ladybird/Tests/AK/TestNonnullRefPtr.cpp
Daniel Bertalan 6821cd45ed Tests: Fix compile errors on Clang
Since Clang enables a couple of warnings that we don't have in GCC,
these were not caught before. Included fixes:

- Use correct printf format string for `size_t`
- Don't compare Nonnull(Ref|Own)Ptr` to nullptr
- Fix unsigned int& => unsigned long& conversion
2021-07-14 13:12:25 +02:00

60 lines
1.2 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;
};
TEST_CASE(basics)
{
auto object = adopt_ref(*new Object);
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)
{
auto object = adopt_ref(*new Object);
EXPECT_EQ(object->ref_count(), 1u);
object = *object;
EXPECT_EQ(object->ref_count(), 1u);
}
TEST_CASE(assign_owner_of_self)
{
struct Object : public RefCounted<Object> {
RefPtr<Object> parent;
};
auto parent = adopt_ref(*new Object);
auto child = adopt_ref(*new Object);
child->parent = move(parent);
child = *child->parent;
EXPECT_EQ(child->ref_count(), 1u);
}
TEST_CASE(swap_with_self)
{
auto object = adopt_ref(*new Object);
swap(object, object);
EXPECT_EQ(object->ref_count(), 1u);
}