111 lines
2.8 KiB
C++
111 lines
2.8 KiB
C++
#include "google/gtest/gtest.h"
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#include "../optional_ownership_ptr.h"
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#include "../macros.h"
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using std::unique_ptr;
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using std::function;
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using ::testing::Test;
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using namespace cpputils;
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class TestObject {
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public:
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TestObject(function<void()> destructorListener) : _destructorListener(destructorListener) {}
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virtual ~TestObject() {
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_destructorListener();
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}
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private:
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function<void()> _destructorListener;
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};
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class TestObjectHolder {
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public:
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TestObjectHolder()
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: _isDestructed(false),
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_testObject(new TestObject([this]() {_isDestructed = true;})) {
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}
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~TestObjectHolder() {
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if (!_isDestructed) {
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delete _testObject;
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_isDestructed = true;
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}
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}
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TestObject *get() {
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return _testObject;
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}
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bool isDestructed() {
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return _isDestructed;
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}
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private:
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bool _isDestructed;
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TestObject *_testObject;
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};
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class OptionalOwnershipPointerTest: public Test {
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public:
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TestObjectHolder obj;
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TestObjectHolder obj2;
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};
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TEST_F(OptionalOwnershipPointerTest, TestIsInitializedCorrectly) {
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EXPECT_FALSE(obj.isDestructed());
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}
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TEST_F(OptionalOwnershipPointerTest, DestructsWhenItHasOwnership) {
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{
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optional_ownership_ptr<TestObject> ptr = WithOwnership(unique_ptr<TestObject>(obj.get()));
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UNUSED(ptr);
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}
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EXPECT_TRUE(obj.isDestructed());
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}
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TEST_F(OptionalOwnershipPointerTest, DestructsWhenItHasOwnershipAfterAssignment) {
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{
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optional_ownership_ptr<TestObject> ptr = WithoutOwnership(obj.get());
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ptr = WithOwnership(unique_ptr<TestObject>(obj2.get()));
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}
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EXPECT_FALSE(obj.isDestructed());
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EXPECT_TRUE(obj2.isDestructed());
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}
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TEST_F(OptionalOwnershipPointerTest, DoesntDestructWhenItDoesntHaveOwnership) {
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{
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optional_ownership_ptr<TestObject> ptr = WithoutOwnership(obj.get());
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UNUSED(ptr);
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}
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EXPECT_FALSE(obj.isDestructed());
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}
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TEST_F(OptionalOwnershipPointerTest, DoesntDestructWhenItDoesntHaveOwnershipAfterAssignment) {
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{
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optional_ownership_ptr<TestObject> ptr = WithOwnership(unique_ptr<TestObject>(obj.get()));
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ptr = WithoutOwnership(obj2.get());
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EXPECT_TRUE(obj.isDestructed());
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}
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EXPECT_FALSE(obj2.isDestructed());
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}
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TEST_F(OptionalOwnershipPointerTest, DestructsOnReassignmentWithNull) {
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optional_ownership_ptr<TestObject> ptr = WithOwnership(unique_ptr<TestObject>(obj.get()));
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ptr = null<TestObject>();
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EXPECT_TRUE(obj.isDestructed());
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}
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TEST_F(OptionalOwnershipPointerTest, DoesntCrashWhenDestructingNullptr1) {
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optional_ownership_ptr<TestObject> ptr = null<TestObject>();
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UNUSED(ptr);
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}
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TEST_F(OptionalOwnershipPointerTest, DoesntCrashWhenDestructingNullptrWithoutOwnership) {
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optional_ownership_ptr<TestObject> ptr = WithoutOwnership((TestObject*)nullptr);
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UNUSED(ptr);
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}
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TEST_F(OptionalOwnershipPointerTest, DoesntCrashWhenDestructingNullptrWithOwnership) {
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optional_ownership_ptr<TestObject> ptr = WithOwnership(unique_ptr<TestObject>(nullptr));
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UNUSED(ptr);
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}
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