mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-25 17:10:23 +00:00
a4b4b358ff
This mechanism was unsafe to use in any multithreaded context, since the hook function was invoked on a raw pointer *after* decrementing the local ref count. Since we don't use it for anything anymore, let's just get rid of it.
155 lines
3.8 KiB
C++
155 lines
3.8 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibTest/TestCase.h>
|
|
|
|
#include <AK/NonnullRefPtr.h>
|
|
#include <AK/String.h>
|
|
|
|
struct Object : public RefCounted<Object> {
|
|
int x;
|
|
};
|
|
|
|
struct Object2 : Object {
|
|
};
|
|
|
|
struct SelfAwareObject : public RefCounted<SelfAwareObject> {
|
|
void will_be_destroyed() { ++num_destroyed; }
|
|
|
|
static size_t num_destroyed;
|
|
};
|
|
size_t SelfAwareObject::num_destroyed = 0;
|
|
|
|
TEST_CASE(basics)
|
|
{
|
|
RefPtr<Object> object = adopt_ref(*new Object);
|
|
EXPECT(object.ptr() != nullptr);
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
object->ref();
|
|
EXPECT_EQ(object->ref_count(), 2u);
|
|
object->unref();
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
|
|
{
|
|
NonnullRefPtr another = *object;
|
|
EXPECT_EQ(object->ref_count(), 2u);
|
|
}
|
|
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
}
|
|
|
|
TEST_CASE(assign_reference)
|
|
{
|
|
RefPtr<Object> object = adopt_ref(*new Object);
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
object = *object;
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
}
|
|
|
|
TEST_CASE(assign_ptr)
|
|
{
|
|
RefPtr<Object> object = adopt_ref(*new Object);
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
object = object.ptr();
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
}
|
|
|
|
TEST_CASE(copy_move_ref)
|
|
{
|
|
RefPtr<Object2> object = adopt_ref(*new Object2);
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
{
|
|
auto object2 = object;
|
|
EXPECT_EQ(object->ref_count(), 2u);
|
|
|
|
RefPtr<Object> object1 = object;
|
|
EXPECT_EQ(object->ref_count(), 3u);
|
|
|
|
object1 = move(object2);
|
|
EXPECT_EQ(object->ref_count(), 2u);
|
|
|
|
RefPtr<Object> object3(move(object1));
|
|
EXPECT_EQ(object3->ref_count(), 2u);
|
|
|
|
object1 = object3;
|
|
EXPECT_EQ(object3->ref_count(), 3u);
|
|
}
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
}
|
|
|
|
TEST_CASE(swap)
|
|
{
|
|
RefPtr<Object> object_a = adopt_ref(*new Object);
|
|
RefPtr<Object> object_b = adopt_ref(*new Object);
|
|
auto* ptr_a = object_a.ptr();
|
|
auto* ptr_b = object_b.ptr();
|
|
swap(object_a, object_b);
|
|
EXPECT_EQ(object_a, ptr_b);
|
|
EXPECT_EQ(object_b, ptr_a);
|
|
EXPECT_EQ(object_a->ref_count(), 1u);
|
|
EXPECT_EQ(object_b->ref_count(), 1u);
|
|
}
|
|
|
|
TEST_CASE(assign_moved_self)
|
|
{
|
|
RefPtr<Object> object = adopt_ref(*new Object);
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
#ifdef __clang__
|
|
# pragma clang diagnostic push
|
|
# pragma clang diagnostic ignored "-Wself-move"
|
|
#endif
|
|
object = move(object);
|
|
#ifdef __clang__
|
|
# pragma clang diagnostic pop
|
|
#endif
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
}
|
|
|
|
TEST_CASE(assign_copy_self)
|
|
{
|
|
RefPtr<Object> object = adopt_ref(*new Object);
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
|
|
#ifdef __clang__
|
|
# pragma clang diagnostic push
|
|
# pragma clang diagnostic ignored "-Wself-assign-overloaded"
|
|
#endif
|
|
object = object;
|
|
#ifdef __clang__
|
|
# pragma clang diagnostic pop
|
|
#endif
|
|
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
}
|
|
|
|
TEST_CASE(self_observers)
|
|
{
|
|
{
|
|
RefPtr<SelfAwareObject> object = adopt_ref(*new SelfAwareObject);
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
EXPECT_EQ(SelfAwareObject::num_destroyed, 0u);
|
|
|
|
object->ref();
|
|
EXPECT_EQ(object->ref_count(), 2u);
|
|
EXPECT_EQ(SelfAwareObject::num_destroyed, 0u);
|
|
|
|
object->unref();
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
EXPECT_EQ(SelfAwareObject::num_destroyed, 0u);
|
|
}
|
|
EXPECT_EQ(SelfAwareObject::num_destroyed, 1u);
|
|
}
|
|
|
|
TEST_CASE(adopt_ref_if_nonnull)
|
|
{
|
|
RefPtr<SelfAwareObject> object = adopt_ref_if_nonnull(new (nothrow) SelfAwareObject);
|
|
EXPECT_EQ(object.is_null(), false);
|
|
EXPECT_EQ(object->ref_count(), 1u);
|
|
|
|
SelfAwareObject* null_object = nullptr;
|
|
RefPtr<SelfAwareObject> failed_allocation = adopt_ref_if_nonnull(null_object);
|
|
EXPECT_EQ(failed_allocation.is_null(), true);
|
|
}
|