Rename CFX_CountRef to CFX_SharedCopyOnWrite

core/fxcrt/cfx_count_ref_unittest.cpp

-// 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_count_ref.h"
-
-#include <map>
-#include <string>
-
-#include "testing/fx_string_testhelpers.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace {
-
-class Observer {
- public:
-  void OnConstruct(const std::string& name) { construction_counts_[name]++; }
-  void OnDestruct(const std::string& name) { destruction_counts_[name]++; }
-  int GetConstructionCount(const std::string& name) {
-    return construction_counts_[name];
-  }
-  int GetDestructionCount(const std::string& name) {
-    return destruction_counts_[name];
-  }
-
- private:
-  std::map<std::string, int> construction_counts_;
-  std::map<std::string, int> destruction_counts_;
-};
-
-class Object {
- public:
-  Object(Observer* observer, const std::string& name)
-      : name_(name), observer_(observer) {
-    observer->OnConstruct(name_);
-  }
-  Object(const Object& that) : name_(that.name_), observer_(that.observer_) {
-    observer_->OnConstruct(name_);
-  }
-  ~Object() { observer_->OnDestruct(name_); }
-
- private:
-  std::string name_;
-  Observer* observer_;
-};
-
-}  // namespace
-
-TEST(fxcrt, CountRefNull) {
-  Observer observer;
-  {
-    CFX_CountRef<Object> ptr;
-    EXPECT_EQ(nullptr, ptr.GetObject());
-  }
-}
-
-TEST(fxcrt, CountRefCopy) {
-  Observer observer;
-  {
-    CFX_CountRef<Object> ptr1;
-    ptr1.Emplace(&observer, std::string("one"));
-    {
-      CFX_CountRef<Object> ptr2 = ptr1;
-      EXPECT_EQ(1, observer.GetConstructionCount("one"));
-      EXPECT_EQ(0, observer.GetDestructionCount("one"));
-    }
-    {
-      CFX_CountRef<Object> ptr3(ptr1);
-      EXPECT_EQ(1, observer.GetConstructionCount("one"));
-      EXPECT_EQ(0, observer.GetDestructionCount("one"));
-    }
-    EXPECT_EQ(1, observer.GetConstructionCount("one"));
-    EXPECT_EQ(0, observer.GetDestructionCount("one"));
-  }
-  EXPECT_EQ(1, observer.GetDestructionCount("one"));
-}
-
-TEST(fxcrt, CountRefAssignOverOld) {
-  Observer observer;
-  {
-    CFX_CountRef<Object> ptr1;
-    ptr1.Emplace(&observer, std::string("one"));
-    ptr1.Emplace(&observer, std::string("two"));
-    EXPECT_EQ(1, observer.GetConstructionCount("one"));
-    EXPECT_EQ(1, observer.GetConstructionCount("two"));
-    EXPECT_EQ(1, observer.GetDestructionCount("one"));
-    EXPECT_EQ(0, observer.GetDestructionCount("two"));
-  }
-  EXPECT_EQ(1, observer.GetDestructionCount("two"));
-}
-
-TEST(fxcrt, CountRefAssignOverRetained) {
-  Observer observer;
-  {
-    CFX_CountRef<Object> ptr1;
-    ptr1.Emplace(&observer, std::string("one"));
-    CFX_CountRef<Object> ptr2(ptr1);
-    ptr1.Emplace(&observer, std::string("two"));
-    EXPECT_EQ(1, observer.GetConstructionCount("one"));
-    EXPECT_EQ(1, observer.GetConstructionCount("two"));
-    EXPECT_EQ(0, observer.GetDestructionCount("one"));
-    EXPECT_EQ(0, observer.GetDestructionCount("two"));
-  }
-  EXPECT_EQ(1, observer.GetDestructionCount("one"));
-  EXPECT_EQ(1, observer.GetDestructionCount("two"));
-}
-
-TEST(fxcrt, CountRefGetModify) {
-  Observer observer;
-  {
-    CFX_CountRef<Object> ptr;
-    EXPECT_NE(nullptr, ptr.GetPrivateCopy(&observer, std::string("one")));
-    EXPECT_EQ(1, observer.GetConstructionCount("one"));
-    EXPECT_EQ(0, observer.GetDestructionCount("one"));
-
-    EXPECT_NE(nullptr, ptr.GetPrivateCopy(&observer, std::string("one")));
-    EXPECT_EQ(1, observer.GetConstructionCount("one"));
-    EXPECT_EQ(0, observer.GetDestructionCount("one"));
-    {
-      CFX_CountRef<Object> other(ptr);
-      EXPECT_NE(nullptr, ptr.GetPrivateCopy(&observer, std::string("one")));
-      EXPECT_EQ(2, observer.GetConstructionCount("one"));
-      EXPECT_EQ(0, observer.GetDestructionCount("one"));
-    }
-    EXPECT_EQ(2, observer.GetConstructionCount("one"));
-    EXPECT_EQ(1, observer.GetDestructionCount("one"));
-  }
-  EXPECT_EQ(2, observer.GetDestructionCount("one"));
-}