; |
| |
| } // namespace |
| |
| TEST(fxcrt, RetainPtrNull) { |
| CFX_RetainPtr<PseudoRetainable> ptr; |
| EXPECT_EQ(nullptr, ptr.Get()); |
| } |
| |
| TEST(fxcrt, RetainPtrNormal) { |
| PseudoRetainable obj; |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr(&obj); |
| EXPECT_EQ(&obj, ptr.Get()); |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(0, obj.release_count()); |
| } |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(1, obj.release_count()); |
| } |
| |
| TEST(fxcrt, RetainPtrCopyCtor) { |
| PseudoRetainable obj; |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr1(&obj); |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr2(ptr1); |
| EXPECT_EQ(2, obj.retain_count()); |
| EXPECT_EQ(0, obj.release_count()); |
| } |
| EXPECT_EQ(2, obj.retain_count()); |
| EXPECT_EQ(1, obj.release_count()); |
| } |
| EXPECT_EQ(2, obj.retain_count()); |
| EXPECT_EQ(2, obj.release_count()); |
| } |
| |
| TEST(fxcrt, RetainPtrMoveCtor) { |
| PseudoRetainable obj; |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr1(&obj); |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr2(std::move(ptr1)); |
| EXPECT_EQ(nullptr, ptr1.Get()); |
| EXPECT_EQ(&obj, ptr2.Get()); |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(0, obj.release_count()); |
| } |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(1, obj.release_count()); |
| } |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(1, obj.release_count()); |
| } |
| |
| TEST(fxcrt, RetainPtrResetNull) { |
| PseudoRetainable obj; |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr(&obj); |
| ptr.Reset(); |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(1, obj.release_count()); |
| } |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(1, obj.release_count()); |
| } |
| |
| TEST(fxcrt, RetainPtrReset) { |
| PseudoRetainable obj1; |
| PseudoRetainable obj2; |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr(&obj1); |
| ptr.Reset(&obj2); |
| EXPECT_EQ(1, obj1.retain_count()); |
| EXPECT_EQ(1, obj1.release_count()); |
| EXPECT_EQ(1, obj2.retain_count()); |
| EXPECT_EQ(0, obj2.release_count()); |
| } |
| EXPECT_EQ(1, obj1.retain_count()); |
| EXPECT_EQ(1, obj1.release_count()); |
| EXPECT_EQ(1, obj2.retain_count()); |
| EXPECT_EQ(1, obj2.release_count()); |
| } |
| |
| TEST(fxcrt, RetainPtrSwap) { |
| PseudoRetainable obj1; |
| PseudoRetainable obj2; |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr1(&obj1); |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr2(&obj2); |
| ptr1.Swap(ptr2); |
| EXPECT_EQ(1, obj1.retain_count()); |
| EXPECT_EQ(0, obj1.release_count()); |
| EXPECT_EQ(1, obj2.retain_count()); |
| EXPECT_EQ(0, obj2.release_count()); |
| } |
| EXPECT_EQ(1, obj1.retain_count()); |
| EXPECT_EQ(1, obj1.release_count()); |
| EXPECT_EQ(1, obj2.retain_count()); |
| EXPECT_EQ(0, obj2.release_count()); |
| } |
| EXPECT_EQ(1, obj1.retain_count()); |
| EXPECT_EQ(1, obj1.release_count()); |
| EXPECT_EQ(1, obj2.retain_count()); |
| EXPECT_EQ(1, obj2.release_count()); |
| } |
| |
| TEST(fxcrt, RetainPtrLeak) { |
| PseudoRetainable obj; |
| PseudoRetainable* leak; |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr(&obj); |
| leak = ptr.Leak(); |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(0, obj.release_count()); |
| } |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(0, obj.release_count()); |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr; |
| ptr.Unleak(leak); |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(0, obj.release_count()); |
| } |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(1, obj.release_count()); |
| } |
| |
| TEST(fxcrt, RetainPtrSwapNull) { |
| PseudoRetainable obj1; |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr1(&obj1); |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr2; |
| ptr1.Swap(ptr2); |
| EXPECT_FALSE(ptr1); |
| EXPECT_TRUE(ptr2); |
| EXPECT_EQ(1, obj1.retain_count()); |
| EXPECT_EQ(0, obj1.release_count()); |
| } |
| EXPECT_EQ(1, obj1.retain_count()); |
| EXPECT_EQ(1, obj1.release_count()); |
| } |
| EXPECT_EQ(1, obj1.retain_count()); |
