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// Copyright 2017 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/unowned_ptr.h"
#include <utility>
#include <vector>
#include "testing/gtest/include/gtest/gtest.h"
namespace fxcrt {
namespace {
class Clink {
public:
UnownedPtr<Clink> next_ = nullptr;
};
void DeleteDangling() {
Clink* ptr1 = new Clink();
Clink* ptr2 = new Clink();
ptr2->next_ = ptr1;
delete ptr1;
delete ptr2;
}
void AssignDangling() {
Clink* ptr1 = new Clink();
Clink* ptr2 = new Clink();
ptr2->next_ = ptr1;
delete ptr1;
ptr2->next_ = nullptr;
delete ptr2;
}
void ReleaseDangling() {
Clink* ptr1 = new Clink();
Clink* ptr2 = new Clink();
ptr2->next_ = ptr1;
delete ptr1;
ptr2->next_.Release();
delete ptr2;
}
} // namespace
TEST(UnownedPtr, PtrOk) {
Clink* ptr1 = new Clink();
Clink* ptr2 = new Clink();
ptr2->next_ = ptr1;
delete ptr2;
delete ptr1;
}
TEST(UnownedPtr, PtrNotOk) {
#if defined(MEMORY_TOOL_REPLACES_ALLOCATOR)
EXPECT_DEATH(DeleteDangling(), "");
#else
DeleteDangling();
#endif
}
TEST(UnownedPtr, AssignOk) {
Clink* ptr1 = new Clink();
Clink* ptr2 = new Clink();
ptr2->next_ = ptr1;
ptr2->next_ = nullptr;
delete ptr2;
delete ptr1;
}
TEST(UnownedPtr, AssignNotOk) {
#if defined(MEMORY_TOOL_REPLACES_ALLOCATOR)
EXPECT_DEATH(AssignDangling(), "");
#else
AssignDangling();
#endif
}
TEST(UnownedPtr, ReleaseOk) {
Clink* ptr1 = new Clink();
Clink* ptr2 = new Clink();
ptr2->next_ = ptr1;
ptr2->next_.Release();
delete ptr1;
delete ptr2;
}
TEST(UnownedPtr, ReleaseNotOk) {
#if defined(MEMORY_TOOL_REPLACES_ALLOCATOR)
EXPECT_DEATH(ReleaseDangling(), "");
#else
ReleaseDangling();
#endif
}
TEST(UnownedPtr, OperatorEQ) {
int foo;
UnownedPtr<int> ptr1;
EXPECT_TRUE(ptr1 == ptr1);
UnownedPtr<int> ptr2;
EXPECT_TRUE(ptr1 == ptr2);
UnownedPtr<int> ptr3(&foo);
EXPECT_TRUE(&foo == ptr3);
EXPECT_TRUE(ptr3 == &foo);
EXPECT_FALSE(ptr1 == ptr3);
ptr1 = &foo;
EXPECT_TRUE(ptr1 == ptr3);
}
TEST(UnownedPtr, OperatorNE) {
int foo;
UnownedPtr<int> ptr1;
EXPECT_FALSE(ptr1 != ptr1);
UnownedPtr<int> ptr2;
EXPECT_FALSE(ptr1 != ptr2);
UnownedPtr<int> ptr3(&foo);
EXPECT_FALSE(&foo != ptr3);
EXPECT_FALSE(ptr3 != &foo);
EXPECT_TRUE(ptr1 != ptr3);
ptr1 = &foo;
EXPECT_FALSE(ptr1 != ptr3);
}
TEST(UnownedPtr, OperatorLT) {
int foos[2];
UnownedPtr<int> ptr1(&foos[0]);
UnownedPtr<int> ptr2(&foos[1]);
EXPECT_FALSE(ptr1 < ptr1);
EXPECT_TRUE(ptr1 < ptr2);
EXPECT_FALSE(ptr2 < ptr1);
}
} // namespace fxcrt
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