| EXPECT_EQ(1, obj1.release_count()); |
| } |
| |
| TEST(fxcrt, RetainPtrAssign) { |
| PseudoRetainable obj; |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr(&obj); |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr2; |
| ptr2 = ptr; |
| EXPECT_EQ(2, obj.retain_count()); |
| EXPECT_EQ(0, obj.release_count()); |
| } |
| EXPECT_EQ(2, obj.retain_count()); |
| EXPECT_EQ(1, obj.release_count()); |
| } |
| EXPECT_EQ(2, obj.retain_count()); |
| EXPECT_EQ(2, obj.release_count()); |
| } |
| |
| TEST(fxcrt, RetainPtrMoveAssign) { |
| PseudoRetainable obj; |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr1(&obj); |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr2; |
| EXPECT_EQ(&obj, ptr1.Get()); |
| EXPECT_EQ(nullptr, ptr2.Get()); |
| ptr2 = std::move(ptr1); |
| EXPECT_EQ(nullptr, ptr1.Get()); |
| EXPECT_EQ(&obj, ptr2.Get()); |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(0, obj.release_count()); |
| } |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(1, obj.release_count()); |
| } |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(1, obj.release_count()); |
| } |
| |
| TEST(fxcrt, RetainPtrEquals) { |
| PseudoRetainable obj1; |
| PseudoRetainable obj2; |
| CFX_RetainPtr<PseudoRetainable> null_ptr1; |
| CFX_RetainPtr<PseudoRetainable> obj1_ptr1(&obj1); |
| CFX_RetainPtr<PseudoRetainable> obj2_ptr1(&obj2); |
| { |
| CFX_RetainPtr<PseudoRetainable> null_ptr2; |
| EXPECT_TRUE(null_ptr1 == null_ptr2); |
| |
| CFX_RetainPtr<PseudoRetainable> obj1_ptr2(&obj1); |
| EXPECT_TRUE(obj1_ptr1 == obj1_ptr2); |
| |
| CFX_RetainPtr<PseudoRetainable> obj2_ptr2(&obj2); |
| EXPECT_TRUE(obj2_ptr1 == obj2_ptr2); |
| } |
| EXPECT_FALSE(null_ptr1 == obj1_ptr1); |
| EXPECT_FALSE(null_ptr1 == obj2_ptr1); |
| EXPECT_FALSE(obj1_ptr1 == obj2_ptr1); |
| } |
| |
| TEST(fxcrt, RetainPtrNotEquals) { |
| PseudoRetainable obj1; |
| PseudoRetainable obj2; |
| CFX_RetainPtr<PseudoRetainable> null_ptr1; |
| CFX_RetainPtr<PseudoRetainable> obj1_ptr1(&obj1); |
| CFX_RetainPtr<PseudoRetainable> obj2_ptr1(&obj2); |
| { |
| CFX_RetainPtr<PseudoRetainable> null_ptr2; |
| CFX_RetainPtr<PseudoRetainable> obj1_ptr2(&obj1); |
| CFX_RetainPtr<PseudoRetainable> obj2_ptr2(&obj2); |
| EXPECT_FALSE(null_ptr1 != null_ptr2); |
| EXPECT_FALSE(obj1_ptr1 != obj1_ptr2); |
| EXPECT_FALSE(obj2_ptr1 != obj2_ptr2); |
| } |
| EXPECT_TRUE(null_ptr1 != obj1_ptr1); |
| EXPECT_TRUE(null_ptr1 != obj2_ptr1); |
| EXPECT_TRUE(obj1_ptr1 != obj2_ptr1); |
| } |
| |
| TEST(fxcrt, RetainPtrLessThan) { |
| PseudoRetainable objs[2]; |
| CFX_RetainPtr<PseudoRetainable> obj1_ptr(&objs[0]); |
| CFX_RetainPtr<PseudoRetainable> obj2_ptr(&objs[1]); |
| EXPECT_TRUE(obj1_ptr < obj2_ptr); |
| EXPECT_FALSE(obj2_ptr < obj1_ptr); |
| } |
| |
| TEST(fxcrt, RetainPtrBool) { |
| PseudoRetainable obj1; |
| CFX_RetainPtr<PseudoRetainable> null_ptr; |
| CFX_RetainPtr<PseudoRetainable> obj1_ptr(&obj1); |
| bool null_bool = !!null_ptr; |
| bool obj1_bool = !!obj1_ptr; |
| EXPECT_FALSE(null_bool); |
| EXPECT_TRUE(obj1_bool); |
| } |
| |
| TEST(fxcrt, RetainPtrMakeRetained) { |
| auto ptr = pdfium::MakeRetain<CFX_Retainable>(); |
| EXPECT_TRUE(ptr->HasOneRef()); |
| { |
| CFX_RetainPtr<CFX_Retainable> other = ptr; |
| EXPECT_FALSE(ptr->HasOneRef()); |
| } |
| EXPECT_TRUE(ptr->HasOneRef()); |
| } |
| |
| TEST(fxcrt, RetainPtrVectorMove) { |
| // Proves move ctor is selected by std::vector over copy/delete, this |
| // may require the ctor to be marked "noexcept". |
| PseudoRetainable obj; |
| { |
| CFX_RetainPtr<PseudoRetainable> ptr(&obj); |
| std::vector<CFX_RetainPtr<PseudoRetainable>> vec1; |
| vec1.push_back(std::move(ptr)); |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(0, obj.release_count()); |
| |
| std::vector<CFX_RetainPtr<PseudoRetainable>> vec2 = std::move(vec1); |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(0, obj.release_count()); |
| |
| vec2.resize(4096); |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(0, obj.release_count()); |
| } |
| EXPECT_EQ(1, obj.retain_count()); |
| EXPECT_EQ(1, obj.release_count()); |
| } |